About Pure Peptide Labs
US (Texas) research-peptide store run by named owners Mark & Lisa Collier, with fast free shipping and a large 5-star Trustpilot pile, but the reviewed .com domain is now dead (operation migrated to purepeptidelabs.shop plus mirrors) and testing is unverifiable: >99% HPLC claimed with no lab named and no independent COA openable.
Score overview
How we score →Weighted composite across 8 criteria; the letter grade follows our published bands and integrity gate.
Key facts
Pros
- Named human owners (Mark & Lisa Collier, Texas), working legal/refund/contact pages, and clear research-use-only labeling, which is more transparent than the anonymous norm
- Fast, free, tracked US shipping (same-day before 12pm CST, free overnight over $300) with a complimentary bacteriostatic water vial, and at/below-market public pricing
Cons
- No independent third-party COA could be opened and no testing lab is ever named (only generic 'third-party tested / COA included' copy), so >99% purity is vendor-claimed and unverifiable
- Candidate domain purepeptidelabs.com is dead (NXDOMAIN) with the store migrated to purepeptidelabs.shop plus look-alike mirrors (.fit, .net), and its ~1,500 five-star Trustpilot reviews on a ~19-month domain are inflation-suspect (Scam Detector flags the site 'Questionable', 53.5/100)
Is Pure Peptide Labs legit? Common questions
Is Pure Peptide Labs a legit peptide vendor?
Pure Peptide Labs scores 47.7/100 (F). Because we could not verify an independent third-party COA, its grade is capped under our integrity gate, treat purity and quality claims with caution until independent testing is provided.
Does Pure Peptide Labs provide third-party lab testing?
No independent third-party COA was on file at our last review. Without external lab verification we cannot confirm what is in the vial, and the grade is capped.
Where does Pure Peptide Labs ship to and how fast?
Pure Peptide Labs reports shipping to United States, typically in around Free same-day (orders before 12pm CST) / free overnight over $300; US-only; fast per reviews.
What payment methods does Pure Peptide Labs accept?
Pure Peptide Labs accepts card.
When was this Pure Peptide Labs review last updated?
This grade was last reviewed on 2026-07-04 under methodology v1.0.
A slick, owner-named, fast-shipping Texas store that markets hard (personal story, childhood-cancer donation, permanent sales) and prices at/below market, but with no independent COA and no third-party lab ever named its purity claims are unverifiable, its candidate .com domain is dead with the shop moved to .shop and look-alike mirrors, and its ~1,500 five-star reviews are inflation-suspect on a ~19-month domain that a Scam Detector scan flags as questionable. With no independent testing the record caps at a borderline C-/D+.
Our labelled opinion, based on the dated evidence in the score overview. See how we score.
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Grades reflect vendor reliability only, not the safety, efficacy, or legality of any product. Nothing here is medical advice.