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2-Phenylbenzimidazole-5-sulfonic Acid CAS 27503-81-7 UV Absorbers

Products Name 2-Phenylbenzimidazole-5-sulfonic acid
CAS 27503-81-7
Specification ≥99.0%
Appearance White to off-white powder
MF C13H10N2O3S
MW 274.3
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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

    Benefits

    Thickeners

    Broad spectrum protection

    PBSA can effectively absorb UVA and UVB radiation, providing comprehensive sun protection.
    Actives

    Water-soluble

    Its water-soluble properties make it easy to mix with other ingredients and suitable for use in water-based formulations.
    Emulsifiers

    Low irritation

    Relatively mild, suitable for sensitive skin, reducing the risk of allergic reactions.
    Emulsifiers

    Enhanced Skin Protection

    Helps reduce UV-induced skin damage and reduces the risk of skin aging.
    Sunscreens

    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. 

    Applications

    It is commonly used in Sunscreen,foundation,BB cream,CC cream.
    Applications1
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    Sunscreen

    As one of the main ingredients, it provides effective sun protection.
    Applications3
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    Cosmetics

    Can be added to foundation, BB cream, CC cream and other cosmetics to enhance their sun protection function.
    Applications5
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    SKIN CARE

    Add to your daily skin care products for extra UV protection.
    Applications5
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    Children’s Products

    Due to its low irritation, it is suitable for use in children’s sunscreen products.
    Applications4
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    Anti-aging products

    Combined with other active ingredients, it helps protect against UV-induced skin aging.
    storage

    Storage

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

    gmo1

    Animal Testing

    Not animal tested

    vegetarian1

    Vegan

    Does not contain animal-derived components

    gmo

    GMO

    No data available

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