Leuphasyl vs Palmitoyl Pentapeptide-4

Tetrapeptide that mimics enkephalin to modulate facial muscle contraction; competes with enkephalin for opioid receptor sites in neuromuscular junctions; reduces repetitive muscle micro-contractions

A neuromodulating peptide that reduces expression lines via the enkephalin pathway, distinct from SNARE-inhibiting peptides (Argireline, SNAP-8). Complements those actives through a different mechanism.

Binds TGF-β receptors on fibroblasts, upregulating collagen I, III, fibronectin, and hyaluronic acid synthesis. The palmitoyl chain provides lipophilicity for improved skin penetration into the dermis.

A lipopeptide consisting of a palmitoyl fatty acid attached to the pentapeptide KTTKS. A key component of Matrixyl 3000 formulations. Stimulates collagen and extracellular matrix production more potently than palmitoyl tripeptide-1 (Matrixyl) alone, particularly for deep wrinkle reduction.