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AMODIMETHICONE/MORPHOLINOMETHYL SILSESQUIOXANE COPOLYMER.

Valuable CAS 1293390-78-9 / HAIR CONDITIONING

This amino-functionalized silicone copolymer forms a lightweight, protective film on the skin, smoothing texture and providing long-lasting conditioning. It is also highly effective for hair conditioning and anti-frizz benefits.

Hair conditioning Film forming Skin conditioning

Science

Its amino groups provide a cationic charge, allowing it to attach to negatively charged skin and hair surfaces. This forms a breathable, flexible film that acts as a protective barrier and improves surface texture without buildup.


Research

Medium confidence
Effective range 1–5%
Optimal

N/A

Key findings

  1. 01 SkinSort Ingredient Safety Database (Industry standard assessment)
  2. 02 US Patent 10111820B2 (Procter & Gamble Clinical Hair Assessment)

Transparency

Not commonly dusted

No specific data is available regarding the dusting behavior of this ingredient.


The Formula

Solubility
Both
Optimal pH 4 – 7
0 7 14

Stability

Typically supplied as a water-dispersible microemulsion, this silicone-based polymer is oil-compatible and most stable in slightly acidic to neutral pH environments.

Conflicts

  • High concentrations of strong anionic surfactants (risk of precipitation)
  • Strongly alkaline conditions (pH > 10) may destabilize the emulsion

Safety

CIR Status
Safe as used
Max tested
55.2%
Sensitization risk Low

The CIR Expert Panel deems this polymer safe due to its large molecular weight preventing skin penetration. The highest reported use for similar silsesquioxanes is 55.2%.


Your Skin

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

Our Assessment

Valuable

This versatile amino-functionalized silicone offers excellent film-forming and conditioning benefits for both skin and hair, with a strong safety profile.


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