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Moumoujus

PPG-19-BUTETH-19.

Valuable CAS 9038-95-3 / 9065-63-8 / HAIR CONDITIONING, SKIN CONDITIONING

PPG-19-BUTETH-19 is a multi-functional synthetic polymer that acts primarily as a skin conditioning agent, humectant, and emulsifier. It enhances skin hydration and suppleness by forming a protective film, while also stabilizing diverse cosmetic formulations by blending oil and water phases.

Summary

Skin conditioning Humectant Emulsifying Surfactant Solubilizing Lubricating

Science

Mechanism of Action

This ingredient functions by improving the skin's appearance, particularly dry or compromised skin, by diminishing flaking and restoring a smoother texture. It creates a film on the skin's surface, which significantly reduces transepidermal water loss, thereby conditioning and lubricating to boost hydration. As an emulsifier and surfactant, it plays a critical role in product stability and texture, facilitating the harmonious blending of oil and water phases by lowering surface tension.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of PPG-19-BUTETH-19 at typical use concentrations, provided formulations are designed to be non-irritating. Dermal sensitization was absent in testing, although general irritation concerns persist if not formulated to be non-irritating. A chemically analogous compound, PPG-26-Buteth-26, demonstrated no skin irritation or sensitization in clinical assessments.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 7
0 7 14

Stability

As a polymer, PPG-19-BUTETH-19 exhibits chemical stability under standard operating conditions. However, its integrity can be compromised by exposure to elevated temperatures, extreme pH environments, or ultraviolet (UV) radiation, which may lead to degradation via chain scission, oxidation, or hydrolysis. An optimal pH range of 4.0 to 7.0 is recommended for stability, based on data from a closely related compound, PPG-26-Buteth-26.

Safety

Safety Profile

CIR Status
Safe as used with restrictions
Sensitization risk Low

The CIR Expert Panel concluded that polypropylene glycols (PPGs) with a chain length of ≥3, including PPG-19-BUTETH-19, are safe for use in cosmetic formulations when specifically engineered to be non-irritating. Similar safety assessments apply to other butyl polyoxyalkylene ethers. The FDA permits PPG Buteth ingredients as components of polymers in indirect food contact applications. Manufacturers must ensure the control of trace 1,4-dioxane, a by-product of the ethoxylation process, through rigorous purification.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PPG-19-BUTETH-19 is a valuable multi-functional ingredient for enhancing skin hydration and product stability, provided it is precisely formulated to be non-irritating, ensuring optimal skin compatibility.

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