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Toluene Sulfonic Acid

Toluene sulfonic acid is an organic acid primarily used in cosmetic formulations to adjust the pH level of a product. It helps ensure the product remains stable and effective by maintaining the desired acidity or alkalinity. In some applications, it can also act as a catalyst for certain chemical reactions. While generally safe in formulated products, concentrated forms can be irritating.

PH adjusterVegan
BenefitNone 0 / 4
RiskLow 1 / 4
Irritation i1 / 4

Risk of short-term irritation — stinging, burning, dryness, redness, or discomfort. Common for strong actives, acids, retinoids, fragrances, and harsh surfactants.

Rated by SpottyLabs' ingredient methodology, independent of brands.

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Products with Toluene Sulfonic Acid

Pure Vitamin C Eye Cream
La Roche-Posay
Pure Vitamin C Eye Cream
4.6/ 510/16/4

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Frequently asked questions

What is Toluene Sulfonic Acid used for in cosmetics?
It's primarily used to adjust and stabilize the pH of cosmetic products, ensuring they work effectively and remain safe for use.
Is Toluene Sulfonic Acid safe for skin?
When properly formulated and used at appropriate concentrations, it is considered safe. Like many acids, concentrated forms can be irritating, but cosmetic products are designed to mitigate this.