Microneedling

Microneedling, also called collagen induction therapy, is a minimally invasive procedure that uses a device fitted with fine needles to create tiny controlled punctures in the upper layers of the skin. These micro-injuries trigger the body's natural wound-healing response, which stimulates the production of collagen and elastin over the following weeks. Devices range from handheld dermarollers to motorized pens, and treatment depth can be adjusted based on the concern and skin area. It is used on the face and sometimes the neck, chest, or body.

A typical session lasts about 30 to 60 minutes, often starting with a numbing cream applied 20 to 30 minutes beforehand to reduce discomfort. During treatment you may feel a scratchy or vibrating sensation. Afterward the skin usually looks red and feels warm, similar to a mild sunburn, for 1 to 3 days. Most people resume normal activities quickly but should avoid makeup, heavy sweating, and sun exposure for a day or two. Results build gradually; many providers recommend a series of 3 to 6 sessions spaced 4 to 6 weeks apart, with improvement in texture and tone appearing over several weeks to months.

Randomized controlled trials and systematic reviews support microneedling for atrophic acne scars, where it produces modest to moderate improvement, especially over multiple sessions. Smaller studies and split-face trials suggest benefit for skin texture, fine lines, and some cases of melasma, though results are more variable. Evidence for combining microneedling with topical agents such as vitamin C or platelet-rich plasma is growing but mixed, and many studies are small with short follow-up. Overall the research quality is moderate, and outcomes depend on device, depth, technique, and number of treatments.

Common short-term effects include redness, swelling, dryness, and flaking. Less common risks include infection, prolonged redness, pigment changes, and scarring, particularly with deep or improper technique. People with active acne breakouts, active skin infections, eczema or psoriasis in the treatment area, a history of keloid scarring, or who are pregnant should generally avoid or postpone treatment. Those prone to cold sores may need preventive medication.