NextGen Peps Review
Scored 5.95/10 on the published Peptide Source Review formula: lab credibility, shipping, pricing, operating history, and transparency.
- COAs on file
- 33
COAs on file
- Confirmed at the lab
- 33
Confirmed at the lab
- Products
- 58
Products
- Labs
- 3
Labs
5.95/ 10
Last scored
No testing cap
- Lab credibility and recency55%6.1 (show how this was scored)
- Shipping and refund20%5.0 (show how this was scored)
- Pricing15%8.0 (show how this was scored)
- Operating history5%2.3 (show how this was scored)
- Business transparency5%5.5 (show how this was scored)
Weights are fixed for every vendor. Select a row to see how it was scored.
Is NextGen Peps legit?
NextGen Peps scores 5.95 out of 10 (Fair, #61 of 100) as of November 3, 2026 and passes our testing gate: 33 of the 58 products we score carry a certificate, 33 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is pricing (8.0/10); its weakest is operating history (2.3/10), with over a year of records.
On lab evidence, the heaviest-weighted factor, NextGen Peps has independently verified third-party COAs, with COA work on record from Bioviridian, Janoshik Analytical, BioRegen. Its lowest price per milligram in our data is on NAD+ (see the table below).
How this score was calculated
Every point below follows the published tables in our methodology, with the policy wording we scored and a link to where we read it. Evidence last checked October 22, 2026. Lab credibility is worked product by product from the certificates on file.
Lab credibility6.1/10
Each carried product (lab supplies excluded) is scored from the certificate on file for it, on the published lab rubric: 3 for a published certificate, then points for the laboratory, the verification key, the tests on the certificate and its purity, held to 0 to 10. A certificate that is self-issued, names no laboratory, or comes from a laboratory whose independence is not established scores a flat 2.0; a product with no certificate, a certificate the laboratory’s own record fails, or a posted copy that differs materially from the laboratory’s copy scores 0. Calculated on , the day this page was built; the date each certificate was tested is shown on its row.
- BPC-1578.5
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.54% (99.0% up to but not including 99.7%)
- TB-5009.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.77% (99.7% or higher)
- GHK-Cu9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.73% (99.7% or higher)
- CJC-12958.5
Certificate from Janoshik Analytical, tier B+ · tested 2026-06-19
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.31% (99.0% up to but not including 99.7%)
- Ipamorelin9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.78% (99.7% or higher)
- Semax7.0
Certificate from Janoshik Analytical, tier B+ · tested 2026-06-19
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- −1.5Purity 98.848% (97.0% up to but not including 99.0%)
- Selank0.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- Melanotan-29.0
Certificate from Janoshik Analytical, tier B+ · tested 2026-06-19
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.715% (99.7% or higher)
- Sermorelin7.0
Certificate from Janoshik Analytical, tier B+ · tested 2026-06-19
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- −1.5Purity 98.817% (97.0% up to but not including 99.0%)
- Tesamorelin9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.77% (99.7% or higher)
- Retatrutide9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.72% (99.7% or higher)
- Tirzepatide9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.76% (99.7% or higher)
- Semaglutide9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.74% (99.7% or higher)
- NAD+9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.81% (99.7% or higher)
- MOTS-c9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.79% (99.7% or higher)
- KPV8.0
Certificate from Janoshik Analytical, tier B+ · tested 2026-04-30
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.007% (99.0% up to but not including 99.7%)
- PT-1418.0
Certificate from Janoshik Analytical, tier B+ · tested 2026-04-30
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.653% (99.0% up to but not including 99.7%)
- AOD-96048.0
Certificate from Janoshik Analytical, tier B+ · tested 2026-04-30
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.089% (99.0% up to but not including 99.7%)
- 5-Amino-1MQ8.0
Certificate from BioRegen, tier A · tested 2026-04-20
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (BioRegen)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.48% (99.0% up to but not including 99.7%)
- Cagrilintide9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.74% (99.7% or higher)
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.58% (99.0% up to but not including 99.7%)
- SS-318.5
Certificate from Janoshik Analytical, tier B+ · tested 2026-04-30
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.941% (99.7% or higher)
- Melanotan-18.5
Certificate from Janoshik Analytical, tier B+ · tested 2026-04-30
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.767% (99.7% or higher)
- VIP8.0
Certificate from Janoshik Analytical, tier B+ · tested 2026-04-30
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.195% (99.0% up to but not including 99.7%)
- SNAP-88.5
Certificate from Janoshik Analytical, tier B+ · tested 2026-04-30
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Janoshik Analytical)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Purity 99.77% (99.7% or higher)
- PNC-278.0
Certificate from BioRegen, tier A · tested 2026-05-14
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (BioRegen)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.63% (99.0% up to but not including 99.7%)
- Pinealon8.5
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.54% (99.0% up to but not including 99.7%)
- GLOW9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.71% (99.7% or higher)
- KLOW9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.8% (99.7% or higher)
- HCG9.0
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.73% (99.7% or higher)
- Thymagen0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Vesugen0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Bronchogen0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Vilon0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- SLU-PP-3328.0
Certificate from BioRegen, tier A · tested 2025-07-18
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (BioRegen)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- 0.0Purity 99.31% (99.0% up to but not including 99.7%)
- −0.043Age: more than 12 months old, so 0.25 × 8.0 ÷ the weighted product count comes off the mean (AGE below)
- PEG-MGF0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- ARA-2900.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Chonluten0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.62% (99.0% up to but not including 99.7%)
- Testagen0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Pancragen0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Prostamax0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Cartalax0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Cardiogen0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Ovagen0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Cortagen0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Epitalon8.5
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.66% (99.0% up to but not including 99.7%)
Certificate from Bioviridian, tier A- · tested 2026-09-25
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A- (Bioviridian)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.77% (99.7% or higher)
- IGF-1 LR30.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- LL-370.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- GHRP-20.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- GHRP-60.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Hexarelin0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Glutathione0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Oxytocin0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Mazdutide0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Survodutide0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Adipotide0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
Weighted mean of 58 products (24 non-core products without a certificate counted at half weight): 281.5 ÷ 46.0 = 6.120.
- −0.043AGE Certificates older than 12 months: 1 scored certificate(s) older than 12 months: slu-pp-332 2025-07-18
6.120 − 0.043 = 6.076, rounded to 0.1: 6.1/10.
Testing gate: 33 of 58 products have a certificate from a directory laboratory (not tier D, not self-issued) with the key confirmed at the laboratory. That is at least half, so the vendor counts as third-party tested and no cap applies.
Shipping and refunds5.0/10
- 0
Returns and refunds
No Refunds or Returns ... All sales are final. (24-hour cancellation is store credit only)
- +1
Lost or damaged parcels
Lost in Transit ... subject to review on a case-by-case basis; 'We may offer a replacement at our discretion'
- +0.5
Dispatch time
Orders are typically processed and shipped within 1-3 business days after payment confirmation.
- +1
Tracking on all orders
you'll receive a confirmation email with a USPS tracking number.
- +1.5
Payment you can dispute
store payment badges list visa, mastercard, american-express, discover, paypal, venmo (FAQ: 'shown during checkout'); checkout not opened
- +1
Shipping rates published
Standard rates start at [price] for First-Class Mail ... Free shipping is available on orders over [price]
Total +5: 5.0/10.
Pricing8.0/10
We compared NextGen Peps’s current single-vial prices on 44 products, each matched to the same product and milligrams per vial, with the median price of the other vendors. Its typical price (the median ratio across those products) is 13% below the market median (ratio 0.87), which the published scale maps to 8.0/10. checked
Operating history2.3/10
Counted from July 18, 2025, the earliest dated evidence of this business operating: 15.1 months as of October 22, 2026, which the published table maps to 2.3/10.
Earliest dated certificate issued to this vendor: BioRegen COA #10680 (key NEXTPEPS0), client 'NextgenPeps [email protected]', sample received 2025-07-09, analysed 2025-07-18 (vendor-hosted PDF; BioRegen's lookup is behind a captcha, not attempted). Reddit customer mentions from 2025-10-22; first archived store 2026-02-08.
- 2025-07-18 Certificate: BioRegen #10680, client NextgenPeps nextgenpeps.com (opens in new tab)
- 2025-10-22 Dated public mention: 'I got the wolverine stack ... from nextgenpeps ... ghkcu for like [price]' reddit.com (opens in new tab)
- 2026-02-08 Archived copy: first archived store with prices web.archive.org (opens in new tab)
- 2025-04-30 Domain registration (context only): current domain nextgenpeps.com rdap.verisign.com (opens in new tab)
Transparency5.5/10
- +2
- +1
Business address
501 W Broadway Ste A, San Diego, CA 92101 (site footer); NextGenPeps LLC, 1331 Columbia Street, San Diego, CA 92101 (privacy policy)
Address checked: mailbox or PMB.
- +1
- 0
- 0
Dated terms with a governing law
Privacy 'Last updated: June 17, 2026'; Terms of Service link returns 404, no governing law found
- +1.5
Testing lab named, certificates published
COA library lists Bioregen, Janoshik and Bioviridian reports per product
Total +5.5: 5.5/10.
Reader discount
Save 10% at NextGen Peps
- Rated 5.95/10 · Fair
- 33 COAs confirmed at the issuing lab
- Best value: NAD+ at $0.16/mg
Affiliate link: we may earn a commission if you buy. It never affects the score or rank.
Current NextGen Peps offers
10% Off Your First Order
NextGen Peps homepage: Sign up now and receive a 10% discount code valid on your next purchase!: email signup required to receive the discount code.
Select and Subscribe: 20% Off a Monthly 3-Item Pick
NextGen Peps' homepage describes a subscription option where researchers choose any 3 catalog items each month and receive 20% off versus retail pricing, plus a free fourth item selected for the researcher. Billed monthly, cancel at the end of any billing period.
Audit history and why the rating changed
We re-audit vendors against their live COAs and site. Here is what most recently moved this rating, and why.
See the full score history and chart
- Most recent audit · 5.93to5.95
Market medians updated on 3 November 2026 after the NextGen Peps re-check added priced listings: pricing 7.9 to 8.0.
- Audit · 6.37to5.93
Lab evidence re-checked on 3 November 2026. No certificate newer than those of 25 September 2026 had been published, and the 14 bioregulator products still have none. Thirteen products on sale on the vendor's site that our catalogue had not listed were added: Epitalon and Kisspeptin-10 carry Bioviridian certificates confirmed at the laboratory, and eleven out-of-stock products have no certificate, which count under our coverage rule. Certificates now cover 33 of the 58 products we list. Lab 6.9 to 6.1.
- Audit · 6.36to6.37
Market medians updated after Stack Research was added pricing 7.8 to 7.9.
Earlier audits (13)
- Audit · 6.37to6.36
Pricing recomputed on 26 October 2026: listings added for a newly reviewed vendor (StudzPeptides) moved the market median for the same products: pricing 7.9 to 7.8.
- Audit · 6.36to6.37
Pricing recomputed on 26 October 2026: a vendor was removed from the directory, which moved the market median for the same products: pricing 7.8 to 7.9.
- Audit · 6.37to6.36
Pricing recomputed on 26 October 2026: listings added for a newly reviewed vendor (Lotus Peptide) moved the market median for the same products: pricing 7.9 to 7.8.
- Audit · 6.39to6.37
Pricing recomputed on 23 October 2026 under the revised rule E1 (standing offers), which prices a size at the lowest total a buyer can pay without a code under standing prices, so a standing offer that includes a second vial at no extra cost now counts at all the milligrams received, in the vendor's own price and in the market medians for the same products: pricing 8.0 to 7.9.
- Audit · 5.78to6.39
Lab score recalculated on 22 October 2026 under the published core-product rule (A1b): a missing certificate on one of the 15 most widely carried products still counts fully, while on any other product it now counts at half weight, so a broad catalogue is not penalised as much for its breadth. Lab 5.8 to 6.9.
- Audit · 5.73to5.78
BioRegen certificates confirmed at the laboratory's own lookup on 22 October 2026 (an invented test key returned no match), so they now receive the confirmed-key credit under our published lab rule. Lab 5.7 to 5.8.
- Audit · 5.67to5.73
Claim deductions re-checked on 22 October 2026 under the published rule that a claim deduction applies only where a site claim is contradicted by what its certificates show, never for products merely lacking a certificate. Lab 5.6 to 5.7.
- Audit · 5.51to5.67
MDx BioAnalytical Laboratory confirmed accredited in PJLA's register on 22 October 2026 (certificate L26-502, scope includes peptides and endotoxins), so its certificates now receive the accreditation credit under our published lab rule. Lab 5.3 to 5.6.
- Audit · 5.53to5.51
Re-scored on 22 October 2026 under our published rubric for shipping, pricing, operating history and transparency, applied to every vendor the same day: prices re-read from the vendor's site and matched by milligrams per vial, operating history from the earliest dated evidence of the business, and policies scored item by item. shipping and refunds 5.5 to 5.0, pricing 7.2 to 8.0, operating history 2.7 to 2.3, transparency 5.9 to 5.5.
- Audit · 5.42to5.53
Lab score recalculated on 22 October 2026 under the uniform published rubric applied to every vendor: every listed product was rescored on the same fixed certificate points, with fixed deductions for certificates more than 12 months old and site statements about testing that the certificates do not bear out. Lab 5.1 to 5.3.
- Audit · 7.12to5.42
Lab evidence re-checked on 20 October 2026 under our coverage rule, which counts a listed product with no published certificate as zero in the lab average. Certificates cover 31 of the 46 products we list that the vendor offers for sale. Lab 8.2 to 5.1.
- Audit · 6.90to7.12
Bioviridian added to the laboratory roster after verifying certificate COA9754 at the laboratory's own portal and confirming the vendor's published PDF is byte-identical to the laboratory's. 21 Bioviridian certificates dated 2026-09-25, carrying endotoxin testing under USP <85>.
- Audit · Verified, no change
Re-audited from live COAs. Verified BioRegen and Janoshik reports (the newest add endotoxin). Flags: an SS-31 underfill near 80% and one elevated BPC-157 endotoxin reading.
Editor’s notes
NextGenPeps LLC publishes a searchable certificate library from three laboratories. BioRegen reports (verification key NEXTPEPS0) cover only a small part of the catalog, 3 of the 31 certificated products, with UHPLC purity and MS identity; Bioviridian certificates cover the largest share, 17 of the 31. Janoshik reports dated March to June 2026 cover newer products, and the June reports for several add endotoxin testing. In late September 2026 the library added 21 Bioviridian certificates; on 20 October 2026 the Bioviridian certificates for the 17 listed products they cover were byte-identical to the copies on the laboratory's portal, and the BPC-157 10mg report (COA9754) included an endotoxin result under USP <85>. Purities on file range from about 98.8% to 99.9%. An SS-31 vial measured about 80% of its expected content, and one BPC-157 5mg report from June 2026 showed 8.454 EU per vial of endotoxin. No sterility or heavy-metals testing appears on the certificates we read. When we re-checked on 3 November 2026 the library held no certificate newer than those of 25 September 2026, and still none for the 14 bioregulator products, which remained out of stock. Thirteen products on sale that our catalogue had not listed were added: Epitalon and Kisspeptin-10 are in stock with Bioviridian certificates that we confirmed at the laboratory, and the other eleven, Selank among them, are out of stock with no certificate. Certificates now cover 33 of the 58 products we list. CJC-1295 with DAC, GLP-TZ and NAD+ were out of stock that day. GLP-1 products are sold under code names. On 22 October 2026: USPS with tracking, all sales final, and the store displayed card, PayPal and Venmo payment badges. San Diego mailing address, no named owner. The domain was registered in April 2025. The company reported a payment outage on 19 October 2026 that was fixed the same day; outages are noted, not scored. A Select and Subscribe plan launched on 2 November 2026 takes 20% off a monthly pick of three items; it is not counted as a standing single-vial price.
NextGen Peps COAs and lab test results
One row per product: the certificate on file and how the lab rule reads it, the laboratory that issued it and its tier, the date it was tested, the purity it reports, and the lowest price per milligram we recorded (per IU or mL where a product is sold that way).
BioviridianTier A-tested
- Purity
- 99.54%
- Price per mg
- $6.20$62.00 / 10mgbest of 2 sizes
BioviridianTier A-tested
- Purity
- 99.77%
- Price per mg
- $5.80$58.00 / 10mg
BioviridianTier A-tested
- Purity
- 99.73%
- Price per mg
- $0.59$59.00 / 100mgbest of 2 sizes
Janoshik AnalyticalTier B+tested
- Purity
- 99.31%
- Price per mg
- $14.00$70.00 / 5mg
BioviridianTier A-tested
- Purity
- 99.78%
- Price per mg
- $6.30$63.00 / 10mg
Janoshik AnalyticalTier B+tested
- Purity
- 98.848%
- Price per mg
- $4.20$42.00 / 10mg
- Purity
- —
- Price per mg
- Out of stock
Janoshik AnalyticalTier B+tested
- Purity
- 99.715%
- Price per mg
- $3.50$35.00 / 10mg
Janoshik AnalyticalTier B+tested
- Purity
- 98.817%
- Price per mg
- $6.20$62.00 / 10mg
BioviridianTier A-tested
- Purity
- 99.77%
- Price per mg
- $7.40$74.00 / 10mg
BioviridianTier A-tested
- Purity
- 99.72%
- Price per mg
- $5.72$286.00 / 50mgbest of 3 sizes
BioviridianTier A-tested
- Purity
- 99.76%
- Price per mg
- $6.30$126.00 / 20mgbest of 2 sizes
BioviridianTier A-tested
- Purity
- 99.74%
- Price per mg
- $7.80$78.00 / 10mg
BioviridianTier A-tested
- Purity
- 99.79%
- Price per mg
- $4.20$42.00 / 10mg
Janoshik AnalyticalTier B+tested
- Purity
- 99.007%
- Price per mg
- $4.20$42.00 / 10mg
Janoshik AnalyticalTier B+tested
- Purity
- 99.653%
- Price per mg
- $4.30$43.00 / 10mg
Janoshik AnalyticalTier B+tested
- Purity
- 99.089%
- Price per mg
- $8.40$42.00 / 5mg
BioRegenTier Atested
- Purity
- 99.48%
- Price per mg
- $4.30$43.00 / 10mg
BioviridianTier A-tested
- Purity
- 99.74%
- Price per mg
- $10.60$106.00 / 10mg
BioviridianTier A-tested
- Purity
- 99.58%
- Price per mg
- $6.70$67.00 / 10mg
Janoshik AnalyticalTier B+tested
- Purity
- 99.941%
- Price per mg
- $6.30$63.00 / 10mg
Janoshik AnalyticalTier B+tested
- Purity
- 99.767%
- Price per mg
- $3.50$35.00 / 10mg
Janoshik AnalyticalTier B+tested
- Purity
- 99.195%
- Price per mg
- $7.90$79.00 / 10mg
Janoshik AnalyticalTier B+tested
- Purity
- 99.77%
- Price per mg
- $4.50$45.00 / 10mg
BioviridianTier A-tested
- Purity
- 99.54%
- Price per mg
- $5.80$58.00 / 10mg
BioviridianTier A-tested
- Purity
- 99.71%
- Price per mg
- $1.53$107.00 / 70mgbest of 2 sizes
BioviridianTier A-tested
- Purity
- 99.73%
- Price per IU
- $0.01$63.00 / 5000 IU
- Purity
- —
- Price per mg
- $2.70$54.00 / 20mg
- Purity
- —
- Price per mg
- $2.55$51.00 / 20mg
- Purity
- —
- Price per mg
- $2.55$51.00 / 20mg
- Purity
- —
- Price per mg
- $2.25$45.00 / 20mg
- Purity
- —
- Price per mg
- $10.80$54.00 / 5mg
- Purity
- —
- Price per mg
- $4.20$42.00 / 10mg
- Purity
- —
- Price per mg
- $2.30$46.00 / 20mg
BioviridianTier A-tested
- Purity
- 99.62%
- Price per mg
- $6.35$127.00 / 20mgbest of 2 sizes
- Purity
- —
- Price per mg
- $2.50$50.00 / 20mg
- Purity
- —
- Price per mg
- $2.30$46.00 / 20mg
- Purity
- —
- Price per mg
- $2.30$46.00 / 20mg
- Purity
- —
- Price per mg
- $2.30$46.00 / 20mg
- Purity
- —
- Price per mg
- $2.55$51.00 / 20mg
- Purity
- —
- Price per mg
- $2.30$46.00 / 20mg
- Purity
- —
- Price per mg
- $2.30$46.00 / 20mg
BioviridianTier A-tested
- Purity
- 99.66%
- Price per mg
- $3.40$34.00 / 10mg
BioviridianTier A-tested
- Purity
- 99.77%
- Price per mg
- $4.60$46.00 / 10mg
- Purity
- —
- Price per mg
- Out of stock
- Purity
- —
- Price per mg
- Out of stock
- Purity
- —
- Price per mg
- Out of stock
- Purity
- —
- Price per mg
- Out of stock
- Purity
- —
- Price per mg
- Out of stock
- Purity
- —
- Price per mg
- Out of stock
- Purity
- —
- Price per mg
- Out of stock
- Purity
- —
- Price per mg
- Out of stock
- Purity
- —
- Price per mg
- Out of stock
- Purity
- —
- Price per mg
- Out of stock
Learn more about what NextGen Peps carries
NextGen Peps: Frequently Asked Questions
Is NextGen Peps legit?
NextGen Peps scores 5.95 out of 10 (Fair, #61 of 100) as of November 3, 2026 and passes our testing gate: 33 of the 58 products we score carry a certificate, 33 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is pricing (8.0/10); its weakest is operating history (2.3/10), with over a year of records.
Is there a NextGen Peps promo code, coupon code, or discount code?
Yes. NextGen Peps issued us the reader code PSR10 for 10% off. Enter this NextGen Peps promo code at checkout to claim the discount. If it stops working at checkout, tell us and we will update or remove it.
Does NextGen Peps use third-party lab testing?
Yes. We have independently verified third-party COA evidence for this vendor. Laboratories on the certificates we hold: Bioviridian, Janoshik Analytical, BioRegen.
Where can I see NextGen Peps' COAs?
In the "NextGen Peps COAs and lab test results" table on this page. We hold 33 certificates for NextGen Peps, covering 33 of the 58 products we track, issued by 3 laboratories (Bioviridian, Janoshik Analytical, BioRegen). 33 products' certificates were confirmed at the issuing laboratory itself. Each row links the certificate, its lab, its test date and the purity it reports.
What peptides does NextGen Peps carry?
NextGen Peps carries BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin, Semax, Selank, Melanotan-2, and 50 more. Current per-milligram pricing, COA links, and verification keys for each are in the comparison table on this page.
Is the NextGen Peps review on Peptide Source Review affected by affiliate status?
No. All affiliate relationships are publicly disclosed and never change a vendor's score, rank, or gate status. Our scoring formula is published in full and applied identically to every vendor.
Want to understand how this score was built?
Read the full methodology or the editorial integrity policy. Disclosure: the link below is an affiliate link; it never affects the score.
NextGen Peps5.95Fair
33 confirmed at the labAffiliate link