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4-T-BUTYLBENZOIC ACID

Description

4-T-Butylbenzoic acid is a synthetic aromatic compound widely used in skincare and cosmetic formulations. This white crystalline solid is derived from benzoic acid and features a tert-butyl group at the para position. Its molecular formula is C11H14O2, and it exhibits moderate solubility in water with increased solubility in organic solvents.

In skincare, 4-T-Butylbenzoic acid functions primarily as a preservative and antimicrobial agent, helping to extend the shelf life of products by inhibiting the growth of bacteria and fungi. It also possesses mild exfoliating properties, assisting in the removal of dead skin cells and promoting cellular turnover.

The ingredient demonstrates effectiveness at low concentrations, typically ranging from 0.1% to 0.5% in formulations. It is particularly useful in oil-based products due to its lipophilic nature. 4-T-Butylbenzoic acid has shown synergistic effects when combined with other preservatives, enhancing overall product stability.

While generally considered safe for cosmetic use, some individuals may experience skin irritation or sensitization. As with any active ingredient, patch testing is recommended before widespread application. Regulatory bodies such as the FDA and EU Cosmetics Regulation have established guidelines for its use in personal care products.