What type of acid is known for its exfoliating properties?

The option identifying TCA, or trichloroacetic acid, is recognized for its significant exfoliating properties, primarily due to its strength and ability to penetrate deeper layers of the skin. TCA is commonly used in chemical peels, offering effective exfoliation for various skin concerns, including hyperpigmentation, fine lines, and uneven texture. It works by removing dead skin cells and stimulating collagen production, making it a powerful choice for enhancing skin renewal and improving overall skin appearance.

While other acids, such as lactic acid and citric acid, do have exfoliating abilities, TCA is particularly notable for its potency and the depth of exfoliation it provides. Lactic acid is a gentle exfoliant that primarily works on the surface of the skin, making it suitable for sensitive skin. Citric acid, derived from citrus fruits, also has mild exfoliating properties but is not as commonly used for deep exfoliation as TCA.

In essence, TCA is specifically chosen for its strength and efficacy in professional skincare settings, making it the most appropriate answer to the question regarding acids known for their exfoliating properties.