Formulated with hyaluronic acid, alpha hydroxy acid (glycolic acid), squalane, portulaca oleracea extract, and soluble collagen, Dr. Denese Firming Facial Collagen Night Serum also includes botanical extracts orange, lemon, hops, and chamomilla flower extract. With this convenient Auto-Delivery plan, you'll receive a new supply approximately every four months for two years. Free of parabens sulfates and dyes, this serum is designed to help address the appearance of the signs of aging including dry, fine lines and wrinkles and leaves skin looking soft and smooth. In a 10-person test, 100% of participants showed a measured improvement in skin firmness and tightness after 21 days. How do I use it: Apply to the face, neck, and under eyes at night. Follow with night cream as desired. From Dr. Denese.