Peptides,
considered in full.
CREW LABS is a quiet study in bioregulatory chemistry — third-party assayed, and offered without the noise of the rest of the category.
HPLC verified
Peptides,
considered in full.
CREW LABS is a quiet study in bioregulatory chemistry — third-party assayed, and offered without the noise of the rest of the category.
No proprietary blends
Per-batch certificate of analysis
HPLC 99% verified
Per-batch certificate of analysis
HPLC 99% verified
/ 01 The Catalogue
A small, deliberate selection. Each product third-party verified.
Lab Supplies
From £3.74
This product has multiple variants. The options may be chosen on the product page
Multi-Compound Preparations
From £37.49
This product has multiple variants. The options may be chosen on the product page
Out of stock
Small Molecule Compounds
From £89.99
This product has multiple variants. The options may be chosen on the product page
Cofactors & Metabolites
From £52.49
This product has multiple variants. The options may be chosen on the product page
Peptide Reference Standards
From £32.24
This product has multiple variants. The options may be chosen on the product page
Multi-Compound Preparations
From £71.24
This product has multiple variants. The options may be chosen on the product page
Peptide Reference Standards
From £43.49
This product has multiple variants. The options may be chosen on the product page
Peptide Reference Standards
From £28.49
This product has multiple variants. The options may be chosen on the product page
Peptide Reference Standards
From £26.24
This product has multiple variants. The options may be chosen on the product page
/ 03 Principles
Three standards we won’t move on.
/ 04 COA Library
Every batch, on the record. Always.
Most sellers publish one report and leave it there while the stock behind it turns over. We file a certificate against every lot, so the report you open is the one for the vial in your hand.
- Find it by lot number
- Every lot on the record
- Analysed before release
Everything we claim, you can check.
The research compound market runs on assertions that buyers have no way to verify. Purity figures with no report behind them, certificates that belong to a different lot, and support that stops answering once the order ships. We would rather be judged on the things you can confirm for yourself, so here is what we do and what the market typically does.
| Criterion | Crew Labs | Other sellers |
|---|---|---|
| Lot-specific COA on the product page | Yes | Varies |
| Certificate searchable by lot number | Yes | Rarely |
| Every compound named, quantity stated | Yes | Varies |
| Cold-chain packing, lab to letterbox | Yes | Varies |
| Tracked delivery with an order reference | Yes | Varies |
| Published returns policy & named contact | Yes | Varies |
Comparison reflects practices commonly observed across the research compound market. It is not a statement about any named supplier. All material is supplied for laboratory research use only.
“Good research starts with knowing what you’re working with. That’s what the certificate gives you — and it’s why we lead with it.”
— CREW LABS · Founding Note, 2026
Quiet dispatches
from the lab.
One letter a month — new assays, new writing, new drops. No noise, unsubscribe in a click.