Castaline (INCI: Glycerin (and) Water (Aqua) (and) Castanea Sativa (Chestnut) Leaf Extract) is an active ingredient for cosmetics that is clinically demonstrated to help improve the appearance of sensitive skin prone to extreme dryness. Castaline is a 100% natural upcycled organic solution from French chestnut leaves; it is intended to comfort skin.
For more information visit the BASF website.