In the competitive world of cosmetic formulation, achieving effective UV protection while maintaining desirable product aesthetics is paramount. For formulators aiming to create high-performance sunscreens and skin-care products, understanding the role of UV filters, particularly water-soluble options, is crucial. This is where ingredients like 2-Phenylbenzimidazole-5-sulfonic acid, commonly known as Ensulizole, come into play. As a leading manufacturer and supplier, we are dedicated to providing cosmetic formulators with the high-quality ingredients they need to innovate and succeed.

The Science Behind UV-B Absorption

Ultraviolet (UV) radiation from the sun can cause significant damage to the skin, leading to premature aging, sunburn, and an increased risk of skin cancer. UV radiation is broadly categorized into UVA and UVB. While UVA rays penetrate deeper into the skin, UVB rays are the primary cause of sunburn. Therefore, effective UV-B absorption is a cornerstone of comprehensive sun protection. 2-Phenylbenzimidazole-5-sulfonic acid (CAS 27503-81-7) is a highly effective UV-B absorber, recognized for its ability to significantly boost the Sun Protection Factor (SPF) of cosmetic formulations.

Why Choose Water-Soluble UV-B Filters?

Historically, many sunscreen ingredients have been oil-soluble, requiring specific formulation techniques to ensure even dispersion and stability. However, oil-based sunscreens can sometimes feel heavy or greasy on the skin, deterring consumers seeking lighter textures. This is where water-soluble UV-B filters like 2-Phenylbenzimidazole-5-sulfonic acid offer a distinct advantage. Their inherent solubility in water allows formulators to create elegant, non-greasy emulsions and clear gel formulations that are more appealing to the end-user. When you choose to buy Ensulizole from a reputable manufacturer, you are investing in a versatile ingredient that can elevate the sensory profile of your products.

Performance and Formulation Benefits

Our 2-Phenylbenzimidazole-5-sulfonic acid, supplied at a high purity of ≥99% and meeting USP, BP, and EP standards, is designed for optimal performance. Its key benefits include:

  • Enhanced SPF: It effectively increases the SPF of sunscreens when used in combination with other UV filters, both organic and inorganic.
  • Product Protection: Beyond skin protection, it also helps shield the cosmetic formulation itself from UV-induced degradation, maintaining product integrity and efficacy over time.
  • Formulation Flexibility: Its water solubility makes it ideal for water-phase incorporation, facilitating the development of innovative textures and clear formulations.

Sourcing Excellence from a Trusted Manufacturer

As a leading supplier based in China, we understand the critical importance of consistent quality, reliable supply, and competitive pricing. For cosmetic formulators seeking to buy 2-Phenylbenzimidazole-5-sulfonic acid, partnering with us means accessing a high-quality UV-B absorber that meets stringent industry standards. We are committed to supporting your formulation challenges and helping you bring superior sun protection products to market. Don't hesitate to request a quote for bulk purchasing or to inquire about sample availability.