vialauditThe Roundup

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VENDOR MATCHUP · AUDITED

Loti Labs vs Summit Biotech

Two audits, side by side. Composite, subscores, shipping, payment, coupons. Loti Labs takes the higher composite this cycle.

Composite score

HIGHER COMPOSITE
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.

vs
55
OF 100
VENDOR AUDIT

Summit Biotech

Operator received an FDA warning letter on December 10, 2024 as "Summit Research Peptides," then rebranded to Summit Biotech without disclosing the prior identity on the new site. Login-walled catalog, code-name SKUs for the FDA-cited compounds, and the cheapest per-mg pricing in our seven-vendor index on Tirzepatide, Retatrutide, and Semaglutide. ~90% of COAs are real Janoshik public-database links.

Subscore breakdown

7 METRICS
METRIC
LOTI LABS
SUMMIT BIOTECH
Composite · weighted avg
70/100
vs
55/100
Purity / COA
58/100
vs
70/100
Shipping · domestic days
3.0d
vs
5.0d
Pricing
76/100
vs
95/100
Support
70/100
vs
40/100
Last tested
2026-05-20
vs
2026-05-09
Payment
card, crypto, ach
vs
crypto, card

Catalog overlap

ONLY LOTI LABS
cjc-1295ipamorelinmk-677epitalon
BOTH
retatrutidetirzepatidesemaglutidecagrilintidebpc-157tb-500mots-c
ONLY SUMMIT BIOTECH
ghk-cutesamorelin

Other matchups

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