Also known as Witch Hazel Extract, is known to be a great astringent and anti-oxidant. It is a very mild ingredient and has not been found to be irritating. It is actually found to do the opposite and calm irritated skin. It is often used to help alleviate irritation from shaving, fight acne, and alleviate the symptoms of psoriasis and eczema. It has also been found to help reduce pore size and puffiness. It is commonly used in products for both Acne prone and maturing skin types.