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VENDOR MATCHUP · AUDITED

Limitless Biotech vs Summit Biotech

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

Composite score

47
OF 100
VENDOR AUDIT

Limitless Biotech

Lot-numbered certificates on its product pages, none in our lab mirrors; Finnrick passes 7 of 22 samples; an Ohio pharmacy-board case names it as a clinic's unlicensed DSIP source. Public-data audit, no first-hand order, 47/100.

vs
HIGHER COMPOSITE
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
LIMITLESS BIOTECH
SUMMIT BIOTECH
Composite · weighted avg
47/100
vs
55/100
Purity / COA
45/100
vs
70/100
Shipping · stated domestic days
5.0d
vs
5.0d
Pricing
60/100
vs
95/100
Support
55/100
vs
40/100
Last reviewed
2026-10-10
vs
2026-05-09
Payment
ach, wire
vs
crypto, card

Catalog overlap

ONLY LIMITLESS BIOTECH
aod-9604
BOTH
bpc-157tb-500ghk-cumots-cretatrutide
ONLY SUMMIT BIOTECH
tirzepatidesemaglutidetesamorelincagrilintide

Active coupons

15% off
Limitless BiotechVIAL15

15% off first order

USE CODE
No active coupon for Summit Biotech this cycle.

Other matchups

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