五胜肽Matrixyl(微胶原蛋白)由5个氨基酸所组成，促进胶原蛋白和纤维母细胞再生，便重建细胞外的基质，提高肌肤的含水量，有效的消除深层皱纹，使肌肤紧实光滑有弹性。
Palmitoyl Pentapeptide-3: these peptides are based on palmitic acid. Amino acids in conjunction with fatty acids are FA's #1 enemy.
Not safe for fungal acne / Pityrosporum (Malassezia) Folliculitis.
But because a tiny amount is needed to be effective (at most 10 ppm), and malassezia doesn't happen with ingredients that are less than 0.01%, this ingredient is safe for people with fungal acne.
棕榈酰五肽-4，在2006年前称为“棕榈酰五肽-3”