US-synthesized · Third-party tested with COAs · Free 3-day shipping over $150 — Shop now
For Research Use Only · Not for human or veterinary consumption · Not a drug
Pure Peptides. Verified Standards.

The purest peptides on the market.

Our own supply — ≥99% purity, third-party tested, lot-traceable, and US-fulfilled, with a COA on every order.

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≥99% Purity Third-Party Tested COA Verified US Fulfilled
≥99% Purity
Every lot, HPLC-verified
Third-Party Tested
Independent HPLC & MS
COA Every Order
Lot-matched certificate
US Fulfilled · 3-Day
Tracked shipping
Our peptides

Shop the PeptSafe line

Pick your vial size. Subscribe for 15% off every shipment.

Lab testing

Why third-party testing matters

Every PeptSafe lot is verified by an independent laboratory before it ships.

Independent verification

Testing is performed by an outside lab with no stake in the result — identity by mass spec, purity by HPLC.

Full transparency

Each vial carries a lot number tied to its certificate of analysis, included in the box and on the product page.

One standard, every lot

Our own supply, synthesized in-house to ≥99% purity — never repackaged or anonymously sourced.

The PeptSafe purity guarantee

If any product doesn’t match the purity documented on its certificate of analysis, we’ll replace it or refund you in full. Every lot is independently tested before it ships, and the COA comes with your order so you can verify it yourself.

Customer reviews

What our customers say

Verified feedback on product quality, support, and shipping.

FAQ

Frequently asked questions

How pure are PeptSafe peptides?
Every batch is made to ≥99% purity and confirmed by an independent lab (HPLC for purity, mass spec for identity). Your lot’s exact result is on its COA.
Do you make your own product?
Yes — our own supply, one standard. Never drop-shipped, repackaged, or anonymously sourced.
Can I see lab results?
Yes. Each product page links its certificate of analysis, and the COA ships in the box. The lot on the vial matches the lot on the certificate.
How does Subscribe & Save work?
Choose Subscribe on any product for 15% off every shipment, auto-restocked on your schedule. Skip a shipment or cancel anytime from your account.
How fast will my order arrive?
Order before 2pm ET and it ships the same day from the US — tracked, about 3 business days. Free over $150.
Do you provide usage or dosage guidance?
No. All products are for laboratory research use only, and we don’t provide usage, handling-for-use, or dosage guidance of any kind.
What does “Research Use Only” mean?
All products are sold strictly as reference materials for laboratory research — not for human or animal consumption, and not for diagnostic or therapeutic use. By ordering you confirm you’re a qualified researcher.
What’s your return policy?
Returns are accepted for damaged or incorrect shipments. Because of the nature of the products, all other sales are final. If anything arrives wrong, contact support and we’ll make it right.

Pure peptides, made to a single standard. Independently tested, lot-traceable, and US-fulfilled.

For Research Use Only. All products sold by PeptSafe are intended strictly for laboratory research and development. They are not drugs, supplements, cosmetics, or food, are not intended for human or animal consumption, and are not intended to diagnose, treat, cure, or prevent any disease. “Pure,” “verified,” and “safe” refer to PeptSafe’s purity, testing, and documentation standards, not to biological safety or efficacy. By purchasing, you certify that you are a qualified researcher and that products will be handled by appropriately trained personnel under applicable laws. © PeptSafe.com · All rights reserved.