Do not apply the gel if your skin has problems. If your skin is irritated, cut, or swollen, do not use the gel.In case you have some problem consult with your dermatologist immediately. If the gel accidentally gets into eyes, rinse immediately with warm water. Store the product in cool temperature. Avoid storing in extremely high or low temperatures, humidity, and direct sunlight. Make sure the pump is not stuck before using. Do not rub skin too hard. Beneficial effects of gel should last approximately 3 to 4 months if used properly 2 times per week. It is recommended that you finish the product within 6 months.