About SlavicLabs
Established (~3.8yr domain, 2022) Polish research-peptide brand run by a named legal entity, POLSKI ZIELARZ SP. Z O.O. (KRS 0000491422, Bialystok), with a real address, open at/around-market PLN pricing, per-product 98-99% HPLC purity claims, and a strong Trusted Shops record (4.86/5 over 216 reviews). No testing lab is named and no COA could be opened/verified, so testing stays unproven.
Score overview
How we score →Weighted composite across 8 criteria; the letter grade follows our published bands and integrity gate.
Key facts
Pros
- Named, long-standing Polish legal entity (POLSKI ZIELARZ SP. Z O.O., KRS 0000491422, ul. Strazacka 56 Bialystok) with physical address, phone and email, ~3.8-year-old domain (created 2022-09-13), valid SSL and no dark patterns – well above the anonymity norm and rated 'Very Likely Safe'
- Strong, sustained third-party reputation: Trusted Shops 4.86/5 across 216 reviews (188 in the last 12 months, ~93% five-star) praising fast shipping, quality and packaging; broad open-priced catalog at/around market with clear research-use-only labelling and per-product 98-99% HPLC purity claims
Cons
- Testing unproven: describes 'independent laboratory' HPLC testing and attaches a purity analysis per product, but names NO lab (no Janoshik/MZ Biolabs/etc.) and the COA PDFs could not be opened or verified this pass, so purity is vendor-claimed only (coa_status in-house, is_verified 0) – caps the grade at D+
- Only cryptocurrency payment confirmed (BTC/ETH/USDT via NOWPayments; card/BLIK likely but unverified), and no published reship/seizure guarantee
Is SlavicLabs legit? Common questions
Is SlavicLabs a legit peptide vendor?
SlavicLabs scores 64.8/100 (D). 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 SlavicLabs provide third-party lab testing?
Only in-house. SlavicLabs shows in-house testing but no independent third-party COA, so we cannot verify purity claims and the grade is capped accordingly.
Where does SlavicLabs ship to and how fast?
SlavicLabs reports shipping to Poland, typically in around ~48h domestic (Poland); peptide orders dispatched Mon-Thursday, free shipping from 100 PLN via Orlen Paczka / DPD.
What payment methods does SlavicLabs accept?
SlavicLabs accepts crypto.
When was this SlavicLabs review last updated?
This grade was last reviewed on 2026-07-04 under methodology v1.0.
A legitimate, well-established Polish vendor (real KRS entity, physical address, ~4yr domain, valid HTTPS, no dark patterns) with genuine third-party reputation (Trusted Shops 4.86/5, 216 reviews) and transparent market pricing. It publishes per-product 98-99% HPLC purity and claims independent lab testing, but names no lab and no COA could be opened or verified, so the testing case is unproven and the record is capped at a borderline D+ pending an openable independent COA.
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.