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Products Name  Mexoryl SL
CAS No  207574-74-1
INCI Name  Terephthalylidene Dicamphor Sulfonic Acid
Specification  ≥98%
Molecular Weight  274.31 g/mol
Chemical Formula  C₁₃H₁₀N₂O₃S
Appearance  White to off-white crystalline powder
Solubility  Water-soluble

Product Description

Product Description

Terephthalylidene Dicamphor Sulfonic Acid (also known as Mexoryl SL) is a water-soluble white or off-white powder. It has excellent solubility in water and polar solvents, making it a gold-standard filter for lightweight, high-performance sunscreens.

As a chemical sunscreen agent, it primarily absorbs ultraviolet light in the UVA and UVB bands (290-320nm). It converts absorbed light energy into harmless heat energy, protecting the skin from radiation-induced damage.

Terephthalylidene Dicamphor Sulfonic Acid

Why Choose Pharmaceutical-Grade Mexoryl SL:

  • Superior Water Solubility – Enables clear, oil-free SPF products and non-greasy formulations.
  • Enhanced Photostability – Maintains efficacy under prolonged sun exposure without degrading.
  • PH-Adaptable – Easily neutralized with TEA/NaOH for optimal performance in various formulations.
  • Synergistic Boost – Combines perfectly with other filters like Mexoryl SX for broad-spectrum protection.

Key Benefits

Protection

Effective UVA Protection

One of the most effective UVA-absorbing ingredients available, protecting against skin aging, wrinkles, and long-term damage.

Safety

Low Skin Absorption

Features a low absorption rate through the skin, reducing the risk of systemic side effects and ensuring safety.

Compatibility

Good Compatibility

Easily incorporated into the aqueous phase and works harmoniously with oil-soluble filters to enhance overall SPF.

Hypoallergenic

Hypoallergenic

Generally well-tolerated by sensitive skin types with a low incidence of allergic reactions or irritation.

Applications & Usage

This ingredient is dissolved in the aqueous part of cosmetic products and then mixed with other ingredients according to standard production processes. It is adjusted based on the desired protection level (PA/SPF value).

Skincare Products

Skincare Products

Used in moisturizers and hand creams to provide daily UVA protection during routine care.

Sunscreen Products

Sunscreen Products

Widely used in sun lotions and sprays to achieve high PA values and effective broad-spectrum coverage.

Multifunctional Cosmetics

Multifunctional Cosmetics

Added to BB creams, CC creams, and makeup primers to protect skin while adjusting tone.

Product Standards

Storage
Storage:

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

Animal Testing
Ethical Standard:

Not animal tested and Vegan-friendly (No animal-derived components).

Frequently Asked Questions

What is Terephthalylidene Dicamphor Sulfonic Acid?
It is a photostable, water-soluble UVA sunscreen agent used in cosmetic formulations to protect the skin from sun damage.
Is this ingredient suitable for sensitive skin?
Yes, it is considered hypoallergenic and is generally well-tolerated by those with sensitive skin types.
How does it differ from other sunscreen filters?
Unlike many oil-soluble filters, it is water-soluble, making it ideal for creating lightweight, non-greasy, and clear sunscreen formulations.
Is it stable under the sun?
Yes, it is highly photostable, meaning it maintains its protective efficacy even under prolonged exposure to ultraviolet light.
Can it be used in makeup products?
Absolutely. It is frequently used in multifunctional cosmetics like BB creams, CC creams, and primers to provide sun protection.
Is the product Vegan and GMO-free?
The product is Vegan and does not contain animal-derived ingredients. Current data suggests no GMO involvement in its standard production.

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