About 405peptides

We started 405 Peptides with one frustration: good research compounds shouldn't be hard to find or impossible to afford.

The peptide supply space is crowded with vendors who overprice, under-document, and make researchers jump through hoops just to verify what they're buying. We built 405peptides to be the opposite of that.

What we stand for:

• 🧪 Third-party tested, every batch. Every product we carry is independently verified for purity and identity. You can view the Certificates of Analysis (COAs) directly on our site, no digging, no requesting, no waiting.

• 💰 Affordable without cutting corners. Research-grade quality doesn't have to come with an inflated price tag. We keep our margins lean so your budget goes further.

• 📦 Fast, discreet shipping. We ship fast with secure, research-appropriate packaging. Your order moves quickly.

• 🔬 For researchers, by researchers. Every product decision we make starts with one question: what does the research community actually need?

Our commitment to transparency

We don't hide behind vague quality claims. Our COAs are publicly posted, our sourcing is consistent, and our compliance posture is built to protect both our customers and the integrity of legitimate research. We operate strictly as a chemical supplier, all products are intended for laboratory research use only.

Questions? We're here.
Reach us at info@405peptides.com or sales@405peptides.com

Trusted

Quality

All products sold by 405 Peptides are intended for laboratory research purposes only. Not for human or veterinary consumption. Not for use as a drug, food, dietary supplement, cosmetic, or medical device. These products have not been evaluated by the FDA.