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Moumoujus

C12-15 PARETH-2.

Valuable CAS 68131-39-5 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

C12-15 Pareth-2 is a non-ionic surfactant and emulsifier widely utilized for its cleansing and stabilizing properties in cosmetic formulations. It also enhances the penetration of other active ingredients in topical delivery systems.

Summary

surfactant/cleansing emulsifying

Science

Mechanism of Action

Possessing an amphiphilic structure with a lipophilic C12-15 chain and a hydrophilic PEG-2 head, it reduces interfacial tension between oil and water. This enables effective emulsification of sebum and debris for removal, or stabilization of both oil-in-water and water-in-oil emulsions.

Research

Clinical Evidence

Medium confidence
Effective range 0.1–5%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH 5 – 7
0 7 14

Stability

This highly stable non-ionic surfactant lacks ester or amide bonds, making it resistant to hydrolysis and stable across a wide pH range of approximately 3-11.

Conflicts

  • Strong oxidizing agents
  • Strong bases

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

The CIR Expert Panel concluded C12-15 Pareth-2 is safe for cosmetic use when formulated to be non-irritating. Typical leave-on product limits are around 10%.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

C12-15 Pareth-2 is a versatile and safe non-ionic surfactant, highly valuable for its effective cleansing, emulsifying, and penetration-enhancing properties across various skincare formulations.

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References

Sources