53
OF 100
VENDOR AUDIT
Core Peptides
156 Vanguard records from three lab orders, a KPV lot at 59.35% purity, an IGF-1 LR3 vial at 42% of label, and 42 shop PDFs missing quantity. 53/100.
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VENDOR MATCHUP · AUDITED
Core Peptides vs Summit Biotech
Two audits, side by side. Composite, subscores, shipping, payment, coupons. Summit Biotech takes the higher composite this cycle.
Composite score
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 METRICSMETRIC
CORE PEPTIDES
SUMMIT BIOTECH
Composite · weighted avg
53/100
vs
55/100
Purity / COA
45/100
vs
70/100
Shipping · stated domestic days
2.0d
vs
5.0d
Pricing
55/100
vs
95/100
Support
55/100
vs
40/100
Last reviewed
2026-10-10
vs
2026-05-09
Payment
card, ach, crypto
vs
crypto, card
Catalog overlap
ONLY CORE PEPTIDES
nad-plusipamorelincjc-1295sermorelinepitalonaod-9604kpvdsipsemaxselankmelanotan-2
BOTH
bpc-157tb-500ghk-cumots-ctesamorelin
ONLY SUMMIT BIOTECH
retatrutidetirzepatidesemaglutidecagrilintide