vialauditThe Roundup

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VENDOR MATCHUP · AUDITED

POWERpepsUSA vs Summit Biotech

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

Composite score

HIGHER COMPOSITE
64
OF 100
VENDOR AUDIT

POWERpepsUSA

New US shop on a WooCommerce storefront, domain registered April 2026, selling 22 research compounds with unusually complete certificates: full panels on 17 of 21 products, mostly from Optiq Health Labs, a real California lab. None of it is in our independent mirrors, two certificates come from an unverifiable lab, pricing runs well above our index on several staples, and payment is Venmo or Zelle only. Retatrutide is sold under its real name and we found no FDA action. Public-data audit, no first-hand order, 64/100.

vs
55
OF 100
VENDOR AUDIT

Summit Biotech

Held for reference, not a current recommendation. The link we drew from the December 2024 FDA warning letter to "Summit Research Peptides" to the current Summit Biotech site is an inference, not a record - the letter names summitpeptides.shop, while summitbiotechusa.com was registered months later; the only hard tie is a same-name domain that 301-redirects to it. The catalog is login-walled, our data is from May 2026, and there is no independent buyer record, so readers cannot re-check anything. We have removed it from the ranked vendor list.

Subscore breakdown

7 METRICS
METRIC
POWERPEPSUSA
SUMMIT BIOTECH
Composite · weighted avg
64/100
vs
55/100
Purity / COA
65/100
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
2026-10-13
vs
2026-05-09
Payment
venmo, zelle
vs
crypto, card

Catalog overlap

ONLY POWERPEPSUSA
ipamorelinss-31nad-plus
BOTH
bpc-157tb-500ghk-cumots-cretatrutide
ONLY SUMMIT BIOTECH
tirzepatidesemaglutidetesamorelincagrilintide

Other matchups

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