Pai Instant Kalmer Ceramide Serum helps reactive skin find its center. Formerly known as Instant Calm Sea Aster Redness Serum, this serum is lightweight and hydrating. It's enriched with sea aster to calm skin and reduce visible redness. Also featuring wild oat, it delivers oleic and linoleic fatty acids, comforting dry areas and soothing sensitivity. Over time, it strengthens surface blood vessels to improve and prevent redness.