The Ordinary Glycolic Acid 7% Toning Solution is an exfoliating toner featuring a 7% concentration of glycolic acid with a pH of 3.6. This water-based formula helps improve skin texture, even out skin tone, and promote radiance through gentle chemical exfoliation while maintaining optimal acid effectiveness with minimal irritation. This product contains a Tasmanian Pepperberry derivative that may cause slight color variations in the formula seasonally. The solution should not be used on sensitive, peeling or compromised skin. Due to the alpha-hydroxy acid (AHA) content, it may increase skin's sensitivity to sun exposure, so proper sun protection is essential during use and for one week after. The product can be applied to both face and scalp - when used on the scalp it helps rebalance and reduce dryness through hydration.