Strata

Advanced
Research
Peptides

Independently assayed, lot-traceable, and synthesized in the United States. Built for the people who read the certificate of analysis first.

Shop peptides →The science →
Lot 24-117 · LiveScroll ↓For research use only

A discipline,
not a category.

We make what we'd want to receive ourselves: small batches, full provenance, analytics you can read. No proprietary blends, no hand-waving.

01 — Synthesis

Solid-phase, single roof.

Every peptide is built in our United States lab on Liberty-class SPPS rigs. The chemists who ran the coupling are the ones who hand you the file.

02 — Verification

Two labs, one number.

Each lot is assayed in-house, then confirmed by an independent ISO 17025 lab. Both CoAs ship with the order. If the numbers disagree, it doesn't ship.

03 — Provenance

Traceable to the residue.

Scan the seal on the vial: synthesis date, run operator, mass-spec trace, residual solvent panel. Records are kept for ten years. Yours, on request.

Five compounds,
always in stock.

View all SKUs →
NewRT10Retatrutide vial

Retatrutide

$106
Metabolic10 mg vial
K80Klow vial

Klow

$245
Cellular80 mg vial
SX10Semax vial

Semax

$78
Cognitive10 mg vial
CJC10CJC-1295 / Ipamorelin vial

CJC-1295 / Ipamorelin

$89
Growth10 mg vial
SK10Selank vial

Selank

$78
Anxiolytic10 mg vial
§ Founder · Mara Lin
“We built Strata for the people who'd never accept a black-box vial — performance labs, research clinicians, and the investigators who quietly run their own protocols.”
Vial on clay
§ Quality

Layered
like the brand
it serves.

Every stratum verified, every layer documented. The certificate of analysis is on the product page before you buy — never after.

Identity
MS-confirmed. The molecule on the label is the molecule in the vial.
Purity
HPLC-confirmed on every lot. Each CoA is published, lot-keyed, and downloadable.
Sterility
Endotoxin and bioburden screened at fill — released only on pass.
Read the spec sheet →