1. Apply a few drops to clean areas of the face and neck before applying moisturizer.
2. It is recommended not to use serums with other active ingredients at the same time.
3. Only use at night, maximum 2-3 times a week
4. Use sunscreen in the morning

CAUTION:
lf any sign of irritation reaction occurs (burning, redness, itchiness etc.), please stop using immediately and seek medical attention. During use avoid direct contact with sunlight. Avoid eyes, mouth, areas with broken skin and other areas with exposed mucous membranes. Patch testing before using on the face is advised.
This product contains Alpha Hydroxy Acid (AHA), which can increase skin sensitivity to sunlight and, in particular, the possibility of sunburn. Use sunscreen and wear clothing that protects the skin from sun exposure during use and a week after using this product.