About Peptide Crafters
US research-peptide seller (anonymous, ~2.4yr domain) with genuine per-lot third-party COAs from a named lab (MZ Biolabs) and a public LOT verification tool, independently corroborated at 99.5-99.95% purity by Finnrick.
Score overview
How we score →Weighted composite across 8 criteria; the letter grade follows our published bands and integrity gate.
Key facts
Pros
- Public per-LOT COA verification tool backed by a named third-party lab (MZ Biolabs, HPLC + LC-MS), with independent Finnrick testing corroborating 99.53-99.95% Semaglutide purity
- Transparent below/at-market pricing (BPC-157 10mg $55, TB-500 10mg $40, Sema 5mg $60), fast same/next-day tracked US shipping, and a card rail that provides chargeback recourse
Cons
- Fully anonymous operation – no named legal entity, founders, or address – on a domain only registered Feb 2024 (~2.4yr), with thin review volume and imitator domains muddying the brand
- COA lab omits USP <85> endotoxin and USP <71> sterility, independent testing showed dose accuracy scatter (-13.8% to +6.3% vs label), and no formal reship/money-back guarantee is published
Is Peptide Crafters legit? Common questions
Is Peptide Crafters a legit peptide vendor?
Peptide Crafters grades C+ (77.9/100), a mixed result. Weigh the pros, cons and the score overview before ordering.
Does Peptide Crafters provide third-party lab testing?
Yes, Peptide Crafters publishes independent third-party Certificates of Analysis via MZ Biolabs, which is the single most heavily weighted factor in our grade (Lab & Purity, 43%).
Where does Peptide Crafters ship to and how fast?
Peptide Crafters reports shipping to United States, typically in around 2-3 days.
What payment methods does Peptide Crafters accept?
Peptide Crafters accepts card, bank transfer.
When was this Peptide Crafters review last updated?
This grade was last reviewed on 2026-07-04 under methodology v1.0.
One of the stronger analytical packages in the niche: named-lab per-batch COAs, a working LOT lookup, and independent third-party purity confirmation at >=99.5%, all at below/at-market prices with fast tracked US shipping. Held back from top marks by fully anonymous ownership, a ~2-year-old domain, no endotoxin/sterility testing, and modest dose-accuracy scatter.
Our labelled opinion, based on the dated evidence in the score overview. See how we score.
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