Microneedling, collagen induction therapy, is a cosmetic procedure that involves the use of a device with fine, sterile needles to create controlled micro-injuries in the skin. These tiny punctures stimulate the skin's natural healing process, leading to an increase in collagen and elastin production. 

Collagen and elastin are essential proteins for maintaining skin elasticity and firmness. As the skin heals from these micro-injuries, it becomes smoother, firmer, and more even in tone. Microneedling can improve the appearance of various skin concerns, including fine lines, wrinkles, acne scars, enlarged pores, and stretch marks.

The procedure is often performed by a trained skincare professional and can be used on various areas of the body. It's a minimally invasive treatment that offers a non-surgical way to rejuvenate the skin and improve its texture and overall appearance.