Oxothiazolidinecarboxylic Acid
What Oxothiazolidinecarboxylic Acid is & what it does
Oxothiazolidinecarboxylic Acid, also known as procysteine, is a sulfur-containing amino acid derivative related to cysteine. In skincare it is used as a skin-conditioning and antioxidant agent and is sometimes included for its supportive, brightening reputation tied to its sulfur chemistry. It is typically used at low concentrations. It is generally considered well tolerated in cosmetic formulas.
What is Oxothiazolidinecarboxylic Acid?
Also known as procysteine, it is a sulfur-containing amino acid derivative related to cysteine. It is used as a skin-conditioning and antioxidant agent.
What does Oxothiazolidinecarboxylic Acid do in skincare?
It is included as a conditioning antioxidant and is sometimes used for its brightening reputation tied to its sulfur chemistry, typically at low concentrations.
Is Oxothiazolidinecarboxylic Acid safe?
It is generally considered well tolerated in cosmetic formulas at the levels commonly used.
Sunscreens with Oxothiazolidinecarboxylic Acid
We rate 3 sunscreens that contain it:
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L'Oreal Youth Code Dark Spot Corrector Day Moisturizer Broad Spectrum SPF 30
65/100
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Lancôme Bienfait Multi-Vital Sunscreen Lotion Broad Spectrum Spf 30
63/100
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Lancôme Bienfait Multi-Vital Spf 30 Day Cream
62/100