Collagen Stimulation
Collagen stimulation is the biological process by which controlled heat or micro-injury in the skin's dermis triggers fibroblast cells to produce new collagen and elastin fibres. Collagen makes up around three-quarters of the skin's dry weight and is the protein largely responsible for firmness and structure; elastin works alongside it to provide bounce and recoil. As we age, natural collagen production slows and existing fibres break down faster than they're replaced, which is a major driver of visible sagging and fine lines. HIFU stimulates collagen by delivering focused thermal energy to the dermis at a specific depth, prompting the skin's own repair mechanisms to activate in that zone. Unlike topical products, which work on the skin's surface, this response happens within the tissue itself, which is why the improvement in firmness and elasticity typically continues to develop gradually over several weeks to months after a session, rather than appearing immediately.