Fortify your cuticles and add a nourishing, hydrating layer, sealing in the essential vitamins and restoring your lashes to their youthful, natural state. The Keratin in LAYER mimics the natural polypeptide chains in your lashes, bonding to the rough edges of individual lashes, covering the cuticle, repairing any damage, and promoting strength.

Best used after the step 1 growth serum. 
Apply to clean lashes. 

Sarah Maxwell Keratin Treatment