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Parsol 1789

Description

Parsol 1789, also known as Avobenzone, is a crucial broad-spectrum UVA filter widely used in sunscreen formulations. This oil-soluble ingredient effectively absorbs UV radiation across the UVA spectrum, particularly UVA I (340-400 nm), providing essential protection against the aging and damaging effects of long-wave ultraviolet light.

Chemically, Parsol 1789 is a dibenzoylmethane derivative that undergoes structural changes upon UV exposure, allowing it to dissipate absorbed energy as heat. Its photostability can be enhanced when combined with other UV filters like octocrylene or bemotrizinol. Typically used at concentrations of 2-3% in sunscreen formulations, Parsol 1789 contributes significantly to achieving high SPF and PPD ratings.

While highly effective, Parsol 1789 may cause skin irritation in some individuals and can degrade certain cosmetic ingredients. Formulators must consider its potential for photodegradation and implement stabilizing measures. Despite these challenges, Parsol 1789 remains a valuable ingredient in modern sunscreens, offering superior UVA protection when properly formulated. Its global regulatory approval and efficacy make it a cornerstone in comprehensive UV protection strategies.