The Peptide‑based Cosmetics Raw Materials segmentation by type classifies raw materials according to molecular function and synthesis route, which determines formulation compatibility and price premium. Signal peptides, accounting for roughly 30 % of the type mix, are short chains that trigger intracellular cascades to increase collagen and elastin production; their high bioactivity justifies a larger share of the premium market. Carrier peptides, comprising about 25 %, serve as delivery vectors that improve skin penetration of actives, and are widely adopted in multi‑active complexes. Neurotransmitter‑inhibitor peptides, with a 20 % share, modulate facial muscle contraction and are central to “skin‑tightening” serums. Enzyme‑inhibitor peptides, representing 15 %, block matrix‑metalloproteinases and are essential for anti‑aging and photoprotection blends. The remaining 10 % includes miscellaneous categories such as antioxidant peptides, metal‑chelating peptides, and bio‑mimetic analogues, each addressing niche performance claims. The relative weight of each type reflects its contribution to total market revenue, guiding suppliers’ portfolio prioritization.