We generally recommend applying Pure Peel AHA Exfoliating Solution in the evening, no more than twice a week, and on skin that is not too tanned and has been protected during the day using a sunscreen with a sun protection factor (SPF) higher than 20. However, as Pure Peel AHA Exfoliating Solution accelerates the cell renewal process, if you think you will be exposed to the sun for longer periods (e.g. when on holiday), we advise against using the product, to avoid the possible appearance of spots. During the summer, we rather recommend you use hydrating and soothing products. For instance, you could try our Refreshing Aftersun Mask, the Antipollution Firming Cream for Face and Neck, or the Hydrating Firming Body Cream with 4-molecular weight hyaluronic acid.