20% off your first orderwith code WELCOME20
Research peptides you can verify before you buy.
Every lot is tested by ILS Laboratories in San Diego. Weekday orders by 1 PM Pacific ship the same day.
For research use only. Buyers must be 21+.
- 99.67% average purity23 of 23 peptide lots above 99%
- Same-day dispatchWeekday orders by 1 PM Pacific
- Free US shippingOn orders over $100
- Lost or damaged in transitWe replace it
Prices in USD. The catalog opens after a quick 21+ check.
Every lot is tested in San Diego.
ILS Laboratories (ISO/IEC 17025) checks HPLC purity, identity, net peptide content, endotoxin and a contaminant screen. The lot number on your vial matches its report.
- peptide lots above 99% purity
- 23 of 23
- average purity across those lots
- 99.67%
- our lowest result, published like all the others
- 99.08%
Check a report yourself
- 1
Find the lot number on your vial. It is printed on the label, for example LOT QP-2608-013.
- 2
Open the report for that lot. Every product on this page links to its latest one.
- 3
Confirm it on the lab's own site. Scan the QR code on the report, or go to portal.ils-lab.com and enter the access code printed under it.
Buy 5, save 10%. Buy 10, save 15%.
Volume pricing applies when you buy 5 or 10 of the same vial.
- 1 vial$35
- 5 vialsSave 10%
- 10 vialsSave 15%
Questions
More in the full FAQ.
How does WELCOME20 work?
Enter WELCOME20 at checkout for 20% off your first order. It works once per customer.
When will my order ship?
Orders placed by 1 PM Pacific (4 PM Eastern), Monday to Friday, ship the same day. Saturday dispatch is not guaranteed. US shipping is free on orders over $100. Shipping policy
How do I check a lab report?
Each vial label carries a lot number that matches its report. Every report has a QR code and an access code, so you can verify it on ILS Laboratories' own site.
What does the lab test?
For every lot: HPLC purity, identity by HPLC retention time, net peptide content, endotoxin (USP <85>) and a contaminant screen.
What if my parcel is lost or damaged?
We replace it. Read the delivery guarantee
Who can order?
Buyers must be 21 or older. Every product is for research use only. Not for human or veterinary use, and not evaluated by the FDA. You can pay by card, Apple Pay or Google Pay.
Your first order is 20% off.
Use code WELCOME20 at checkout. Once per customer, on your first order.