PMU Scalp Micropigmentation

What is scalp micropigmentation and how is it different from a regular head tattoo?

Scalp micropigmentation is a PMU procedure that replicates the appearance of hair follicles on the scalp using fine pigment dots implanted at a shallow depth. The goal is density illusion — not hair, but the visual impression of a closely shaved head or filled-in hairline. A regular head tattoo goes deeper into the dermis, uses standard tattoo inks, and produces results that spread, fade unevenly, and often shift colour over time on scalp skin. SMP work stays in the upper dermal layer, uses pigments specifically formulated for scalp tissue, and produces dots that hold their shape and colour much longer when done correctly. The difference shows up immediately in the result and becomes more obvious over years — properly executed SMP with the right pigments looks like hair; a standard tattoo on the scalp looks like a tattoo.

Why do SMP pigments need to be specifically formulated for the scalp?

Scalp skin behaves differently from the skin on most other parts of the body. It produces more sebum, gets more direct sun exposure, and has a thicker stratum corneum in areas of active hair growth. Standard tattoo inks aren't calibrated for that environment — they tend to spread laterally in scalp tissue, making follicle dots bloom out over time instead of holding a crisp edge. They also fade unevenly and often shift to blue or green as the pigment breaks down, which is more visible on the scalp than almost anywhere else. SMP-specific formulas like Solid Ink's Billy DeCola line and Perma Blend Micro Dark are developed with the particle size, viscosity, and carrier solution that scalp skin needs — pigment that implants at the right depth, holds dot shape, and fades neutrally rather than shifting colour.

What is the Fitzpatrick scale and why does it matter for SMP shade matching?

The Fitzpatrick scale is a six-point classification system for skin phototype — from Type I (very fair, burns easily, never tans) to Type VI (deeply pigmented, never burns). In SMP work it provides a consistent reference for matching pigment shade to client skin tone and hair colour. The Solid Ink SMP Set by Billy DeCola is organised around this scale — Very Fair (I-II), Fair (II-III), Medium (III-IV), Olive (III-IV), Brown (IV-V), Dark Brown (V-VI) — which means artists can pull the right shade based on where the client sits on the scale rather than eyeballing it against a colour chart. For studios doing consistent volume, a Fitzpatrick-based system makes shade selection faster and more repeatable across multiple sessions on the same client, and across different artists working in the same studio.

What is the difference between Perma Blend Micro Dark and Micro Dark Brown?

Both are dedicated SMP pigments from Perma Blend, but they target different hair colours. Micro Dark is a deep neutral black — the right choice for clients with dark brown to black hair where you need maximum contrast between the scalp and the implanted dots. Micro Dark Brown has a warmer undertone, sitting in the deep brown range, and is the better call for clients with dark brown hair where a pure black would look too stark or artificial against their natural colouring. The practical rule most SMP artists follow: if the client's hair is black or near-black, Micro Dark. If it reads as dark brown in natural light, Micro Dark Brown. Both come in 15ml bottles at the same price point, so keeping both on the shelf is a straightforward decision for any studio doing regular SMP work.

Why do SMP pigments fade or shift colour over time, and how do I prevent it?

Colour shift in SMP — usually to blue, green, or grey — is almost always a pigment formulation problem combined with implant depth. Standard tattoo inks break down in scalp tissue and their base pigments become visible as the carrier breaks down — carbon-based blacks tend to go blue-grey, while organic pigments can shift green. Going too deep pushes pigment into the lower dermis where it diffuses and fades unevenly. Using pigments specifically formulated for SMP — pre-diluted to the right concentration, with particle sizes calibrated for shallow implantation — is the primary way to avoid shift. Sun protection on the scalp after healing also plays a significant role; UV exposure accelerates breakdown in any pigment, and the scalp is one of the most exposed areas on the body.

How often does scalp micropigmentation need to be touched up?

Most SMP results need a touch-up every 2 to 4 years to maintain colour density and dot clarity. The exact timeline depends on sun exposure, skin type, and how well the initial procedure was executed. Clients with oily scalps or significant sun exposure will fade faster — sometimes noticeably within 18 months. Clients who protect the scalp with SPF consistently and have drier skin types can go 4 years or longer before density starts to drop. One thing worth communicating upfront: the initial procedure itself usually requires two to three sessions spaced 7-10 days apart to build the result — the touch-up timeline starts after the full initial course is complete, not after the first session.