Coconut Fatty Acid Propylamino Dimethylamine is an amine-based amide derived from the natural fatty acids of coconut oil. In this compound, coconut fatty acid (mainly lauric acid) reacts with dimethylaminopropylamine (DMAPA) to form an amide linkage. It acts as an effective cationic or amphoteric surfactant in formulations for personal care, cleansing, cosmetic, and hair care products.

Chemical Structure

Base structure: Coconut fatty acid (C12–C14, primarily lauric acid)
Functional group: Propylamino dimethylamine (containing both an amide group and a tertiary amine)
Type of bond: Amide linkage between the carboxylic group of the fatty acid and the amine group
Structural behavior: In acidic environments, the molecule becomes protonated and carries a positive charge, acting as an effective cationic surfactant. In some formulations, it may also behave as an amphoteric surfactant.

Physical and Chemical Properties

Physical state: Clear to pale yellow viscous liquid
pH (1% solution): Approximately 9–10
Odor: Mild, with a light amine scent
Ionic nature: Amphoteric at neutral pH; cationic under acidic conditions
Surfactant properties: Yes — moderate foaming ability with excellent conditioning effects
Molecular formula: Approx. C17H36N2O (varies depending on fatty acid composition)

Applications of Coconut Fatty Acid Propylamino Dimethylamine

In Shampoos and Conditioners

Provides antistatic properties
Enhances softness, shine, and combability of hair
Compatible with low-pH formulations — ideal for damaged hair

In Body and Facial Cleansers

Suitable for sensitive skin
Improves foam stability and skin smoothness

In Makeup Removers and Cleansing Products

Skin-friendly with low irritation potential
Helps emulsify oily residues for better cleansing performance

In Pet Care Products

Mild yet effective on animal skin and fur
Non-irritating to thin or delicate skin

✅ Advantages

Mild and low-irritation: Suitable for sensitive skin
Cationic nature: Ideal for hair conditioning and softness
Acidic pH compatibility: Superior to typical anionic surfactants
Natural origin: Derived from coconut oil
Highly biodegradable: Eco-friendly and sustainable
Affinity to hair keratin: Forms a smooth, soft film on hair for lasting conditioning

❌ Disadvantages

Relatively high cost compared to conventional anionic surfactants
Reduced performance in strongly alkaline environments (high pH)
Potential for mild skin sensitivity at high concentrations or with frequent exposure
Possible contamination with amidoamine (a known irritant) in raw materials, which must be removed during quality control