ilso Retinol ER Firming Serum 30ml

1. General Application (Evening Use Only) Step 1: After cleansing and applying your toner, take an appropriate amount of the serum (a moderate amount to the entire face). Step 2: Gently spread it along the skin texture and pat lightly to help with absorption. Follow-up: Always follow up with your preferred moisturizer to lock in hydration and further support the skin barrier. 2. Initial Use and Adjustment Period (Mandatory) Retinol requires a period of adjustment for the skin. Start Slow: For the first 1-2 weeks, use only a small amount (e.g., about the size of a grain of rice) and apply it every other day (or a few times a week). Gradual Increase: As your skin adjusts and shows no signs of irritation, you may gradually increase the amount or the frequency of use. 3. Important Precautions Nighttime Use Only: Due to increased sun sensitivity, this product must only be applied in the evening. Sunscreen is Essential: You must use a broad-spectrum sunscreen the following morning. Avoid Combining: Do not combine this serum with other strong exfoliating ingredients in the same routine, such as AHAs, BHAs, or Vitamin C, as this can increase the risk of irritation. Not for Pregnancy/Nursing: This product is not for use by pregnant or nursing women.