Specialty Research Peptides

Specialty peptides encompass unique research compounds with novel mechanisms that don't fit neatly into other categories — including antioxidants, neuropeptides, and experimental sequences under active investigation.

Available Specialty Peptides (10)

Specialty and cosmetic research peptides

Specialty peptides are compounds with distinct mechanisms that don't fit the other categories. They include ARA-290, an erythropoietin-derived peptide studied in neuropathy models; VIP (vasoactive intestinal peptide); Larazotide Acetate, studied for intestinal tight-junction regulation; PNC-27; and Thyrotropin-releasing hormone (TRH).

Cosmetic-science research peptides are also listed here: Argireline, Matrixyl and SNAP-8, which are studied in skin and formulation research.

Buying specialty research peptides

Each product lists its HPLC purity specification (≥98% or higher). Where a CertikLabs certificate of analysis (COA) is available for a strength and lot, it is linked from that product page with HPLC purity, LC-MS identity, and concentration results. Because this category spans distinct structures and research applications, compare each compound's identity, strength and available documentation individually. For an evidence-based purchase review, use the research peptide supplier checklist, learn how peptide lab verification works, and confirm that any available report matches the ordered product, strength and lot. All compounds are supplied lyophilized, strictly for in-vitro laboratory research. They are not drugs, supplements or cosmetics and are not for human or veterinary use — see Research Use Only.

Frequently asked questions

Are the cosmetic peptides sold as finished skincare?

No. Argireline, Matrixyl and SNAP-8 are supplied as lyophilized research materials for laboratory and formulation research, not as finished cosmetic products.

Research Use Only. All PeptidesDirect compounds are sold for licensed laboratory research and independently HPLC-verified.