UV filters are essential ingredients in sunscreens and UV-protective cosmetics, designed to shield skin from harmful UVA and UVB rays. They fall into two main categories: chemical filters (like avobenzone or octinoxate), which absorb and neutralize UV radiation, and mineral filters (such as zinc oxide or titanium dioxide), which physically block rays by sitting on the skin’s surface. Choosing the right UV filter ensures both effective sun defense and skin compatibility.
Avobenzone
Avobenzone (chemical name: Butyl Methoxydibenzoylmethane) is an oil-soluble organic compound widely used as a UVA filter in sunscreen formulations. It is valued for its ability to absorb a broad spectrum of ultraviolet A (UVA) rays (320–400 nm), protecting the skin from premature aging and damage caused by sun exposure. Avobenzone is often combined with other UV filters to provide broad-spectrum sun protection. It is a pale yellow liquid or crystalline powder, soluble in oils and alcohols but unstable in sunlight unless stabilized with other agents.
Ellagic Acid
Ellagic Acid is a naturally occurring polyphenolic compound found in numerous fruits, nuts, and vegetables such as pomegranates, strawberries, raspberries, walnuts, and cranberries. It is a potent antioxidant known for its ability to scavenge free radicals and chelate metal ions. Due to its significant anti-inflammatory, anti-carcinogenic, and anti-viral properties, Ellagic Acid has gained extensive interest in pharmaceutical, nutraceutical, cosmetic, and food industries. It appears as a yellow to light brown crystalline powder, insoluble in water but soluble in organic solvents like ethanol and DMSO.
Methoxy benzophenone Sulfonic Acid
Methoxy Benzophenone Sulfonic Acid is a water-soluble UV filter widely used in sunscreen and cosmetic formulations. It absorbs ultraviolet (UV) radiation, primarily in the UVB range, protecting skin and products from harmful effects of sun exposure. This compound appears as a white to off-white powder or crystalline solid and is valued for its photostability and broad-spectrum UV protection.
Octyl Methoxycinnamate
Octyl Methoxycinnamate, also known as Octinoxate or OCM, is a commonly used organic UV filter in sunscreen formulations and personal care products. It absorbs ultraviolet B (UVB) radiation, protecting the skin from harmful sunburn and photodamage. OCM is favored for its excellent photostability, low skin irritation potential, and compatibility with other sunscreen agents.
Zinc Oxide USP
Zinc Oxide USP is an inorganic white powder composed primarily of ZnO. It is widely used as a functional additive in rubber, ceramics, glass, paints, and chemical industries. Known for its excellent chemical stability, UV-absorbing capability, and reactivity with acids and alkalis, this grade is tailored for industrial applications where high purity is not mandatory but consistent quality and performance are essential.