70
OF 100
VENDOR AUDIT
Loti Labs
US peptide vendor (Sterling Path LLC) carrying retatrutide, tirzepatide, semaglutide plus healing peptides. Same-day shipping, four payment methods. Lab identity not named.
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VENDOR MATCHUP · AUDITED
Loti Labs vs Prime Research Peptides
Two audits, side by side. Composite, subscores, shipping, payment, coupons. Loti Labs takes the higher composite this cycle.
Composite score
vs
68
OF 100
VENDOR AUDIT
Prime Research Peptides
Aggressively priced US-listed catalog with full GLP-1 lineup (Retatrutide, Tirzepatide, Semaglutide), but the "Prime Research Peptides" brand is a hostname alias for Truform Compounds — same server, same WooCommerce instance, same page-title throughout. Editorial finding documented below. Pricing remains the strongest in our index for retatrutide on a per-mg basis; the credibility-relevant question is whether buyers know who they're actually buying from.
Subscore breakdown
7 METRICSMETRIC
LOTI LABS
PRIME RESEARCH PEPTIDES
Composite · weighted avg
70/100
vs
68/100
Purity / COA
58/100
vs
60/100
Shipping · domestic days
3.0d
vs
4.0d
Pricing
76/100
vs
90/100
Support
70/100
vs
65/100
Last tested
2026-05-20
vs
2026-05-09
Payment
card, crypto, ach
vs
crypto, card
Catalog overlap
ONLY LOTI LABS
cagrilintidecjc-1295ipamorelinmk-677epitalon
BOTH
retatrutidetirzepatidesemaglutidebpc-157tb-500mots-c
ONLY PRIME RESEARCH PEPTIDES
ghk-cutesamorelin