What it actually is
The spicules are siliceous — silica-based — and come from freshwater sponges. Each one is between 100 and 150 micrometres long, far too small to see, with a fine crystalline structure. Massaged into the skin, they pass through the epidermis and reach as far as the papillary dermis, where they wake up the fibroblasts: the cells that make your collagen and elastin. That is the whole mechanism. No electricity, no needles, no heat.






