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PEG-8 CAPRATE.

Valuable / SURFACTANT - EMULSIFYING

PEG-8 Caprate is a highly versatile polyoxyethylene glycol ester, celebrated for its multifaceted role in precision skincare formulations. It functions primarily as a skin-conditioning emollient, a non-ionic surfactant, and a solubilizer, contributing significantly to product texture, stability, and ingredient performance.

Emollient Emulsifying Solubilizer Skin-Conditioning Agent Humectant Penetration Enhancer Surfactant

Science

This ingredient operates as an effective skin-conditioning agent, enhancing skin texture and imparting a smooth feel. It acts as a humectant by forming hydrogen bonds with water molecules, thereby binding moisture to the skin, increasing hydration, and mitigating water evaporation. As a non-ionic surfactant and solubilizer, PEG-8 Caprate efficiently dissolves other ingredients, including essential oils and active compounds, into aqueous systems, which improves overall product stability and the effectiveness of formulations. Additionally, it serves as an emulsifier, enabling the homogeneous blending of immiscible oil and water phases, and functions as a penetration enhancer, facilitating the deeper delivery of active components into the skin.


Research

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 PEG-8 Caprylic/Capric Glycerides is considered a safe and effective cosmetic ingredient, valued for its moisturizing, emollient, and emulsifying properties, which support the delivery and efficacy of active ingredients.
  2. 02 In oral studies, dogs administered 1.0 g/kg/day of PEG-8 caprylic/capric glycerides for 13 weeks showed no adverse effects.
  3. 03 Studies indicated no embryotoxicity, fetotoxicity, or teratogenicity from PEG-8 caprylic/capric glycerides at concentrations up to 3000 mg/kg in purified water.

Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH 4 – 7.5
0 7 14

Stability

PEG-8 Caprylic/Capric Glycerides demonstrates robust stability across a wide pH spectrum, optimally performing between pH 4.0 and 7.5 (in a 1:20 concentration). Its potent solubilizing capabilities are crucial for integrating essential oils and various active ingredients into aqueous formulations, and it is highly effective in stabilizing oil-in-water emulsion systems.

Synergies

  • Active ingredients
  • Essential oils
  • Oil-in-water emulsion systems

Safety

CIR Status
Safe as used
Max tested
85%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that PEG-8 Caprylic/Capric Glycerides (and related PEGylated alkyl glycerides) are safe in current cosmetic practices and concentrations, provided formulations are non-irritating. This assessment, updated in 2010, removed previous caveats concerning the use of PEGs on damaged skin. It is also FDA approved for use and holds Generally Recognized as Safe (GRAS) status as a food additive by the US FDA.


Your Skin

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

Our Assessment

Valuable

PEG-8 Caprate is a valuable ingredient, widely recognized for its excellent skin-conditioning, emulsifying, and solubilizing properties, which enhance formulation stability and active ingredient delivery across diverse skincare applications, making it suitable for all skin types.


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