Health & Beauty > Personal Care > Cosmetics > Skin Care > Lotion & Moisturizer Beauty > Skin Care > Serum in stock The Organic Pharmacy Hyaluronic Acid Serum: Brilliant for all skin types, this serum is a super moisturizing treatment that sinks instantly into skin. Made with triple molecular weight 0.2% hyaluronic acid (it’s naturally found in the body but levels drop as we age), witch hazel, and grapefruit, this daily serum deeply hydrates and plumps skin leaving it silky-soft and supple.1 fl oz. Discover more clean face serum and non-toxic skincare at goop.com.