Another viewer, a doctor, challenged whether there really was scientific evidence that pentapeptides reduced lines and wrinkles.
另一位医生观众质疑五肽能够减少细纹和褶皱的科学依据性。
2
Of these, Vitamin C, alpha-hydroxyl acids and pentapeptides were shown to be the most extensively researched with proven anti-aging benefits.
其中，维生素C、果酸、 胸腺五肽的研究最为广泛，而且被证明具有抗衰老作用。
3
She cites a study presented at the World Congress of Dermatology that she claims showed that pentapeptides reduce the appearance of lines and wrinkles.