Di-C12-18 Alkyl Dimonium Chloride

What is Di-C12-18 Alkyl Dimonium Chloride?

Di-C12-18 Alkyl Dimonium Chloride is a synthetic quaternary ammonium compound characterized by two C12-18 alkyl chains attached to a dimethylammonium group and a chloride counterion. Derived from fatty alcohols, it falls under dialkyldimonium chlorides commonly employed in rinse-off cosmetics. Found mainly in hair conditioners, shampoos, and some moisturizers, it functions via its cationic nature. The positively charged molecule electrostatically binds to negatively charged hair keratin or skin surfaces, creating a thin lubricating layer. This deposition minimizes inter-fiber friction, static buildup, and surface roughness, promoting easier detangling, enhanced comb-through, and a supple feel. Its amphiphilic structure allows compatibility with various formulations, aiding in even distribution without heavy residue.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Hair conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Supports hair softness and shine by lowering friction.

Helps manage static and tangles for better handleability.

Promotes skin smoothness and flexibility.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
People with dry or frizzy hair seeking easier styling.
Anyone with a history of sensitivity to quaternary ammonium compounds.
Individuals wanting softer, more manageable locks after washing.
People experiencing irritation from similar conditioning agents.
Those looking for lightweight skin conditioning in lotions.
Individuals preferring silicone-free or quat-free products.

Safety Notes

  • Generally recognized as low concern in cosmetic concentrations.
  • Best in rinse-off products to limit potential buildup.

Frequently Asked Questions about Di-C12-18 Alkyl Dimonium Chloride

What does Di-C12-18 Alkyl Dimonium Chloride do in products?

It acts as a conditioning agent, binding to hair and skin to reduce friction and static for smoother results.

Is it safe for daily use?

Safety reviews indicate low risk at cosmetic levels, especially in rinse-off items.

Does it clog pores?

Rated non-comedogenic, suitable for most skin types without pore concerns.