Collagen induction therapy

Collagen induction therapy (CIT), also known as microneedling, dermarolling, or skin needling, is a cosmetic procedure that involves repeatedly puncturing the skin with tiny, sterile needles (microneedling the skin). It is important to distinguish CIT from other contexts in which microneedling devices are used on the skin (e.g., transdermal drug delivery, vaccination).

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