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TEA-LAURETH-4 PHOSPHATE.

Valuable / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

TEA-LAURETH-4 PHOSPHATE is a versatile anionic surfactant that functions as an emulsifier, cleansing agent, and wetting agent. It efficiently combines oil and water phases, stabilizing cosmetic formulations while also contributing to skin hydration, softness, and elasticity. Notably, this ingredient holds potential to enhance the skin's absorption of other active ingredients, boosting overall product efficacy.

Summary

Emulsifier Cleansing Agent Wetting Agent Moisturizing Agent Permeation Enhancer

Science

Mechanism of Action

As an anionic surfactant, TEA-LAURETH-4 PHOSPHATE reduces surface tension to stabilize emulsions, ensuring a uniform blend of oil and water in formulations. It acts as a cleansing agent by helping to lift and remove impurities from the skin. Beyond its formulation benefits, it assists in maintaining skin moisture, promoting a supple and elastic feel. Furthermore, its chemical structure may improve the permeability of the skin barrier, facilitating enhanced absorption of other beneficial active compounds.

Research

Clinical Evidence

Medium confidence
Effective range 1.1–3%
Optimal

1%

Key findings

  1. 01 Treats dry skin (xerosis).
  2. 02 Increases active ingredient solubility and enhances skin permeation (5x-30x).
  3. 03 Recommended daily dose for cosmetics, especially sensitive formulas, usually does not exceed 1-2%.

Transparency

Dusting Analysis

Not commonly dusted

No specific data or common misconceptions regarding 'dusting' of TEA-LAURETH-4 PHOSPHATE or its efficacy at lower percentages were found in the provided research.

The Formula

Formulation

Solubility
Both
Optimal pH 1.3 – 4.3
0 7 14

Stability

A 5% aqueous solution of LAURETH-4 PHOSPHATE exhibits an acidic pH range of 1.3-4.3 and demonstrates robust resistance to alkaline environments, indicating good stability across a broad pH spectrum.

Synergies

  • Enhances the absorption and penetration of other active ingredients into the skin, potentially boosting their efficacy.

Conflicts

  • Must be rigorously formulated to prevent the formation of N-nitroso compounds. This is critical because free diethanolamine, derived from the TEA component, can react to create potentially harmful nitrosamines.

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Moderate

The CIR Expert Panel considers Laureth-4 (a component of this ingredient) safe for cosmetic use when products are formulated to be non-irritating. Similarly, TEA and its derivatives, including TEA-LAURETH-4 PHOSPHATE, are deemed safe under current usage practices and concentrations, provided they are non-irritating and free diethanolamine levels are controlled. Formulators must ensure the product environment precludes the formation of N-nitroso compounds. While the ethoxylation process for Laureth-4 can generate trace amounts of 1,4-dioxane, a known animal carcinogen, commercial raw materials undergo purification to remove these byproducts.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

TEA-LAURETH-4 PHOSPHATE is a valuable multifunctional surfactant for precision skincare, effectively stabilizing formulations and cleansing, with a demonstrated potential to enhance the absorption of other active ingredients, provided strict formulation guidelines regarding irritation and nitrosamine formation are adhered to.

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