Ranked by what matters to you · 2026 audit

Best Vendors For…

The overall score blends five factors, but sometimes one factor is the whole decision. These lists re-rank the 68 eligible vendors (fully scored, no testing gate) on a single dimension. Top 10 shown per list.

Eligible vendors
68

Eligible vendors

Ranked lists
3

Ranked lists

COA depth · named labs · verification

Best for Lab Results

Vendors with the strongest independently verified testing: named third-party labs, deep COA panels, working verification portals.

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

  1. 4Ascension Peptides9.10Shop → (opens in new tab)
  2. 5Southern Aminos9.00
  3. 6LabFirst Peptides8.90Shop → (opens in new tab)
  4. 7Felix Chemical Supply8.80
  5. 8Peptix USA8.70Shop → (opens in new tab)
  6. 9Modern Aminos8.70
  7. 10S1Research8.70

speed · tracking · reship policy

Best for Shipping Speed

Vendors with the fastest dispatch, reliable tracking, and refund/reship policies that actually hold up.

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

  1. 4DAAVY Research9.50Shop → (opens in new tab)
  2. 5Peptix USA9.00Shop → (opens in new tab)
  3. 6Prime Peptides9.00
  4. 7Pure Health Peptides8.50
  5. 8Loti Labs8.50
  6. 9Direct Peptides8.50
  7. 10NuuVive Peptides8.50

price per mg, quality-weighted

Best Value

Cheap and verified: value here is 60% pricing, 40% lab credibility, so a low price only ranks if the testing holds up.

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

  1. 4StudzPeptides8.78
  2. 5Amino Club8.78Shop → (opens in new tab)
  3. 6Peptix USA8.76Shop → (opens in new tab)
  4. 7Southern Aminos8.70
  5. 8Pure Health Peptides8.66
  6. 9Thrive Peptides8.58
  7. 10Zeptix Labs8.56Shop → (opens in new tab)

Best-for lists, explained

How are these best-for lists built?

Each list re-ranks the same eligible vendors on a single dimension instead of the blended overall score. "Best for Lab Results" and "Best for Shipping Speed" rank the relevant sub-score directly, with the overall score breaking ties. "Best Value" is a 60/40 blend of the pricing and lab sub-scores, so a low price only ranks if the testing holds up. The underlying data is identical to the main directory and the published methodology.

What makes a vendor eligible for these lists?

A vendor must be fully scored (all five subscores) and must have third-party testing we could independently verify. The testing gate is computed from certificates (rule A9): a vendor clears it when at least half of its scored products have a certificate whose key we confirmed at the issuing laboratory, a laboratory in our directory that is not tier D. Vendors below that line carry the gate and are left off these lists. A site that is offline does not set the gate: a store that is not taking orders keeps the scores and gate from its last full audit (rule F1). The gate records that testing could not be verified; it is not a finding of a quality or safety problem.

How often are the rankings updated?

Rankings update whenever a vendor's audit data changes. We re-score vendors on a rolling basis as new COAs, lab reports, and pricing information become available. The audit date for each vendor is shown on their individual review page. The "Recently updated" section on the homepage shows the six most recently re-scored vendors.

How these lists are built

Only vendors that are fully scored and carry no testing gate are eligible. A vendor whose third-party testing we couldn’t verify can’t appear here no matter how cheap or fast they are; the gate records that testing could not be verified, not a finding of a quality or safety problem. “Best for Lab Results” and “Best for Shipping Speed” rank the relevant sub-score directly (overall score breaks ties). “Best Value” is 60% pricing + 40% lab credibility. The underlying data is identical to the main directory and the published methodology.

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