Scalp Micropigmentation

Scalp micropigmentation, usually shortened to SMP, is tattooing tiny dots into the scalp to mimic the appearance of closely shaved hair follicles.

Where you'll meet it

Increasingly offered alongside transplants, sometimes in the same clinic, and still often left out of consultations by surgeons who only do surgery. It is done by practitioners rather than surgeons, usually without any medical qualification, which is worth knowing when you choose one.

What does SMP actually do?

It reduces the contrast between hair and scalp, which is what makes thinning visible. Thousands of tiny pigment dots are placed in the upper layers of the skin, matched to the colour of your hair, so the scalp reads as shaded rather than bare. On a shaved head it creates the look of a close buzz cut with a defined hairline. On a thinning crown or mid-scalp, with longer hair over it, it creates the impression of density without a single graft.

It also camouflages scarring, including an FUT donor line and an over-harvested FUE donor area, which is one of its most useful applications and a common part of repair.

What is the process like?

Usually two to four sessions a week or two apart, each a few hours, building the density gradually. There is no anaesthetic in most cases; people describe it as uncomfortable rather than painful, with some redness for a day or two. There is no recovery in the surgical sense, which is a large part of its appeal compared with a transplant.

What are its limits?

It is pigment, not hair. It has no texture and no length, so it works best on very short hair or as a background behind real hair, and it will not give you something to style. If you keep it with a shaved look, you are committing to shaving regularly so the real stubble matches the dots.

It fades over several years and needs topping up. Poor pigment or poor technique can leave dots that blur, spread or shift colour towards blue or green, and a hairline drawn too low or too straight is as much of a giveaway in ink as in grafts. Removal is possible with laser but slow and not always complete, so the practitioner matters as much as a surgeon would.

How does it fit with a transplant?

Well, in either order. A transplant followed by SMP behind it can make a result that grew well but thin look noticeably fuller. SMP first, with a modest transplant later at the front, is another sensible combination. Most transplant surgeons prefer any SMP in the recipient area to wait until grafts have grown out at around twelve months.

Why is it underrated?

Because it gets less attention than surgery. No donor hair is spent, the cost is a fraction of surgery, and the decision is reversible over time by simply not topping it up. For people with limited donor supply or extensive loss, it plus medication is often the whole answer, and it is worth hearing about at the consultation rather than discovering afterwards.

When choosing someone, ask to see healed work at two years or more, not just fresh results, and ask what pigment they use and what happens if it discolours.

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