Glycosaminoglycans sits in the humectant category, but the reason it works is specific. Polysaccharides in extracellular matrix; bind water; support structural integrity.
The scientific name is Hyaluronic Acid, Chondroitin, etc.. Polysaccharides in extracellular matrix; bind water; support structural integrity. This mechanism is consistent across properly formulated products, which means the real variable is concentration and delivery system.
Typical working concentration is variable. Best suited to all skin types skin. Primary applications: hydration, anti-aging, plumping.
Works well with: Peptides, ceramides.
HA is most abundant; others include dermatan sulfate, heparan sulfate.