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RICINOLEAMIDOPROPYL DIMETHYLAMINE LACTATE.

Avoid CAS 118608-59-6 / ANTISTATIC, HAIR CONDITIONING

Ricinoleamidopropyl Dimethylamine Lactate is a cationic surfactant, typically derived from castor oil, recognized for its antistatic and hair conditioning properties. While it also serves as an emulsifier and contributes to cleansing, its suitability for precision skincare, especially in leave-on formulations, is significantly limited by a high potential for sensitization and irritation.

Summary

Antistatic Hair Conditioning Emulsifying Cleansing

Science

Mechanism of Action

This ingredient functions as a cationic surfactant, offering excellent emulsifying, dispersing, and solubilizing capabilities. In hair care, it works by conditioning the hair shaft, making it easier to comb, enhancing softness, shine, and imparting volume. As a surfactant, it contributes to cleansing both skin and hair, and its cationic nature enables it to act as an effective emulsifier in acidic environments.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.3%
Red flag below
0.3%

At a concentration of 0.3% in leave-on formulations, Ricinoleamidopropyl Dimethylamine Lactate has been directly associated with a high potential for contact allergic reactions due to cross-reactivity. This concentration represents a significant 'red flag' for sensitization, rather than an optimal or beneficial dose for skin, especially in leave-on products, indicating that even relatively low levels can be problematic.

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 4.5
0 7 14

Stability

This ingredient is generally stable but is prone to oxidation. Direct contact with strong oxidizing agents can induce combustion. It functions effectively as a cationic emulsifier when formulated within an acidic pH range.

Conflicts

  • strong oxidants

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
0.3%
Sensitization risk High

The CIR Expert Panel considers fatty acid amidopropyl dimethylamines, including Ricinoleamidopropyl Dimethylamine, safe under specific use restrictions to ensure non-sensitizing formulations. However, concentrations of 0.3% in leave-on cosmetics have been strongly linked to contact allergic reactions, with this ingredient being a common cross-reactant. GHS classification indicates it 'Causes skin irritation' and 'Causes serious eye damage'. The stated 'max_concentration' of 0.3% is the level at which sensitization was observed, highlighting its low tolerance in leave-on applications. No specific SCCS opinion or FDA status was found.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

Given its documented high sensitization risk at concentrations as low as 0.3% in leave-on products, alongside GHS classifications for skin irritation and serious eye damage, Ricinoleamidopropyl Dimethylamine Lactate is considered unsuitable for a precision skincare brand, especially in leave-on formulations.

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References

Sources