How ‘Collagen Injections’ Stimulate Your Skin to Make Its Own Collagen
Creatrip Team
2 months ago
Dermatologic “collagen injections” (e.g., Sculptra and JuveLook Volume) do not contain collagen itself but use biodegradable lactic acid-based polymers to induce the body to produce collagen. Sculptra is poly-L-lactic acid (PLLA), made of L-lactic acid units; injected PLLA particles attract immune cells and fibroblasts that isolate the foreign material and deposit new collagen, restoring skin firmness before PLLA degrades into water and CO2. JuveLook Volume uses poly-D·L-lactic acid (PDLLA), a less-regular mix of D- and L-lactic acids that degrades faster and tends to cause fewer nodules; it also often includes hyaluronic acid (a natural hydrophilic polymer) for immediate volumizing. Oral “low-molecular” collagen supplements provide amino-acid building blocks but do not guarantee collagen formation—adequate sleep, vitamin C, and iron are key to enabling the body to synthesize collagen and delay the need for procedures.
