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Moumoujus

PEG-8 HYALURONATE.

Questionable / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

PEG-8 Hyaluronate is a hybrid ingredient combining polyethylene glycol (PEG-8) and hyaluronic acid, designed to deeply hydrate the skin, improve texture, and potentially enhance the absorption of other active compounds. It functions primarily as a humectant and skin conditioner.

Summary

Skin Conditioning Humectant Emollient Solvent

Science

Mechanism of Action

This ingredient leverages the humectant properties of both its components. PEG-8 actively draws moisture to the skin's surface, forming a barrier through hydrogen bonding to minimize transepidermal water loss. It also functions as a solvent, potentially improving the delivery of co-formulated active ingredients. Hyaluronic acid further augments hydration by retaining water within the skin, which contributes to increased elasticity and a smoother appearance, thereby reducing the visibility of fine lines and wrinkles.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 7.5
0 7 14

Stability

PEG-8 Hyaluronate demonstrates stability within a pH range of 4.5 to 7.5, contributing to overall product longevity and maintaining textural integrity across varied temperatures. Its hyaluronic acid component benefits from higher water content for enhanced stability near a neutral pH.

Conflicts

  • Carbomer-based thickeners (can compromise their thickening performance)
  • Emulsifiers (may destabilize oil-in-water systems, potentially causing phase separation)
  • Compromised skin (broken, irritated, or sensitive skin types should avoid formulations containing this ingredient)

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
85%
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed PEG-8 safe for topical application on healthy skin up to an 85% concentration. However, PEGs may contain impurities such as ethylene oxide and 1,4-dioxane, both recognized carcinogens. Formulations with PEGs, including PEG-8, are contraindicated for use on broken, irritated, or sensitive skin to mitigate potential absorption and kidney toxicity, which has been observed in severe cases like burn patients treated with PEG-based antimicrobial creams.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

While offering robust hydration and skin conditioning for healthy skin, the potential for manufacturing impurities and the critical restriction against use on compromised or sensitive skin make PEG-8 Hyaluronate a questionable ingredient for universal precision skincare.

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