Independent vendor review · 2026

NuScience Peptides Review

Scored 6.43/10 on the published Peptide Source Review formula: lab credibility, shipping, pricing, operating history, and transparency.

Reviewed by the Peptide Source Review teamLast audited How we rate

COAs on file
17

COAs on file

Confirmed at the lab
15

Confirmed at the lab

Products
17

Products

Labs
3

Labs

6.43/ 10

Fair

Last scored

No testing cap

Weights are fixed for every vendor. Select a row to see how it was scored.

Is NuScience Peptides legit?

NuScience Peptides scores 6.43 out of 10 (Fair, #51 of 100) as of November 2, 2026 and passes our testing gate: all 17 products we score carry a certificate, 15 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is pricing (7.8/10) and its weakest is transparency (1.5/10); its operating history on record covers over three years.

On lab evidence, the heaviest-weighted factor, NuScience Peptides has independently verified third-party COAs, with COA work on record from Freedom Diagnostics Testing, Chromate, MZ Biolabs. Its lowest price per milligram in our data is on GHK-Cu (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 credibility7.2/10

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-1579.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-07-23

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Endotoxin test
    • +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
    • +0.5Purity 99.74% (99.7% or higher)
  • TB-5008.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-03-20

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.45% (99.0% up to but not including 99.7%)
  • GHK-Cu9.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-05-28

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
    • +0.5Purity 99.92% (99.7% or higher)
  • CJC-12956.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-01-02

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • −1.5Purity 98.657% (97.0% up to but not including 99.0%)
  • Ipamorelin8.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-07-17

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Purity 99.86% (99.7% or higher)
  • Semax8.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-05-28

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.11% (99.0% up to but not including 99.7%)
  • Selank6.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-03-05

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • 0.0Key printed but not found at the laboratory (no confirmed points; no other deduction)
    • 0.0Purity 99.557% (99.0% up to but not including 99.7%)
  • Melanotan-28.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2025-11-01

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.562% (99.0% up to but not including 99.7%)
    • −0.118Age: more than 12 months old, so 0.25 × 8.0 ÷ the weighted product count comes off the mean (AGE below)
  • Sermorelin8.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-03-05

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Purity 99.912% (99.7% or higher)
  • Epitalon9.0

    Certificate from Freedom Diagnostics Testing, tier A · first seen 2026-09-24

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Sterility test (USP <71> or a PCR / rapid sterility screen)
    • +0.5Purity 99.88% (99.7% or higher)
  • AOD-96048.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-20

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.437% (99.0% up to but not including 99.7%)
  • 5-Amino-1MQ8.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2025-09-30

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Purity 99.741% (99.7% or higher)
    • −0.125Age: more than 12 months old, so 0.25 × 8.5 ÷ the weighted product count comes off the mean (AGE below)
  • IGF-1 LR38.5

    Certificate from Chromate, tier B+ · tested 2025-06-16

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier B+ (Chromate)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • +0.5Purity 99.993% (99.7% or higher)
    • −0.125Age: more than 12 months old, so 0.25 × 8.5 ÷ the weighted product count comes off the mean (AGE below)
  • GHRP-28.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-20

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.394% (99.0% up to but not including 99.7%)
  • GHRP-68.0

    Certificate from Freedom Diagnostics Testing, tier A · tested 2025-12-20

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • 0.0Purity 99.534% (99.0% up to but not including 99.7%)
  • Hexarelin6.5

    Certificate from Freedom Diagnostics Testing, tier A · tested 2026-03-05

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (Freedom Diagnostics Testing)
    • +1.5Verification key printed
    • +1.5Key confirmed at the laboratory's own site
    • −1.5Purity 97.024% (97.0% up to but not including 99.0%)
  • Cagrilintide5.5

    Certificate from MZ Biolabs, tier A · tested 2024-07-23

    • 3.0Certificate published (base)
    • +2.0Laboratory in our directory at tier A (MZ Biolabs)
    • +0.5Purity 99.78% (99.7% or higher)
    • −0.081Age: more than 12 months old, so 0.25 × 5.5 ÷ the weighted product count comes off the mean (AGE below)

Mean of 17 products: 134.5 ÷ 17 = 7.912.

  • −0.449AGE Certificates older than 12 months: 4 scored certificate(s) older than 12 months: mt-2 2025-11-01, 5-amino-1mq 2025-09-30, igf-1-lr3 2025-06-16, cagrilintide 2024-07-23
  • −0.20LOT Lot numbers that do not identify a single batch (cap −0.2): lot 000256 on BPC-157, MT-II, sermorelin, GHK-Cu, GHRP-2, PT-141, CJC/Ipa; 000176 on TB-500, ACE-031, BPC/TB, IGF-1
  • −0.10CLAIM Claims the certificates do not support (cap −0.3): hexarelin and CJC-1295 DAC pages state 'Purity: >=99% by HPLC' (certificates 97.024%, 98.657%)

7.912 − 0.749 = 7.163, rounded to 0.1: 7.2/10.

Testing gate: 15 of 17 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

Total +5: 5.0/10.

Pricing7.8/10

We compared NuScience Peptides’s current single-vial prices on 17 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 11% below the market median (ratio 0.89), which the published scale maps to 7.8/10. checked

Operating history4.5/10

Counted from May 12, 2023, the earliest dated evidence of this business operating: 3.4 years as of October 22, 2026, which the published table maps to 4.5/10.

Store domain nusciencepeptides.com registered 2023-05-12 (RDAP); its first archived capture (2023-06-28) is already the NuScience store, with nothing parked or for sale in between, so the domain date counts. The site names no operating company.

Transparency1.5/10

Total +1.5: 1.5/10.

  • Lab evidence: on 2 November 2026 the melanotan II certificate (reported 1 November 2025) was re-confirmed at Freedom Diagnostics and is still the newest one posted for that product; it passed 12 months on 1 November 2026, so the A6 age deduction now covers four products (melanotan II, 5-amino-1MQ, IGF-1 LR3, cagrilintide) and the lab subscore moved from 7.3 to 7.2.
Third-party tested: VerifiedLabs: Freedom Diagnostics Testing, Chromate, MZ BiolabsProducts tracked: 17

Shop NuScience Peptides

  • Rated 6.43/10 · Fair
  • 15 COAs confirmed at the issuing lab
  • Best value: GHK-Cu at $0.80/mg
Visit NuScience Peptides → (opens in new tab)

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

  1. Most recent audit · 6.49to6.43

    Lab evidence re-checked on 2 November 2026. The melanotan II certificate (Freedom Diagnostics, reported 1 November 2025) passed 12 months old and is still the newest one the company posts for that product, so under the published age rule (A6) it now counts as an older certificate, alongside those for 5-amino-1MQ, IGF-1 LR3 and cagrilintide. The certificate itself was re-confirmed at the laboratory. Lab evidence 7.3 to 7.2.

  2. Audit · 6.47to6.49

    Pricing recomputed on 26 October 2026: a vendor was removed from the directory, which moved the market median for the same products: pricing 7.7 to 7.8.

  3. Audit · 6.49to6.47

    Pricing recomputed on 24 October 2026 after Bionova Peptides' first-review prices were recorded; other vendors move only through the market medians: pricing 7.8 to 7.7.

Earlier audits (8)
  1. Audit · 6.48to6.49

    Operating history re-checked on 22 October 2026 under the published rule (earliest dated evidence of the business, including a never-parked store domain and the named operating company, looked up for every vendor): operating history 4.3 to 4.5.

  2. Audit · 6.78to6.48

    Re-scored on 22 October 2026 under the published rulebook, which now gives one rule for each judgement call and applies it to every vendor: shipping and refunds 6.5 to 5.0.

  3. Audit · 6.67to6.78

    Re-scored on 22 October 2026 under version 2 of our published rules. The deduction for verification codes the laboratory could not find was retired: each such certificate now keeps its points for the printed key and earns none for confirmation, and codes on certificates we do not score no longer count. Lab 7.1 to 7.3. Score 6.67 to 6.78.

  4. Audit · 6.49to6.67

    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 6.5, pricing 7.7 to 7.8, operating history 4.0 to 4.3, transparency 2.5 to 1.5.

  5. Audit · 6.65to6.49

    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, one lot number printed on certificates for different compounds, site statements about testing that the certificates do not bear out and verification codes the issuing laboratory could not find. Lab 7.4 to 7.1.

  6. Audit · 6.54to6.65

    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 17 of the 17 products we list that the vendor offers for sale. Lab 7.2 to 7.4.

  7. Audit · 7.13to6.54

    Re-audited 2026-10-18 from the live site. Lab 7.12 to 7.2: 36 Freedom Diagnostics and Chromate reports confirmed at the laboratories, with 34 posted files identical to the laboratory copies, offset by two image-only certificates that could not be matched, a 2024 cagrilintide report and limited endotoxin coverage; this replaces the May 2026 statement that the vendor published no certificates. Shipping 8.5 to 5.5: all sales are final and the terms disclaim responsibility for lost or damaged parcels when insurance is declined. Pricing 8.5 to 7.7: standard list prices measured at about 1.12 times the market median, and every product is shown at a markdown from a higher struck-through list price; a small deduction because the markdown is permanent. Tenure 3.3 to 4.0: the domain was registered in May 2023 and the earliest posted certificate is from July 2024. Transparency 1.5 to 2.5: phone, email, city and a public certificate library are given, but no operating company or street address appears on the site, and the FDA issued a warning letter on 24 August 2026. The products named in that letter have been removed from the catalog. Note added 22 October 2026: the deduction for a permanent markdown was withdrawn on 22 October 2026; a standing sale price now counts as the price.

  8. Audit · Verified, no change

    Added the FDA warning letter of 24 August 2026 (reference 733652), replacing an outdated statement that no letter had been identified.

Editor’s notes

NuScience Peptides publishes about fifty certificates on its lab results page, nearly all from Freedom Diagnostics, and they hold up well. Of the 32 files that print a search code, 30 were found on the laboratory's own site, and six image-only files that print no code match laboratory reports exactly; counting one Chromate report, 34 of the posted files are exact copies of the laboratories' own. Most cover identity, purity and measured content only. The newest BPC-157 and NAD+ reports add endotoxin and microbial screens, and a few others add a microbial screen. Purity on recent lots mostly runs above 99%, with CJC-1295 with DAC at about 98.7%. Weaker spots: the Selank certificate is an image we could not match to the laboratory, the AOD-9604 certificate matched the laboratory's own copy on 22 October 2026 though the posted copy reads 5mg where the lab copy reads 10mg, the cagrilintide report dates from 2024, and several are close to a year old. The FDA sent the company a warning letter in August 2026 covering nine listings, including its GLP-1 products, PT-141 and tesamorelin, and those products are no longer on the site. The home page advertises same-day dispatch before noon Eastern, while the terms say orders are processed within one to three business days; all sales are final and the terms disclaim responsibility for lost or damaged parcels without naming a remedy. Every product is shown at a standing markdown from a higher list price; at the prices buyers pay, it runs a little below the market median. The site gives only a city and a phone number, and the domain dates from 2023. As of October 2026, all 17 products we list have a posted certificate and 15 of them match the laboratory's own records; the Selank code returned no record, the cagrilintide report from 2024 carries no code, and three certificates are more than a year old.

NuScience Peptides 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).

BPC-157Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.74%
Price per mg
$5.45$109.00 / 20mgbest of 3 sizes
TB-500Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.45%
Price per mg
$7.50$74.99 / 10mgbest of 2 sizes
GHK-CuVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.92%
Price per mg
$0.80$79.99 / 100mgbest of 2 sizes
CJC-1295Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
98.657%
Price per mg
$11.00$54.99 / 5mg
IpamorelinVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.86%
Price per mg
$7.00$69.99 / 10mgbest of 2 sizes
SemaxVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.11%
Price per mg
$3.50$34.99 / 10mg
SelankView COA (key not found at lab) (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.557%
Price per mg
$4.50$44.99 / 10mg
Melanotan-2Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.562%
Price per mg
$3.00$29.99 / 10mg
SermorelinVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.912%
Price per mg
$8.60$42.99 / 5mg
EpitalonVerified (opens in new tab)

Freedom Diagnostics TestingTier Afirst seen

Purity
99.88%
Price per mg
$4.50$44.99 / 10mg
AOD-9604Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.437%
Price per mg
$7.50$59.99 / 8mg
5-Amino-1MQVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.741%
Price per mg
$6.50$64.99 / 10mg
IGF-1 LR3Verified (opens in new tab)

ChromateTier B+tested

Purity
99.993%
Price per mg
$79.99$79.99 / 1mg
GHRP-2Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.394%
Price per mg
$3.50$34.99 / 10mg
GHRP-6Verified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
99.534%
Price per mg
$4.00$39.99 / 10mg
HexarelinVerified (opens in new tab)

Freedom Diagnostics TestingTier Atested

Purity
97.024%
Price per mg
$9.99$19.99 / 2mg
CagrilintideVerified (opens in new tab)

MZ BiolabsTier Atested

Purity
99.78%
Price per mg
$24.40$121.99 / 5mg

Learn more about what NuScience Peptides carries

Learn about BPC-157 →Learn about TB-500 →Learn about GHK-Cu →Learn about CJC-1295 →

Rated higher than NuScience Peptides, with a reader code

NuScience Peptides is not one of our affiliate partners, so we have no code for it. These partners score above it under the same published rules, pass our testing gate, and give readers a discount.

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

Ascension Peptides

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Honest Peptide

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Arctic Lab Supply

6.98/10 · Fair · carries 11 of the same products

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NuScience Peptides: Frequently Asked Questions

Is NuScience Peptides legit?

NuScience Peptides scores 6.43 out of 10 (Fair, #51 of 100) as of November 2, 2026 and passes our testing gate: all 17 products we score carry a certificate, 15 confirmed with the issuing lab (labs we grade A to B+). Its strongest area is pricing (7.8/10) and its weakest is transparency (1.5/10); its operating history on record covers over three years.

Is there a NuScience Peptides promo code, coupon code, or discount code?

We do not have a verified NuScience Peptides promo code or coupon code right now. When NuScience Peptides runs a sale or issues a discount code, we post it here and on our promos page, so bookmark this page for the latest NuScience Peptides discount.

Does NuScience Peptides use third-party lab testing?

Yes. We have independently verified third-party COA evidence for this vendor. Laboratories on the certificates we hold: Freedom Diagnostics Testing, Chromate, MZ Biolabs.

Where can I see NuScience Peptides' COAs?

In the "NuScience Peptides COAs and lab test results" table on this page. We hold 17 certificates for NuScience Peptides, covering 17 of the 17 products we track, issued by 3 laboratories (Freedom Diagnostics Testing, Chromate, MZ Biolabs). 15 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 NuScience Peptides carry?

NuScience Peptides carries BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin, Semax, Selank, Melanotan-2, and 9 more. Current per-milligram pricing, COA links, and verification keys for each are in the comparison table on this page.

Is the NuScience Peptides 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.

Visit NuScience Peptides → (opens in new tab)

NuScience Peptides6.43Fair

15 confirmed at the lab

Visit NuScience Peptides (opens in new tab)

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