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Moumoujus

PENTAERYTHRITYL STEARATES.

Valuable / HAIR FIXING

Pentaerythrityl Stearates are multi-functional emollients known for their ability to hydrate, soften, and enhance skin elasticity. This ingredient establishes a protective barrier on the skin, effectively minimizing moisture loss and contributing to a smooth, silky skin feel. It also serves as an effective skin conditioning agent.

Summary

emollient emulsifying surfactant skin conditioning

Science

Mechanism of Action

Pentaerythrityl Stearates function by forming an occlusive yet breathable layer on the skin's surface, which significantly aids in moisture retention and reinforces the skin's natural barrier. This action results in increased hydration, improved skin softness, and enhanced elasticity, while creating a silky tactile experience. It actively protects against environmental stressors and prevents trans-epidermal moisture loss. Additionally, in formulations, it acts as a stabilizing agent, improving product consistency and preventing ingredient separation.

Research

Clinical Evidence

Low confidence
Effective range 1.8–55%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Pentaerythrityl Stearates exhibit robust thermal stability, with no significant weight loss detected at temperatures up to 350°C, indicating good auxiliary thermal stability. This ingredient is known to blend effectively with various other active components, enhancing product consistency and overall formula stability by preventing component separation.

Synergies

  • Many active ingredients

Safety

Safety Profile

CIR Status
Safe as used
Max tested
55%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that Pentaerythrityl Tetraisostearate and other related pentaerythrityl tetraester compounds, including Pentaerythrityl Tetrastearate, are safe for use in cosmetics at their reported concentrations. Maximum reported use concentrations for Pentaerythrityl Tetraisostearate in leave-on products reached up to 55%. For PEG-150 Pentaerythrityl Tetrastearate, the CIR Panel deemed it safe up to 5% in rinse-off and 1.8% in leave-on products. Pentaerythrityl Tetrastearate is also recognized by the FDA as a Food Contact Substance. No SCCS assessment data was available for Pentaerythrityl Stearates.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

Pentaerythrityl Stearates are valuable emollients and conditioning agents, well-tolerated across all skin types, offering significant hydrating and barrier-strengthening benefits with a low risk of irritation or comedogenicity.

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