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PEG-75 LANOLIN WAX.

Valuable CAS - / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-75 Lanolin Wax is a water-soluble polyether derivative of lanolin, precisely engineered to function as an effective emulsifier and solubilizer in cosmetic formulations. Beyond its structural contributions, it deeply moisturizes and softens the skin, forming a delicate occlusive layer to maintain hydration. This ingredient demonstrates high tolerability across various skin types, with a low risk of irritation and comedogenicity.

Summary

Emollient Emulsifying Solubilizer Surfactant/Cleansing Viscosity Controlling

Science

Mechanism of Action

This ingredient operates through multiple precise mechanisms to optimize skin and product performance. It functions as an emulsifier, stabilizing oil-in-water mixtures by significantly lowering surface tension. As a solubilizer, it proficiently integrates oil-soluble compounds into aqueous systems. On the skin, it acts as an emollient, lubricating the surface for a soft, smooth feel, and forms a thin occlusive layer to minimize transepidermal water loss, thus sustaining optimal moisture levels. In cleansing formulations, it mitigates the common defatting effect on skin and hair, preserving their integrity without compromising cleansing efficacy. Furthermore, it modulates product viscosity, contributing to desirable rheological properties.

Research

Clinical Evidence

High confidence
Effective range 10–100%
Optimal

15%

Key findings

  1. 01 Comprehensive safety assessments for polyether lanolins, including PEG-75 Lanolin Wax, consistently demonstrate low potential for skin irritation and sensitization across concentrations ranging from 10% to 100%.
  2. 02 One study involving daily 2-3 hour patch tests over four weeks at 100% concentration reported no adverse dermal reactions in 11 subjects.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 2 – 10
0 7 14

Stability

PEG-75 Lanolin Wax exhibits robust stability within a broad pH range of 2 to 10. Its ethoxylated structure ensures complete water solubility, producing optically clear solutions in pure water and aqueous ethanol up to 40%. The nonionic nature of these solutions grants compatibility with most other solubilizers, including electrolyte solutions up to 10%. While generally stable, it is only minimally impacted by strong oxidative or reducing agents. For optimal integration into solutions, it should first be melted, then combined with a three-fold volume of hot water under continuous agitation, functioning effectively as a primary oil-in-water emulsifier.

Synergies

  • Compatible with most other solubilizers
  • Compatible with up to 10% electrolyte solutions

Conflicts

  • Not recommended for individuals with confirmed lanolin allergy due to rare potential for allergic reactions.
  • Not advised for formulations specifically targeting children and pregnant women.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
15%
Pregnancy
Caution
Sensitization risk Low

The CIR Expert Panel affirms PEG-75 Lanolin Wax as safe for use in cosmetic and personal care products, with a maximum reported use concentration of 15%. Trace amounts of 1,4-dioxane, an ethoxylation byproduct, can be managed effectively through purification processes. While generally well-tolerated, rare instances of allergic reactions have been documented, predominantly in individuals with pre-existing lanolin allergies. It is specifically suggested to avoid its use in products intended for children and pregnant individuals.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

PEG-75 Lanolin Wax is a valuable, water-soluble ingredient that excels as an emulsifier, solubilizer, and emollient, offering broad skin compatibility and minimal irritation risk in formulations up to 15%.

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