Glycolic acid toner 7% from The Ordinary brand - 100 ml

The Ordinary Glycolic Acid 7% Toner for light skin exfoliation works to brighten and purify the skin with continued use and restore its radiance. It also contains ginseng and aloe vera to reduce and soothe skin irritation. Size: 100 ml Method of use: For daily use, apply once in the evening only. After cleansing the skin, dampen a cotton pad with the acid, then wipe the face and neck, avoiding the eye area. Do not rinse after use. Note: Do not apply on sensitive, inflamed, or damaged skin. Use sunscreen because it contains exfoliating acids, so the skin becomes sensitive to the sun. Glycolic Acid 7% Skin Tone Equalizer Solution is an exfoliant targeting the surface of the skin. It helps increase clarity, even out uneven skin tone, and improve texture over time. This formula contains a derivative of the Tasmannian pepper plant, which varies in color from season to season, and this color variation may appear in the formula from time to time. This formula should not be used on sensitive, peeling, or vulnerable skin. Please refer to the additional sun protection note and other warnings in the attached instructions. The pH of this formula is about 3.6. Glycolic acid has a pKa of 3.6, and pKa is the most important aspect to consider when formulating acids. pKa indicates the availability of the acid. When pKa is close to the pH level, there is an optimal balance between salt and acidity, increasing the acid’s effectiveness and reducing discomfort.