Scalp micropigmentation, commonly called SMP, is a nonsurgical treatment that uses microneedles (sometimes called nano needles) to embed dots of pigment into the scalp, to mimic the appearance of real hair follicles that have just been shaved. It works by making thinning hairâeven long hairâlook fuller, or creating the illusion of a full head of hair with a buzz cut, on a fully or partially bald head.Â
Think of the treatment as a hair tattoo. It's similar to microblading, another form of cosmetic pigmentation, though microblading uses a manual blade and SMP requires an electric tattoo-like device. While some providers advertise the results as temporary, since they can fade after a few years, scalp micropigmentation is considered permanent. The degree of fading over time depends on the individual and the quality of pigment used.
Scalp tattooing has been done for hundreds of years, but the term SMP was coined by Los Angeles-based hair restoration surgeon Dr. Jae Pak in 2009, to describe the process as an adjunct to hair loss treatments. As the medical community began to accept this form of treatment, the term SMP became universally used in the lexicon of hair restoration.Â
Scalp micropigmentation treatment can work well for people who have lost hair from alopecia areata, aging, male- and female-pattern baldness, hormonal conditions, or cancer. It can fill in a receding hairline or bald patches, make thin hair (including around the temples) look fuller, and hide scars from a hair transplant surgery or injury.Â
Itâs important to find a provider whoâs qualified and experiencedâyouâll want to find a certified facility with hair restoration experts. Doing some research can help immensely in your decision-making process.Â
For the best results, follow these safety guidelines.
- Avoid pop-up locations or facilities that seem unprofessional (e.g., hotel rooms, vacant office buildings, someoneâs home).Â
- While state regulations vary, look for a provider who works in a sterile medical environment, doesnât reuse needles, and wears gloves and a mask during treatment.Â
- Make sure the office clearly shows certification of SMP training as well as compliance with bloodborne pathogen regulations and a county health permit, much like you would see at a tattoo or piercing establishment.Â
- Investigate the providerâs work: check out before and after photos to ensure they can create results that look real and speak with prior clients whoâve had the procedure.Â
âScalp micropigmentation will definitely help by reducing the contrast between your hair and your scalp, giving your hair a more dense look,â says Dr. William Yates, a Chicago-based hair restoration surgeon. âHowever, it requires an expert to be able to select and blend the ink.â


