Cosmetic Peptide Raw Materials for Formulators

Who this site is for

Peptiraw exists for the person who writes the ingredient line on a formula sheet: the formulation chemist at a contract laboratory, the R&D lead at a skincare brand, the founder of an indie line who has outgrown retail-sized peptide solutions and now wants the powder itself with proper paperwork. The questions those buyers ask are consistent. Which exact molecule is in the jar, under which CAS number. What the lot certificate of analysis shows, by which method. Whether a safety data sheet comes with it. How small a first order can be. How the powder is shipped so that it arrives the way it left.

The answers on this site are the manufacturer's own facts. Bulk powder from five grams. Cold-chain shipping in an insulated inner pack. A lot COA that reports reverse-phase HPLC purity and mass-spectrometry identity, plus an SDS on request. Lead times stated as typical windows rather than promises. Nothing here is written for a consumer, and nothing here describes what a finished product will do on skin. Those claims belong to the brand that makes the product, substantiated in its own market.

What is listed, and what is not

The list is deliberately short. It contains the cosmetic-relevant compounds that Pepti already manufactures in Guangzhou and can supply as bulk powder: six peptide raw materials and four non-peptide actives that come off the same production line and ship on the same terms. Peptides that are sold for laboratory research rather than formulation are not listed here, and neither are compounds that Pepti does not make. If a raw material you need is missing, the honest answer is that we do not have it, and the RFQ reply will say so.

This site also does not offer finished-product manufacturing, branded finished goods, or custom peptide synthesis. It sells the raw material, with its documents, and stops there. Formulators who need a finished product made should look for a contract manufacturer; the material from this site can be shipped to one.

Documents before money

A supplier that manufactures its own material can show you a lot record before you pay. Pepti publishes vial-format batch records in a public library on its manufacturer site, each with a lot alias, the reported HPLC purity, the molecular-weight result from mass spectrometry and a retest date. For the raw materials on this site that already have a public record, the record is linked on the ingredient page. For the others, the lot COA is issued with the shipment and can be sent with the quotation. Across the whole library the reported purities currently fall between the low and high figures printed in the strip at the top of this page; the figure that matters for your order is the one on your lot's COA.

The safety data sheet follows the GHS sixteen-section format and names the manufacturer and its site address. Formulators who have not filed a peptide SDS before can read the guide on how to read a peptide COA and SDS; it walks through each line.

Why grams, and why cold-chain

Peptide raw materials are used at low levels, so a five-gram pack covers a long series of bench trials and a first stability batch. Quoting in grams keeps a first order small enough to evaluate without committing to a production quantity; larger lots are quoted in grams as well, because no tier above gram quantities is published. Vial-format material, a sample kit of ten vials, is available for buyers who prefer to run their first identity check on sealed single-use units.

Cold-chain shipping is standard rather than an upgrade. Peptide powders are hygroscopic and several of the compounds listed here are sensitive to heat, light or oxidation. The pack that leaves Guangzhou is an insulated inner box with gel packs and a foam spacer inside a plain outer carton. The order-photos page shows each packing stage so you know what to expect at goods-in.