Apply the HERA Retinol 3X Lifting Serum in the evening on clean, dry skin, after toner. Start with 2 to 3 times a week in small amounts, only on the face (avoiding the eye and lip areas), then increase the frequency if your skin tolerates it well. Finish with a good moisturizer and, the next morning, never skip sunscreen to fully enjoy the lifting and anti-aging effects without irritating your skin.