The Ordinary Glycolic Acid 7% Exfoliating Toner 240ml

The Ordinary Glycolic Acid 7% Exfoliating Toner 240ml ▶ Country of origin : CANADA ▶ Manufacturer: DECM Beauty Group INC / Responsible Distributor: DECM Asia Pacific ▶ Volume & content : 240ml ▶ Product description : Glycolic Acid is an alpha hydroxy acid that exfoliates the skin. This 7% toning solution offers mild exfoliation for improved skin radiance and visible clarity. The formula also improves the appearance of skin texture with continued use. This formula contains a studied Tasmanian Pepperberry derivative to help reduce irritation associated with acid use. This derivative is of plant origin and varies in colour seasonally and this colour variation may be apparent in the formula from time to time. The formula is further supported with inclusion of ginseng root and aloe vera for both visible radiance and soothing benefits. Contraindications: This formula should not be used on sensitive, peeling or compromised skin. The pH of this formula is approximately 3.6. Glycolic Acid has a pKa of 3.6 and pKa is the most important aspect to consider in formulating with acids. pKa implies acid availability. When pKa is close to pH, there is an ideal balance between salt and acidity, maximizing effectiveness of the acid and reducing irritation. Higher pH numbers in such a case would increase salt which counter-intuitively would make the formula even more irritating than if the formula was more acidic. ▶ How to use : Use ideally in the PM, no more frequently than once per day. After cleaning, saturate a cotton pad with the formula and sweep across face and neck. Avoid the eye contour and contact with eyes.