Microblading or Machine PMU: How to Choose the Right One

Start with what the two words mean

Microblading uses a hand-held blade pen to draw fine strokes one at a time. Machine PMU uses an electric pen with a cartridge needle to implant pigment point by point or line by line.

These are not old and new. They are two tool paths with the same objective — the appearance of hair strokes or shading on the brow — reached with different tools.

That difference lands somewhere clinical: a review of cosmetic tattooing records that fibrosis and scarring are seen especially after microblading. Both routes traumatise skin, so the question worth asking is how the practitioner controls depth and intensity — not which route is inherently safer.

Three differences that change the decision

1. Control mechanism and wound form. A blade makes an incisional cut; a cartridge makes punctures. That is the difference in wound form between the two paths.

2. The available geometries differ. The manual route's consumable is a blade: ATTO lists microblading needles at 0.18 mm and 0.25 mm across configurations from 7CF to 18U. The machine route's consumable is a cartridge: the 1R single needle runs across eight diameters from 0.16 mm, alongside RL, RS, Flat, MG, CM, XF and 0411U groupings.

The two routes list different options in the catalogue, which can be compared field by field.

Browse ATTO microblading needles and kits Browse ATTO PMU cartridges by interface and configuration

3. Interface compatibility applies to the machine route only. A blade has no interface to get wrong. A cartridge does: PMU cartridges come in universal-style and BMX screw connections, and they do not interchange. Choosing a machine means choosing an interface ecosystem, and that decision comes before buying needles.

Combining the two routes is legitimate

Using the two routes in sequence within the same area is usually described as combination brows. Two boundaries are worth stating:

• It is a combination of tools, not a guarantee of an outcome. It does not automatically produce a more stable result.
• It cannot be layered onto a design for free. Both routes are tattoos. Pigment stays in the body, and both fall into the difficult-to-correct category.

ATTO carries consumables for both routes, so the combination is executable at the tool level. Whether to combine is a judgement about the client's skin and the practitioner's technique, not a pricing strategy.

How long it lasts: no figure

There is no figure worth giving here. What the verifiable sources do say is different:

• the FDA states that PMU is a type of tattoo and that no colour additive is approved for injection into the skin, and that tattoos and permanent makeup are not easily removed;
• ECHA notes that chemicals in these inks can remain in the body for life and that pigment particles can migrate to organs such as lymph nodes;
• the clinical literature lists fading and colour shift as late-onset complications.

So the workable substitute is to ask when the review appointment falls and which shades would be used for correction, rather than how many years it lasts.

Skin type: verify rather than assert

The industry carries a lot of claims about skin type and pigment retention — that oily skin holds fine lines less well, for example. Those claims are worth hearing, but more useful is turning them into a request you can check: ask for healed cases on a skin type similar to yours. If the practitioner cannot produce comparable examples, that itself is your answer.

For the wider brow picture, see the companion piece on approaching sparse brows.

Side by side

The bottom line

The choice does not sit in "which technique is better". It sits in checkable conditions: whether the target result calls for strokes or shading, what options each route lists for its consumables in the catalogue, and which consumable ecosystem you are committing to.