Trideceth-9 Pg-Amodimethicone

What is Trideceth-9 Pg-Amodimethicone?

Trideceth-9 PG-Amodimethicone is a synthetic conditioning complex featuring amodimethicone, a silicone polymer with amino functional groups for enhanced adhesion to hair and skin. It incorporates trideceth-9, an ethoxylated tridecyl alcohol acting as a nonionic surfactant for emulsification, and propylene glycol, a humectant solvent aiding stability and dispersion. Primarily used in rinse-off hair care products like shampoos and conditioners, it works by depositing a thin, flexible film on hair cuticles and skin surfaces. This film lubricates, minimizing friction and tangles while imparting a silky texture. Its water-dispersible nature prevents residue accumulation, supporting clear rinse properties in formulations.

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

Enhances hair shine and softness by forming a protective lubricating layer.

Reduces static and friction for easier detangling and styling.

Provides mild skin softening in rinse-off applications.

Who It's For

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

Who May Benefit Who Should Avoid
Individuals with dry or frizzy hair seeking lightweight conditioning.
Users with known silicone sensitivities, though rare.
People using frequent hair washing routines needing manageability.
Individuals allergic to propylene glycol components.
Those preferring non-greasy silicones for daily hair care.
People preferring completely silicone-free formulations.

Safety Notes

  • Rated low concern by EWG for overall safety in cosmetics.
  • Deemed safe for use in hair and skin products by cosmetic review experts.

Frequently Asked Questions about Trideceth-9 Pg-Amodimethicone

Is it suitable for oily hair?

Yes, its lightweight, rinsable nature avoids weighing down fine or oily hair.

Does it benefit skin in hair products?

Offers mild conditioning to scalp skin during rinse-off use.

What makes it different from regular silicones?

Amino modification and emulsifiers improve adhesion and water compatibility.