Permanent Make-up

Microblading: hair strokes by hand

Microblading draws individual brow hairs with a hand-held blade instead of a tattoo machine, placing pigment only about 0.5 to 1 millimetre into the skin so the strokes look softer than shaded permanent make-up. That shallow depth is also why the colour fades faster: most people get 12 to 18 months of wear against 1 to 3 years for machine-shaded brows, and a touch-up 4 to 6 weeks after the first session is part of the process, not an optional extra. It suits dry to normal skin; on oily or large-pored skin the fine strokes blur within months.

The blade instead of the machine

A tattoo machine drives a single needle up and down hundreds of times a minute; microblading uses a hand tool tipped with a row of 10 to 18 tiny needles arranged along one edge, closer to a scalpel than a pen. The technician drags that edge through the skin in short, angled strokes that follow the direction hair actually grows, which is why a well-done set of brows reads as individual hairs rather than a block of colour. Because every stroke is placed by hand and by eye, the technique rewards a steady hand and a slow pace far more than raw session count.

The blade also cuts shallower than a machine. Pigment ends up roughly 0.5 to 1 millimetre into the skin, in the upper dermis, while a rotary or coil machine used for shaded brows or flat permanent make-up typically reaches 1.5 to 2 millimetres. That shallower placement is exactly what makes the strokes look natural, and exactly what makes them fade: the immune system clears pigment sitting close to the surface faster than pigment banked deeper in the dermis. On oily or large-pored skin the effect is worse, because sebum spreads the pigment sideways under the skin and single hairs blur into a smudge within a few months, so most studios steer that skin type toward shaded or combination brows instead.

A session, a touch-up and a two-week dip

The appointment starts with 20 to 40 minutes of measuring and drawing the shape on dry skin, checked from several angles in a hand mirror before any anaesthetic goes on. Numbing cream needs another 20 to 30 minutes to take effect, and only then does the actual bladework begin: 90 to 150 minutes in total for the visit, most of it spent on shape and colour rather than on cutting. A second, shorter pass, the perfecting session, follows 4 to 6 weeks later to fill in strokes that healed lighter than expected; skipping it is the single most common reason people end up with patchy brows.

Healing runs on its own schedule regardless of how careful the first session was. For the first 24 to 48 hours the brows should stay dry, then light flaking starts around day 3 to 5 as the top skin layer sheds. Colour looks 30 to 50 percent too dark in week 1 and then swings the other way, appearing washed out by day 7 to 10, before settling into its true tone from around week 4. Because the perfecting session happens inside that window, the honest final result only shows itself 8 to 10 weeks after the very first appointment, not after the first visit alone.

What the numbers say about safety

The blade itself should be a single-use, individually sealed item opened in front of the client, exactly like a needle at a blood draw; there is no professional reason to reuse one. Pigment is the less obvious risk. A US laboratory tested 47 sealed permanent make-up inks from 9 manufacturers and found 9 of them, 19 percent, already contaminated with bacteria before the seal was broken, including 3 of 18 inks that were labelled sterile on the bottle; contamination ran up to 980 colony-forming units per gram in the worst sample. That is a reason to ask which brand is used and whether the pot is opened at the table, not a reason to assume any one studio is at fault.

Rarer but more serious reactions do turn up in the medical literature: more than 20 published cases describe cutaneous sarcoidosis, an inflammatory nodule reaction, appearing months to years after cosmetic eyebrow tattooing, alongside occasional granulomas and allergic contact dermatitis. None of that is common, but it is why studios decline to work on blood clotting disorders, active keloid tendency, acute skin disease in the treatment area, pregnancy or breastfeeding, a course of isotretinoin in the past 6 to 12 months, and skin that has had a chemical peel or facial laser session in the last 2 to 4 weeks.

The chemistry behind the pigment

Since 4 January 2022, EU chemicals law has restricted thousands of hazardous substances, including carcinogens and skin sensitisers, from tattoo and permanent make-up inks under the REACH regulation, following a scientific review that had flagged their presence in commercial pigments across Europe. Two widely used colourants, Pigment Blue 15:3 and Pigment Green 7, were given a 1-year extension because no proven substitute existed yet and were only added to the restriction from 4 January 2023. A studio working with current stock should have no trouble naming the pigment brand and showing that it complies.

If the result still needs correcting later, removal runs on a slower clock than the treatment itself. Dermatology guidance on tattoo pigment describes typical laser removal courses of 5 to 12 sessions spaced 6 to 8 weeks apart, which is worth knowing before a first set of brows rather than after, especially for anyone considering a full change of shape covered in the removal guide or a reshape covered in the eyebrow shaping guide.

Questions to ask before you book

Frequently asked

How long does microblading actually last?

Most people see 12 to 18 months before the strokes need refreshing, shorter on oily skin. That is because the blade places pigment only 0.5 to 1 millimetre deep, well above the 1.5 to 2 millimetres a machine reaches for shaded brows.

Is the touch-up really necessary?

Yes. Colour keeps fading for the first 4 weeks after the session, and without the perfecting pass at 4 to 6 weeks the healed strokes stay visibly patchy.

Can I get microblading with oily or large-pored skin?

Most studios advise against it, because sebum spreads the pigment sideways and single strokes blur into a smudge within a few months. Machine-shaded brows, which last 1 to 3 years, tend to hold up better on this skin type.

Are the pigments regulated?

Yes. EU chemicals law has restricted hazardous substances in tattoo and permanent make-up pigments since 4 January 2022, and 2 further colourants, Pigment Blue 15:3 and Pigment Green 7, were added to the ban from 4 January 2023.

Is contaminated ink a real risk?

It has been measured: a US laboratory survey found 9 of 47 sealed permanent make-up inks, 19 percent, already carrying bacteria before opening. Asking to see the sealed pot opened at the table is a reasonable request, not an overreaction.

Can microblading be removed if I do not like it?

Yes, usually with a laser. Dermatology sources describe typical courses of 5 to 12 sessions spaced 6 to 8 weeks apart to clear cosmetic pigment.

Sources

• Tattoo inks and permanent make-up (ECHA) · REACH restriction on hazardous substances in tattoo and permanent make-up pigments applying since 4 January 2022, with Pigment Blue 15:3 and Pigment Green 7 added from 4 January 2023; the page returns 403 to automated requests behind an Azure firewall but is the official ECHA page, and the dates are confirmed in ECHA's own news releases
• Eyebrow Microblading: Science, Art, and Complications · pigment fading noted around day 7 to 10 after the session, and more than 20 published cases of cutaneous sarcoidosis after cosmetic eyebrow tattooing
• Microbiological Survey of 47 Permanent Makeup Inks Available in the United States · 9 of 47 sealed inks from 5 manufacturers contaminated with bacteria, 19 percent overall, including 3 of 18 inks labelled sterile, up to 980 CFU per gram
• Tattoo-associated skin reactions (DermNet) · acute inflammatory reactions resolving within 2 to 3 weeks, laser removal typically needing 5 to 12 sessions at 6 to 8 week intervals

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This guide is for general information. It does not replace medical or professional cosmetic advice or an examination.