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C18-22 HYDROXYALKYL HYDROXYPROPYL GUAR.

Valuable / HAIR CONDITIONING, SKIN CONDITIONING

A high-performance, plant-derived polysaccharide that has been hydrophobically modified to enhance both the texture and stability of advanced skincare formulas. It serves as a sophisticated rheology modifier, providing a silky, non-greasy finish while supporting the skin's moisture barrier through the formation of a breathable protective film.

viscosity controlling skin conditioning emulsion stabilising film forming

Science

This ingredient functions as an associative thickener. Its unique molecular structure, featuring long-chain C18-22 alkyl groups, creates an intricate three-dimensional network within the water phase of a formula. This network increases the yield point, allowing it to effectively suspend active particles and stabilize oil-in-water emulsions while delivering a smooth sensory experience upon application.


Research

High confidence
Effective range 0.5–5%
Optimal

1.5%

Key findings

  1. 01 Demonstrated high structural stability over 12 months in polysaccharidic gel matrices while facilitating the delivery of botanical actives.
  2. 02 Confirmed as a non-penetrating, high-molecular-weight polymer that provides skin conditioning without systemic absorption.

Transparency

Not commonly dusted
Min. effective
0.5%
Red flag below
0.1%

As a functional stabilizer and rheology modifier, concentrations below 0.5% may indicate it is being used merely for label claims rather than for its textural or stabilizing benefits.


The Formula

Solubility
Water
Optimal pH 3 – 11
0 7 14

Stability

Highly resilient across a wide pH spectrum. Dispersion efficiency is optimized when the water phase is heated to 40-60°C during hydration.

Synergies

  • Botanical extracts
  • Emollients
  • Humectants

Conflicts

  • Borate ions
  • Excessive electrolyte concentrations

Safety

CIR Status
Safe as used
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

Due to its large molecular size, it does not penetrate the skin barrier, making it exceptionally safe for topical use.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An excellent stabilizing agent that improves formula elegance and active ingredient suspension without irritation.


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