Apply a thin layer to cleansed skin, avoiding the eye area, or open wounds. Rinse off after five minutes, or if irritation occurs, rinse immediately. For your information, a light tingling sensation will occur. If the skin becomes irritated, wash off immediately with warm water and apply hydrocortisone cream to the face. Tone, nourish, and protect your skin with SPF if you use mask during am routine. Always test the product on a small area before use on the entire face. This product can irritate sensitive skin or skin that has wounded pores. Only you will know when to wash off the mask, which should happen at the first sign of any irritation. Apply jojoba or olive oil after masking for a neutralizing effect. Apply a thin layer to clean skin. Gently massage in a circular motion with wet fingertips to polish skin with enzymes. Leave on for 3 to 7 minutes depending on skin sensitivity and let the AHAs and enzymes work. Rinse thoroughly. Use 1 or 2 times a week. For external use only.