Terephthalylidene Dicamphorsulfonic Acid-CAS 90457-82-6

Terephthalylidene Dicamphorsulfonic Acid-CAS 90457-82-6

• Cosmetic-grade Terephthalylidene Dicamphorsulfonic Acid (TDSA) is a high-efficiency water-soluble long-wave UVA sunscreen filter, belonging to the high-stability camphor derivative sunscreen system, and is a mainstream compliant raw material for high-end refreshing broad-spectrum sunscreen.

• Different from conventional light-labile UVA absorbers, TDSA has a rigid and stable molecular conjugated structure, with excellent intrinsic photostability, no molecular decomposition or efficacy attenuation under long-term strong ultraviolet irradiation, requiring no additional photostabilizers, which fundamentally solves the pain point of traditional UVA sunscreen failure after sun exposure.

• It focuses on covering the full UVA band of 320-400nm, with strong absorption targeting the deep long-wave UVA (330-360nm) that easily causes skin tanning, sagging and fine lines, effectively improving the PA protection level of formulas and achieving comprehensive anti-photoaging protection from epidermal to dermal layers.

• As a pure water-soluble sunscreen agent, TDSA completely avoids oil-phase residue and greasy texture of oil-soluble sunscreen raw materials, endowing finished products with ultra-light, breathable and matte refreshing skin feel.

• The raw material is mild and non-sensitizing, has excellent compatibility with all water-phase emulsifiers, moisturizing factors and water-soluble functional ingredients, does not affect the transparency and fluidity of water-based formulas, and is the core preferred raw material for developing lightweight, non-greasy, high-stability full-spectrum sunscreen products.

Key Benefits

• Pure Water-Soluble & Refreshing Skin Feel: Exclusive water-phase soluble structure, no oily residue, no stickiness and no greasiness, perfectly fit lightweight matte sunscreen formulas, improve product wearing experience.

• Full-Band Long-Wave UVA Interception: Cover 320-400nm complete UVA band, target deep UVA that causes photoaging and tanning, stably improve PA++++ protection index, comprehensive anti-dermal light damage.

• Industry-Leading Intrinsic Photostability: Rigid camphor molecular structure, zero photolysis under long-term sun exposure, no efficacy attenuation, no need for stabilizer compounding, lasting stable UVA protection.

• Mild Low-Sensitivity & High Safety: Purified low-impurity formula, non-irritating to facial and sensitive skin, low sensitization risk, suitable for long-term daily sunscreen and infant mild sunscreen.

• Excellent Water-based Formula Compatibility: Perfectly compatible with water-soluble UVB filters, water-phase emulsions and moisturizing systems, no precipitation or flocculation, stabilize transparent formula texture.

• High Cost-Performance & Easy Processing: Easy to dissolve and disperse, simple production operation, low effective dosage, significantly reduce formula greasiness and comprehensive cost, suitable for mass stable production.

Applications

• Refreshing Water-Based Sunscreen Lotion: Core UVA protective raw material for daily lightweight facial sunscreen, optimize non-greasy skin feel, improve full-spectrum protection, suitable for long-term commuter sun protection.

• Transparent Invisible Sunscreen Spray: Ideal for high-transparency spray formulas, uniform water-phase dissolution ensures no white film, no floating powder, natural and clear finishing effect.

• Mild Sensitive Skin & Infant Sunscreen: Applied in low-irritation high-safety sunscreen formulas, reduce skin burden, meet the sun protection needs of fragile skin and infant skin.

• Sunscreen Isolation & Makeup Primer: Added in water-based refreshing sunscreen isolation products, balance UV protection and makeup feeling, avoid greasy cakey makeup, improve base makeup durability.

• Anti-Photoaging Skin Care Series: Used in daily anti-light-damage skin care products, inhibit ultraviolet-induced skin aging, fade dullness, and maintain skin firmness and delicacy.

Certificate Of Analysis (COA)

Frequently Asked Questions (FAQ)

• Q1: What is the MOQ of cosmetic grade TDSA? 

A1: The standard MOQ is 1KG, and sample orders are supported for formula testing and stability trial production.

• Q2: What certification documents can be provided? 

A2: Complete COA, MSDS and full set of global customs clearance documents are available to support export declaration.

• Q3: What is the recommended dosage in sunscreen formulas? 

A3: Conventional addition ratio is 2.0%-4.0% for daily refreshing sunscreen, 4.0%-6.0% for high PA++++ full-spectrum sunscreen, adjustable according to UVA protection requirements and formula texture.

• Q4: What is the core advantage of TDSA compared with other water-soluble UVA filters? 

A4: TDSA has ultra-high intrinsic photostability without photolysis failure, no need for stabilizers, more stable long-term protection, better deep UVA absorption, and more excellent anti-photoaging effect.

• Q5: What raw materials is TDSA suitable for compounding? 

A5: It can be perfectly compounded with PBSA and other water-soluble UVB filters to build full-band UVA/UVB broad-spectrum sunscreen system, greatly improve product protection stability and skin feel.

• Q6: Do you support stable large-batch supply all year round? 

A6: Sufficient factory production capacity ensures continuous, stable and large-volume supply throughout the year to support long-term cooperative orders and customized formula demands.

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