Ensulizol 1 kg

Ensulizole: Advanced Water-Soluble UV Filter for Lightweight Sun Protection

Ensulizole, also known chemically as Phenylbenzimidazole Sulfonic Acid, is a highly efficient, water-soluble chemical sunscreen agent that provides targeted protection against UVB radiation. Unlike many other UV filters that are oil-soluble and can feel heavy or greasy on the skin, Ensulizole is prized for its ability to create crystal-clear, lightweight, and non-comedogenic formulations. It appears as a white to off-white crystalline powder and must be neutralized with a base to become fully soluble and active. This component is an essential asset for formulators aiming to produce high-performance sunscreen products with a sophisticated, matte finish.

Technical Profile and Protective Properties

The primary function of Ensulizole is to absorb UVB rays, which are the main cause of sunburn and contribute significantly to long-term skin damage. Its unique water-solubility allows it to be incorporated into the aqueous phase of emulsions or used in completely oil-free gels.

Key properties of Ensulizole include:

• Effective UVB Absorption: It has a high extinction coefficient, providing excellent SPF (Sun Protection Factor) efficiency in the UVB range.

• Water Solubility: Once neutralized to a pH of approximately 7.0, it dissolves perfectly in water, enabling the creation of transparent sun gels and light sprays.

• Non-Greasy Sensory Profile: It significantly reduces the oily feel of high-SPF sunscreens, making it ideal for daily wear and oily skin types.

• Photostability: It is relatively photostable and can help stabilize other UV filters like Avobenzone when combined in a formula.

• Lightweight Texture: It allows for the development of "invisible" protection that does not leave a white cast or a heavy residue on the skin.

Comprehensive Applications and Fields of Use

Ensulizole is a versatile ingredient used across various sectors of the beauty and personal care industry, catering to consumers who demand both protection and comfort.

Daily Face Moisturizers and Day Creams: It is frequently used in daily facial care products to provide a basic level of sun protection without compromising the texture of the cream, ensuring it sits well under makeup.

Sunscreen Gels and Sprays: Its water-soluble nature makes it the gold standard for oil-free sun gels and clear aerosol or pump sprays that are popular for sports and outdoor activities.

Lightweight Sunscreen Lotions: By moving a portion of the UV protection to the water phase, formulators can create SPF 30 or SPF 50 lotions that feel significantly lighter and more breathable than traditional all-oil-phase formulas.

Post-Procedure Skin Care: Due to its light feel, it is often included in specialized care products for skin that has undergone aesthetic treatments, where avoiding heavy oils is beneficial.

Eye Contour Protection: Since it does not migrate as easily as oils, it is a preferred filter for sun-protective eye creams to minimize the risk of eye irritation.

Hair Care and Scalp Protection: Ensulizole can be incorporated into sun-protection hair mists and scalp serums to protect against UV-induced color fading and scalp burns without making the hair look greasy.

Recipe: Ultra-Lightweight Hydrating Sun Gel (SPF 15-20 Base)

This recipe demonstrates how to properly neutralize and incorporate Ensulizole into a refreshing, clear water-based gel.

Ingredients:

• Eighty-two milliliters Distilled Water (Aqueous Base)

• Three grams Ensulizole (UVB Filter)

• One point five milliliters Triethanolamine or TEA (Neutralizing Agent)

• Ten milliliters Aloe Vera Gel (Soothing Agent)

• Two grams Panthenol (Provitamin B5)

• One gram Carbomer or Xanthan Gum (Thickener)

• Zero point five milliliters Preservative (e.g., Phenoxyethanol)

Instructions for Preparation:

First Step — Preparing the Water Phase: In a clean glass beaker, measure the Distilled Water. Slowly add the Ensulizole powder while stirring. At this stage, the powder will not dissolve and will create a cloudy suspension.

Second Step — Neutralization and Solubilization: While continuously stirring, add the Triethanolamine (TEA) drop by drop. You will observe the liquid turning clear as the pH rises. Continue adding until the Ensulizole is completely dissolved. Verify that the pH is between 7.0 and 7.5 to ensure stability.

Third Step — Thickening the Gel: Sprinkle the Carbomer or Xanthan Gum over the clear solution. Allow it to hydrate for several minutes, then mix vigorously until a smooth, uniform gel is formed.

Fourth Step — Adding Actives: Incorporate the Aloe Vera Gel, Panthenol, and the liquid Preservative. Stir gently to avoid creating excessive air bubbles.

Fifth Step — Final Homogenization: Mix the entire composition for an additional three minutes until the gel is perfectly transparent and consistent. Transfer to a pump bottle or tube.

Recommendations for Application and Storage:

• pH Importance: The solubility and effectiveness of Ensulizole depend entirely on the pH. If the pH drops below 6.8, the ingredient may crystallize out of the solution, ruining the texture.

• Broad Spectrum Enhancement: For complete protection, Ensulizole should be used in combination with UVA filters. On its own, it primarily protects against burning, not aging.

• Usage Concentration: In most regions, the maximum allowed concentration in finished products is 4% to 8%. Always consult local regulations when formulating.

• Storage Conditions: Store the raw powder and finished gel in a cool, dark place. Avoid exposure to extreme heat, which can destabilize the pH balance of the formula.