Peter Thomas Roth Water FirmX Collagen Serum 1 oz
On the prowl for the best serum for wrinkles? Peter Thomas Roth FirmX Collagen Serum has something of a cult following. Use this serum twice a day for a difference you can see in as little as two weeks. With its collagen-boosting formula, this skincare product turns back time by tightening skin, improving elasticity, and smoothing wrinkles and fine lines.