
THE STORY OF NANOACTIV B3
Nanoactiv B3: Broad-Spectrum UV Protection in a Single Molecule
Nanoactiv B3 (2-Hydroxy-4-methoxybenzophenone) is a highly efficient organic UV filter and photostabiliser. It absorbs both UVB and portions of UVA rays, helping prevent sunburn, photodamage and premature aging in skin.
Synthesised for Precision: High Purity UV-Filter
Nanoactiv B3 is produced via a controlled synthesis route (e.g., Friedel-Crafts reaction) and then purified into crystalline form for use in cosmetics and sunscreens. It is supplied as a pale yellow solid with excellent solubility in oil phases
Shielding Skin from the Sun: Performance & Versatility
Benzophenone-3 delivers key benefits in sun care formulations:
• Strong UVB + partial UVA absorption, contributing to broad-spectrum protection.
• Acts as a photostabiliser for other filters and active ingredients, enhancing product longevity.
• Oil-soluble, easy to incorporate in emulsions, creams, sprays and lip balms.
Used widely in daily sunscreens, anti-age serums, lip protection and sun-exposed body care.
Effective, but Requires Care: Regulatory & Formulation Guidelines
• Usage limits vary by market — for example up to ~6% in EU sunscreens.
• Store in a cool, dry, light-protected environment to preserve stability.
• Although effective, studies highlight concerns: systemic absorption, endocrine disruption potential, coral reef impact.
• Formulators should ensure compatibility with other filters, stabilisers, and ensure batch COA and safety data are compliant.
Formulator’s Queries, We Answered
1. What is NANOACTIV B3?
NANOACTIV B3 is the cosmetic-grade form of Benzophenone-3, optimized using nano-technology for advanced UV protection in personal care formulations. It is widely used as a UV filter in sunscreens, lotions, and cosmetic products to protect the skin from harmful UVA and UVB radiation, preventing premature aging and sunburn.
2. What is the CAS Number and INCI Name of NANOACTIV B3?
CAS Number: 131-57-7
INCI Name: Oxybenzone
3. What are the benefits of using NANOACTIV B3 in personal care products?
Broad-Spectrum Protection: Shields the skin from both UVA and UVB rays.
Photostability: Helps improve the longevity of sunscreen formulations.
Anti-Aging Support: Prevents UV-induced skin damage such as wrinkles and pigmentation.
Compatibility: Easily blends with other UV filters for enhanced sun protection.
Nano-Enhanced Performance: Provides better skin coverage and improved absorption.
4. What are the common applications of NANOACTIV B3 in personal care?
Sunscreens and Sunblocks – Core UV protection ingredient.
Day Creams and Moisturizers – Adds daily sun defense.
Lip Balms – Prevents sunburn and chapping.
BB & CC Creams / Foundations – Provides integrated UV protection in makeup.
Hair Care Products – Protects hair and scalp from UV damage.
5. Is NANOACTIV B3 safe for use in personal care products?
Yes, NANOACTIV B3 is considered safe for topical use when formulated within regulatory limits. It is widely approved in cosmetics across many regions, though maximum permitted concentrations may vary depending on local regulations.
6. Can NANOACTIV B3 cause skin irritation?
NANOACTIV B3 is generally well-tolerated. However, in rare cases, sensitive individuals may experience mild irritation or allergic reactions. As with all actives, a patch test is recommended before widespread use.