Birken GmbH (Birken) is engaged in the development of skin care products. It develops medical skin care products for allergies, dry skin, inflammation, dry and chapped lips. It also offers concomitant therapy for atopic dermatitis, psoriasis and diabetes. Its medical skin care products contain the active ingredient Betulin. In addition, the company include various skin care products such as lippenbalsam plus, creme pur, lotion plus and fusscreme plus. The company is headquartered in Belgium.