Back to Ingredient Dictionary

HYDROCHLORIC ACID

Description

Hydrochloric acid (HCl) is a potent inorganic acid widely used in various industries, including skincare and cosmetics. In dermatological applications, it serves primarily as a pH adjuster and exfoliant. Its strong acidic properties make it effective in controlling the acidity of formulations, which is crucial for product stability and efficacy. When used in controlled concentrations, typically below 1%, HCl can aid in chemical exfoliation by breaking down the bonds between dead skin cells, promoting cell turnover and skin renewal.

In skincare formulations, HCl is often utilized in chemical peels, particularly for treating hyperpigmentation, acne scars, and fine lines. Its ability to penetrate the skin's outer layers makes it effective in addressing deeper skin concerns. However, due to its potency, professional application and careful monitoring are essential to prevent skin irritation or damage. HCl's role in maintaining optimal pH levels in products also helps preserve their antimicrobial properties, extending shelf life and ensuring product safety. Despite its benefits, the use of hydrochloric acid in skincare requires expertise in formulation to balance efficacy with skin tolerance and safety.