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Terephthalylidene Dicamphor Sulfonic Acid

Description

Terephthalylidene Dicamphor Sulfonic Acid, also known as Ecamsule or Mexoryl SX, is a potent photostable UVA filter used in advanced sunscreen formulations. This organic compound offers broad-spectrum protection against harmful ultraviolet radiation, with particular efficacy in the UVA range of 320-340 nm. Its unique molecular structure allows it to remain stable when exposed to sunlight, maintaining its protective properties for extended periods.

Unlike some chemical sunscreens, Terephthalylidene Dicamphor Sulfonic Acid does not significantly penetrate the skin, reducing the risk of systemic absorption and potential hormonal disruption. It is water-soluble, making it ideal for lightweight, non-greasy sunscreen formulations. The ingredient is often combined with other UV filters to provide comprehensive protection across the UVA and UVB spectrum.

Approved for use in sunscreens by health authorities in numerous countries, including the European Union and Australia, Terephthalylidene Dicamphor Sulfonic Acid has demonstrated a favorable safety profile in dermatological studies. It is particularly beneficial in preventing photo-aging, hyperpigmentation, and reducing the risk of certain skin cancers associated with UVA exposure. Its incorporation in skincare products significantly enhances their sun protection factor (SPF) and PA (Protection Grade of UVA) ratings.