Research. Precision. Performance.

The lab-certified way to buy research peptides.

Raw Fit aggregates verified compounds from trusted manufacturers — every lot independently tested, every COA on the page.

In stock · ships today
Fat burners · GLP-1/GIP/GCG
Reta 60mg Pen — Dual-Chamber Cartridge

Triple-agonist retatrutide in a pre-filled dual-chamber pen with sterile water. Independently verified 99%+ purity.

Strength
60 mg / pen
Purity · HPLC
99.4%
Format
Dual-chamber pen
Lab
Janoshik · indep.
$399$359
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3rd-party lab tested COA on every product Same-day dispatch Cold-chain shipping
// The catalog

Real compounds.
Real certificates.

A curated selection from vetted manufacturers — priced transparently, tested before every ship.

Best seller
Fat burners
Reta 60mg Pen — Dual-Chamber
$359
Best seller
Fat burners
Tirze 75mg Dual Cartridge Pen
$339
Anti-aging
LL-37 25mg Kit (5×5mg)
$299
Peptides
TB-500 20mg Kit
$109
Peptides
BPC-157 20mg Kit
$83
Anti-aging
GHK-Cu 60mg Kit
$59
Peptides
AOD 9604 5mg
$31
New
Peptides
HGH Fragment 176-191 5mg
$29
// Verification, built in

Every lot arrives with its chromatogram.

We don't manufacture — we vet. Each brand clears an independent purity audit before it lists, and every lot is re-tested before it ships. The data lives on the page, not behind a paywall.

HPLC + mass-spec

Identity and ≥98% purity floor confirmed on every batch by an ISO-accredited lab.

Second-lab confirmation

A sample from each lot goes to a second independent lab. Both COAs ship in the box.

Cold-chain, tracked

Insulated, gel-packed, signature required. Overnight dispatch.

COA · RF-0824-RT10HPLCmass-spec
// Certificate of Analysis — retatrutide
compound: "Retatrutide (LY-3437943)",
lot: "RF-0824-RT10",
purity_hplc: 99.4,
mass_confirmed: true,
endotoxin_eu_mg: 0.12,
sterility: "pass · 14d TSB",
labs: ["Janoshik", "Colmaric"],
released: "2026-04-02"

46

Compounds from
vetted brands

98.7%

Mean lot purity
across the catalog

2×

Independent labs
per lot shipped

1k+

Orders fulfilled
since 2026

// How it works

From cart to first dose.

01

Pick a verified compound

Filter by goal. Open the COA before you buy — we never gate it.

02

Checkout, any way

Card, wallet, or crypto. Discreet plain-box billing.

03

Cold-chain delivery

Insulated, tracked, signature required. Tracking stays private.

04

Reconstitute & track

Built-in mg→IU calculator and protocol guides in your dashboard.

Start with a lot you can actually verify.

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