Source:amazon.comBiossance Squalane With Lactic Acid Resurfacing Night Serum$62.00JayThe first time I used this serum was when I was traveling to Chicago in the winter. My face had so much dry, dead skin due to the dry, cold climate and I desperately needed an exfoliation. I used this product in my nighttime routine and noticed that my skin looked baby-butt smooth in less than a week!I was amazed at the efficacy of this exfoliating serum. It uses a mix of 10 percent vegan lactic acid to exfoliate dead skin cells, squalane to boost the lactic acid, and clover to lock in moisture. Squalane is a skin-loving, ultra-nourishing, and incredibly clean oil that Biossance works into all its products. This ingredient is specifically helpful when paired with exfoliators, which can cause skin sensitivity or dryness. It's what makes this exfoliating serum so gentle on the skin. I personally enjoy using Biossance's serum at night, but you can also use it during the day. Just be sure to add something with a good SPF rating on top! …View more