As the name suggests, microneedling uses fine needles that prick your skin. During the skin-pricking process, your skin produces more collagenin an effort to heal the small wounds from the needles.
The theory is that new collagen that’s formed will help smooth out your skin’s appearance, helping to fill in fine lines, wrinkles, and scars. To that end, skin needling may be used for:
- burn scars
- acne scars
- surgical scars
- sun damage
- stretch marks
- sagging skin
- large pores
- hair loss
According to the American Academy of Dermatology, microneedling works best for depressed — not raised — acne scars. This has to do with the collagen-inducing effects. If you have raised acne scars, you already have excess collagen in the area.
Some studies have also noted that the effects of skin needling on acne scars are even better when the treatments are combined with vitamin C or PRP.
Unlike other minimally invasive skin corrective treatments, such as laser therapy, microneedling is considered safe for darker skin tones. This is because it doesn’t damage or remove the outer layer of skin. Microneedling is also considered safe for thin and sensitive skin as well.