iS Clinical Active Serum is a fast-acting, multi-tasking face serum that targets fine lines, wrinkles, acne and uneven skin tone in one step. Powered by botanical AHAs from bilberry and sugarcane plus BHA-rich white willow bark, it gently exfoliates, resurfaces and refines the appearance of pores for smoother, clearer skin. Mushroom extract conditions and hydrates, leaving the complexion soft and revitalized. This lightweight, cooling serum absorbs quickly, delivering both instant radiance and long-term results for brighter, more youthful, glass-skin glow on all skin types.