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ALMONDAMIDOPROPYL DIMETHYLAMINE.

Valuable CAS 165586-99-2 / ANTISTATIC

Almondamidopropyl Dimethylamine is an amidoamine derived from almond oil, functioning as a cationic surfactant. It conditions skin and hair by neutralizing negative surface charges and forming a smoothing film.

antistatic skin conditioning hair conditioning emulsifying

Science

At acidic pH, this amidoamine becomes cationic, attracting to negatively charged skin and hair surfaces. This neutralizes static, provides conditioning, and forms a thin film, enhancing 'slip' and smoothness while acting as a mild emulsifier.


Research

Medium confidence
Effective range 0.5–5%
Optimal

0.5%

Key findings

  1. 01 Commercial literature suggests 0.5-5% improves 'slip', wet combing, and delivers a 'good' dry feel on skin and hair.

Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH 3.5 – 6
0 7 14

Stability

It is water-soluble when acidified to form a salt, and oil-soluble as a free base. It is optimally used in acidic formulations (pH <6) to ensure cationic activity.

Conflicts

  • Anionic surfactants
  • Strongly alkaline conditions

Safety

CIR Status
Safe as used
Max tested
0.5%
Sensitization risk Moderate

CIR deems it safe when formulated to be non-sensitizing. However, potential impurities like DMAPA can cause sensitization, leading some databases to restrict its use to 0.5% in rinse-off products and ban it in leave-on formulations.


Your Skin

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

Our Assessment

Valuable

This ingredient is valuable for enhancing sensory feel and conditioning in rinse-off applications, provided strict adherence to formulation guidelines and concentration limits to mitigate potential sensitization risks.


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