0102030405
2-Phenylbenzimidazole-5-sulfonic Acid CAS 27503-81-7 UV Absorbers
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Product Description
2-Phenylbenzimidazole-5-sulfonic acid (commonly referred to as PBSA) is an organic compound widely used as a UV filter in cosmetics and skin care products. It is mainly used in sunscreen products and can effectively absorb UVA and UVB radiation to protect the skin from the sun’s damage. The water-soluble nature of PBSA makes it compatible in formulations and suitable for use in various types of skin care and cosmetics.
2-Phenylbenzimidazole-5-Sulfonic Acid is a water-soluble UV absorber that mainly absorbs the UVB segment and is widely used in sunscreen products to provide broad-spectrum sun protection to the skin.
Introducing Aogebio® 2-Phenylbenzimidazole-5-sulfonic Acid, our premium water-soluble UV filter that delivers powerful protection against UVB and short UVA rays (290-320 nm). This high-performance active ingredient is specially designed for lightweight sunscreens, daily moisturizers, and spray formulations, offering exceptional photostability and water resistance for lasting protection.
Key Benefits of Aogebio® 2-Phenylbenzimidazole-5-sulfonic Acid:
✔ Strong UVB absorption for effective sunburn prevention
✔ Water-soluble formula ideal for sprayable and fluid formulations
✔ Enhanced photostability maintains protection under sunlight
✔ Synergistic effect with other organic and inorganic UV filters
✔ Non-greasy, fast-absorbing texture for comfortable wear
Broad spectrum protection
PBSA can effectively absorb UVA and UVB radiation, providing comprehensive sun protection.
Water-soluble
Its water-soluble properties make it easy to mix with other ingredients and suitable for use in water-based formulations.
Low irritation
Relatively mild, suitable for sensitive skin, reducing the risk of allergic reactions.
Enhanced Skin Protection
Helps reduce UV-induced skin damage and reduces the risk of skin aging.
Good formula stability
Shows good stability under different pH and temperature conditions.
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Use
2-Phenylbenzimidazole-5-sulfonic acid is usually added to sunscreen products in the form of lotions, creams, sprays, etc. Its usage concentration is generally between 2% and 10%, depending on the product’s formula and the expected sunscreen effect.
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Sunscreen
As one of the main ingredients, it provides effective sun protection.
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Cosmetics
Can be added to foundation, BB cream, CC cream and other cosmetics to enhance their sun protection function.
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SKIN CARE
Add to your daily skin care products for extra UV protection.
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Children’s Products
Due to its low irritation, it is suitable for use in children’s sunscreen products.
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Anti-aging products
Combined with other active ingredients, it helps protect against UV-induced skin aging.

Storage
Store in a closed container at a dry place at room temperature.

Animal Testing
Not animal tested

Vegan
Does not contain animal-derived components

GMO
No data available
