Please note that all serums can sometimes create irritations for people with very sensitive skin or uncommon sensitivities. Always try the product on a small area before using it, ideally behind an ear or under the chin. Allow 24 hours to check how your skin responds 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.