AHA Marine Moisture Cream For All Skin Types This moisturizer contains 15% glycolic acid and 5% algae peptides. It is uniquely capable of boosting of our skin’s collagen production. After four weeks of twice daily use, laboratory testing reveals skin smoothness increased by 62%, appearance of fine lines decreased by 41% and skin firmness increased by 32%. PLRCMarine Price: $67.29 3220