Skincare made fresh, one bottle at a time.

CYNCO is a small peptide skincare line built around one idea: serums work best when they're fresh. Each bottle is made to order after you check out and shipped within 48 hours.

Our formulas pair clinically used peptides — SNAP-8, GHK-Cu, and more — with a clean Hyaluronic Acid base. No filler ingredients, no inflated batches, no shelves of aging serum.

The name? It's an ode to the number five. The day we met, Cinco de Mayo 2006. The day we sold our first serum, Cinco de Mayo 2026. And Cynthia's name woven through it all. CYNCO.