Hydroxypropyl Cyclodextrin

TL;DR. It acts as a solubilizing and encapsulating aid, forming inclusion complexes that help disperse fragrance, oily actives, and odor molecules in water-based formulas.

What does Hydroxypropyl Cyclodextrin do in a cosmetic formula?

It acts as a solubilizing and encapsulating aid, forming inclusion complexes that help disperse fragrance, oily actives, and odor molecules in water-based formulas.

Is Hydroxypropyl Cyclodextrin clean?

From a clean-beauty standpoint, this ingredient is usually low-irritation and is not a common restricted-list trigger. The main watchpoint is manufacturing quality, especially tight control of residual alkylating reagent and residual solvents.

Is Hydroxypropyl Cyclodextrin sustainable?

This material starts from a starch-derived carbohydrate backbone, then is chemically modified for higher water solubility and performance. It is generally considered biodegradable, with lower persistence concerns than many synthetic film-formers or silicones.

Is Hydroxypropyl Cyclodextrin COSMOS-approved?

COSMOS acceptance is documentation-dependent rather than automatic, because the material is chemically modified and may include a petrochemical-derived reagent in processing. Its Green Chemistry profile is mixed, with a renewable carbohydrate base and useful water solubility, balanced by added synthetic processing steps and residue controls.

How does Hydroxypropyl Cyclodextrin work chemically?

The molecule is a ring-shaped glucose oligomer with an internal hydrophobic cavity and exterior ether and alcohol groups, which lets it bind small guest molecules while remaining water soluble. Typical use is about 0.1 to 5% as a solubilizer or stabilizer, and it is broadly stable across normal cosmetic pH ranges, though complexing can change scent release or active availability.

Last updated 2026-05-13