Virtually all skin experts agree: Retinol remains to be the gold standard in anti-aging. A Vitamin A derivative, Retinol is prized for its proven excellent anti-aging benefits and youth-enhancing results.
With over 40 years of established research, retinol is shown to have astounding benefits for the skin and is popular for its ability to refine and smooth the skin's surface, improve uneven skin tone, and reduce the appearance of fine lines, wrinkles, and dark spots.
Please note that all serums can sometimes create irritation for people with very sensitive skin. Always try the product on a small area before using it, ideally behind an ear or under the chin. Allow 24 hours to check your skin's response to the product.
This Cos De BAHA product is currently sold out. MaryenB is our newer line of single-active Korean serums. These MaryenB serums use a related active. MaryenB is not yet for sale on this site.