home / vendors / leolabs

LEOLABS Review

7.6 / 10

Ranked #1 of 13 verified vendors

Reviewed by the Peptides SA Editorial Team · Last verified 2026-09-06

LEOLABS (leolabs.co.za (opens in new tab)) is a South Africa-facing peptide retailer that, by its own site, has operated since 2018. Out of thirteen vendors we've checked so far, it has the most specific, independently-checkable documentation trail — which is why it leads our ranking. One other vendor, Peptide Labs South Africa, also names Janoshik as its lab, but without LEOLABS's per-product report links.

What we verified directly

What "verified" doesn't mean here: we followed LEOLABS's report links to janoshik.com, which redirects to a verification subdomain that blocked our automated check (HTTP 403 — consistent with a real portal guarding against scraping, not evidence either way). So: LEOLABS provides a specific, checkable link for each product; we could not ourselves confirm what's on the other end of that link. Treat this as "far more specific and checkable than any competitor," not as "independently audited." One small inconsistency: the lab's name is spelled "Janoshik" in most places but "Janosik" on several other pages we found in the 2026-09-06 crawl — worth being aware of if you're searching for it yourself.
New (2026-09-06): dosing guides sit oddly next to the "not for human consumption" disclaimer. LEOLABS's /about-us page states its products "are not for human consumption, medical use, diagnostic use, or resale." But its blog hosts detailed self-injection dosing schedules for human use — e.g. a Tirzepatide dosing guide with specific week-by-week mg amounts and injection volumes, plus similar guides for Retatrutide and Semaglutide. Publishing human dosing protocols alongside a "not for human consumption" disclaimer is a real tension worth knowing about, even though it's a marketing/content issue rather than a documentation one. Its /about-us page also has several section headers ("Our Vision," "Our Mission," "Our Core Values," "Our Culture") with no content underneath — an unfinished page. Its support email, support@leolab.co.za, also doesn't match its own domain (leolabs.co.za, plural) — a minor but genuine inconsistency.

Where it loses points

Score breakdown

Score breakdown for LEOLABS across eight weighted criteria
CriterionWeightScore
Documentation (named lab, batch refs)25%23/25
Business transparency15%8/15
Shipping & delivery15%14/15
Pricing transparency10%8/10
Assortment / range10%9/10
Refunds & guarantees10%5/10
Reputation & reviews10%5/10
Site & support experience5%4/5

Bottom line

LEOLABS earns the top spot on documentation specificity, not on being audited or endorsed by us. If you're comparing SA peptide vendors on paperwork alone, it's currently the strongest case we've found. See our full methodology for how every vendor is scored the same way.

Regulatory note: the peptides LEOLABS and similar vendors sell are not SAHPRA-registered medicines. This review describes what the vendor publishes about its own operations — it is not medical advice and not an endorsement of using these products.
Visit leolabs.co.za (opens in new tab)

Sources: leolabs.co.za (homepage, /peptide-tests/, footer, /terms-and-conditions/, /privacy-policy/, /contact-us/, /peptides/bpc-157, /peptides/tirzepatide, /about-us, /test-result archive, blog dosing-guide pages) — fetched 2026-09-03, re-verified 2026-09-04 and 2026-09-06 (including a full site crawl). See the affiliate disclosure.