Trideceth-4 Carboxylic Acid (Acid Form)

The Acid-Stable Surfactant for Active Skincare & Specialized Cleaning

Trideceth-4 Carboxylic Acid is the acid form of polyether carboxylate, designed specifically to thrive where ordinary surfactants fail: low pH environments. While traditional surfactants lose performance in acidic systems, this ingredient maintains excellent foaming, cleansing, and solubilizing properties even at pH levels as low as 3.0, making it the ultimate problem-solver for active formulations.

01. Advanced "Active" Skincare

Stability for AHAs, BHAs, and Peels.

• The Acid Cleansing Expert: Ideal for AHA/BHA cleansers and exfoliating gels operating at pH 3.5–5.0. It works synergistically with Glycolic Acid or Salicylic Acid to remove dead skin cells effectively. Unlike standard sulfates, it does not hydrolyze in acid, ensuring the product remains stable on the shelf.

• Reduced Irritation: "Acid brushing" treatments can be harsh. This surfactant mitigates the stinging sensation associated with fruit acids, offering a milder, more comfortable user experience during exfoliation.

• Skin Barrier Support: In leave-on products like acidic toners, it helps regulate the skin’s surface environment to a healthy, weakly acidic state, reinforcing the natural acid mantle and barrier function.

02. Pharmaceutical Solubilization

Enhancing Bioavailability.

• Solubilizer for Lipophilic Drugs: In pharmaceutical gels and topicals, it acts as a powerful solubilizing agent. It significantly improves the solubility of difficult-to-dissolve, fat-soluble actives—such as Retinoic Acid (Vitamin A derivatives)—in aqueous gels, ensuring the medication is delivered effectively to the target area.

03. Industrial Acid Cleaning

Rust Removal Without Corrosion.

• Acidic Metal Cleaners: A top-tier choice for industrial rust removers. It allows the cleaning solution to wet and penetrate metal surfaces deeply to remove rust residues. Crucially, it cleans without corroding the base metal, protecting the equipment during the maintenance process.

04. Formulation Flexibility

The Self-Buffering Stabilizer.

• Buffer Capacity: When formulated with salt-type surfactants, its acid structure provides a natural pH buffering effect. This enhances the overall stability of the formula, preventing pH drift and extending the product's shelf life.

Why Source Trideceth-4 Carboxylic Acid from Arshine?

Technical Expertise for Critical pH Formulas.

• Niche Expertise: Handling acid-form surfactants requires specific knowledge. Arshine understands the distinct storage and handling requirements of acidic raw materials compared to neutralized salts.

• Purity for Pharma & Face: Since this ingredient is often used in "active" skincare (like Retinol serums or Acid peels) and medical ointments, purity is critical. We supply high-grade material with minimal impurities to ensure safety on compromised or sensitive skin.

• Formulation Guidance: We don't just sell ingredients; we offer solutions. Our team can advise on how to neutralize or buffer this ingredient in your specific system to achieve the exact viscosity and performance you need.