white liquid or raw material for skin care product

acid alpha apply aroma ascorbic azelaic beauty benzoic beta care ceramide chemical chemistry citric collagen essence glycerin glycolic health hyaluronic hydroxy ingredient lab laboratory lactic lipoid liquid malic malonic mandelic material natural nature object organic product products propionic raw research retinoic retinol salicylic science serum skin stearic succinic tartaric toners treatment vitamin white