Alleen voor onderzoeksdoeleinden — de hier beoordeelde peptiden zijn niet bestemd voor menselijke consumptie. Peptscore is een onafhankelijk reviewplatform.
peptscore

How the PeptScore is calculated

Every vendor earns a single PeptScore grade from A to F. It is a weighted average of trust factors, with serious red flags capping the grade.

PeptScore grades

A

Excellent

85–100

B

Great

70–84

C

Good

55–69

D

Fair

40–54

E

Weak

25–39

F

Avoid

0–24

Lab/COA integrity

45%

Third-party COA verified

Independent lab (e.g. Janoshik) verifies the Certificate of Analysis. The single strongest trust signal.

20%

HPLC purity

Average tested purity %. 99%+ is excellent.

12%

COA available

Any Certificate of Analysis is provided to customers.

7%

Accredited lab partner

Testing performed by an accredited (e.g. ISO 17025) lab.

6%

Operational

25%

Domain age

Older domains are more established. 2+ years scores full.

8%

Shipping speed

Average delivery time. ≤3 days excellent, ≥21 days poor.

6%

Reship / guarantee policy

Vendor reships seized or lost packages.

4%

Batch traceability

Products carry batch numbers traceable to COAs.

4%

Payment methods

Card/escrow safer than crypto-only.

3%

Reputation

30%

Community reputation

Reddit / forum sentiment (manual 0–100 for MVP).

15%

User reviews

Average approved user rating on Peptscore.

10%

Editorial verdict

Our own hands-on editorial assessment.

5%

Red-flag overrides

Some issues are serious enough to cap the score regardless of other strengths. The lowest applicable cap always wins.

FDA raid / seizure reports / fake COACaps score at 15
Regulatory warningCaps score at 35
No COA availableCaps score at 40
Domain under 6 months oldCaps score at 50
Crypto-only payments−10 point penalty

Why a PeptScore can't be bought

Money never buys, raises, protects or restores a PeptScore or a ranking. A store can pay us to verifyits trust signals (independent COA & domain checks) and for presentation and reach — but verification only lets us confirm facts we otherwise can't credit. The full score is always reachable for free: supply verifiable data and your grade reflects it, whether you pay us or not. Featured placements are paid and clearly labelled, and never change a store's score or its position in the independent rankings.

Transparency matters to the score. When a store is unclaimed or its ownership, COA and shipping are opaque, those unknowns lower its transparency signals — not as a penalty for not paying, but because unverifiable claims are genuinely less trustworthy. Claiming (free) and supplying verifiable data is the cure.

Methodology v2 (2026). Weights and transparency signals are reviewed and tuned by our editorial team and may be adjusted per market. This page reflects the current global default weighting.