CaHA vs HA Fillers: What’s the Difference?

Two common categories — HA fillers and CaHA biostimulators — do different jobs, and knowing which is which helps set expectations.

Hyaluronic acid (HA)

HA fillers add immediate volume and hydration, and the result is visible right away.

Calcium hydroxyapatite (CaHA)

CaHA works more as a biostimulator: the microspheres act as a scaffold that the body's own tissue can build collagen around, so part of the effect develops gradually.

Choosing

HA is about immediate correction; CaHA combines some immediate effect with a slower, collagen-driven change. BeautyRay stocks CaHA options such as Volassom and ULTRA CA+.