PEG-7 Amodimethicone

PEG / Ethoxylated

What is PEG-7 Amodimethicone?

PEG-7 Amodimethicone is a synthetic silicone derivative, specifically a polyethylene glycol-modified amino-functional polydimethylsiloxane. It combines the hydrophobic properties of dimethicone with hydrophilic PEG-7 chains and amino groups for better water dispersibility. Primarily used in hair care formulations like shampoos and conditioners, it also appears in skin moisturizers and cleansers. In products, it functions by adsorbing onto hair shafts or skin surfaces, forming a lightweight, flexible film that reduces friction, enhances detangling, and mimics natural sebum for a silky feel. Its PEG modification allows emulsification in water-based systems, enabling even distribution during application and partial rinse-off, while leaving a protective layer for conditioning effects.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 3 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
Hair conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.
Humectant
Attracts and holds water in the stratum corneum, boosting hydration and plumpness; commonly used in moisturizers, cleansers, and hair conditioners.

Benefits

Enhances softness and smoothness on skin and hair by reducing surface friction.

Boosts hydration by drawing moisture to the surface and limiting evaporation.

Improves hair manageability, shine, and ease of styling with a non-greasy finish.

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 better detangling and shine.
Those sensitive to PEG compounds or preferring silicone-free routines.
People with normal to dry skin wanting added slip and emollience in cleansers.
People concerned about potential impurities in ethoxylated ingredients.
Users of rinse-off products looking for lightweight conditioning without buildup.
Individuals with very oily skin opting for minimal occlusive agents.

Safety Notes

  • Rated moderate concern by some databases due to possible contamination risks from manufacturing.
  • Deemed safe for use in cosmetics by expert reviews when formulated properly.

Frequently Asked Questions about PEG-7 Amodimethicone

Is PEG-7 Amodimethicone comedogenic?

It has a low comedogenic rating, unlikely to clog pores.

What products commonly contain it?

Found mainly in shampoos, conditioners, and some skin moisturizers.

Is it suitable for daily use?

Generally well-tolerated in rinse-off products at standard levels.