Radiesse is a calcium hydroxylapatite (CaHA) filler that is FDA-approved for the correction of facial wrinkles and folds. It works by stimulating the body’s natural collagen production for long lasting results. Unlike hyaluronic acid based (HA) fillers that only add volume and hydration to the skin, Radiesse is a bio-stimulatory filler. It stimulates collagen production and provides immediate volume while promoting long-term tissue regeneration.