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PPG-90 BUTYL ETHER.

Valuable CAS 9003-13-8 / HAIR CONDITIONING

PPG-90 Butyl Ether is a polypropylene glycol derivative primarily functioning as a skin and hair conditioning agent. It forms a protective, moisturizing film on the skin, enhancing suppleness and reducing dehydration, while also improving product texture and active ingredient delivery.

Summary

Skin Conditioning Agent Solvent Emollient Fragrance Ingredient Solubilizer

Science

Mechanism of Action

PPG-90 Butyl Ether conditions the skin by forming a thin, occlusive film on the surface. This film effectively reduces transepidermal water loss, thereby deeply moisturizing the skin, minimizing flaking, and restoring a smooth, supple texture. Additionally, its solvent and solubilizer properties contribute to enhanced product aesthetics, spreadability, and the efficient incorporation and delivery of other cosmetic ingredients.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 A comprehensive safety assessment for a series of PPG Butyl Ethers, encompassing those with molecular weights related to PPG-90 Butyl Ether, indicated that PPG BE800 (an analog with an average molecular weight of 800) was non-carcinogenic in rats over a two-year period. Furthermore, this analog demonstrated non-irritating and non-sensitizing properties on human skin in a study involving 200 subjects, at concentrations ranging from 0.001% to 0.26%.
  2. 02 Additional human studies on PPG-40 Butyl Ether, another related compound, confirmed it was neither an irritant nor a sensitizer in a repeat-insult patch test conducted with 112 subjects.
  3. 03 The Cosmetic Ingredient Review (CIR) Expert Panel evaluated PPG-14 Butyl Ether, which is commonly incorporated at concentrations between 0.1% to 1% in formulations, and concluded that it did not induce significant skin irritation.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

While no specific optimal pH range for PPG-90 Butyl Ether's stability was identified, a related compound, PPG-14 Butyl Ether, demonstrates stability within a pH range of 5.0 to 7.0 at a 1% concentration.

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel considers PPG Butyl Ethers, including PPG-90 Butyl Ether, safe for use in current cosmetic formulations and concentrations, provided they are formulated to prevent irritation. While clinical testing on related compounds indicated a low risk of irritation, some toxicity data suggests a potential for irritation if not properly formulated. The toxicity of PPG Butyl Ethers generally decreases as their molecular weight increases. There is no specific SCCS opinion or FDA status found for PPG-90 Butyl Ether, but its use in Europe aligns with the general provisions of the EU Cosmetics Regulation.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PPG-90 Butyl Ether is a valuable multifunctional ingredient, offering significant skin conditioning and formulation enhancement benefits with a low risk of irritation when properly formulated.

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