Dermaroller Hair Growth Tricho-Boost

A systematic review published in Dermatology and Therapy (English et al., 2022), encompassing 22 clinical studies and 1,127 participants, concluded that microneedling yields generally favorable results as an adjunct treatment for androgenetic alopecia—that is, in combination with another treatment, most often 5% minoxidil. The authors themselves emphasize that the level of evidence remains moderate and that larger randomized trials are needed. At home, using a 0,5 mm roller, microneedling creates microchannels that improve the penetration of subsequently applied treatments. It is an optimization step in a hair loss routine , not a standalone treatment.

0,5 mm. This is the length that penetrates the stratum corneum and improves the penetration of active ingredients without reaching the depths where the procedure becomes a medical act. Below 0,3 mm, the effect on penetration becomes marginal. Beyond 1 mm, the dermaroller requires professional use, with surface anesthesia and a strict aseptic protocol—it's no longer a bathroom routine.

One to three times a week, two to five minutes, no more. The skin needs time to close the micro-channels between treatments: frequent sessions only exacerbate irritation instead of providing stimulation. Use a grid pattern—a few passes in vertical lines, then horizontal lines, then diagonally across each area—without going over the same spot twenty times.

At 0,5 mm, the sensation is tingling, sometimes a slight warmth, and diffuse redness may appear for a few hours. There should be no bleeding. Spots of blood mean you are pressing too hard: the weight of the roller is sufficient; it's the length of the needles that does the work, not the pressure. Sharp pain is also a signal to stop.

A minimum of three months is required, and this is a biological constraint, not a commercial one: hair grows approximately one centimeter per month, and a stimulated follicle must complete its cycle before producing a visible shaft. A "before/after" photo taken at six weeks therefore demonstrates nothing more than a change in lighting. Always photograph the same area, from the same distance, with the same lighting, and compare the results at three and then six months.

A leave-in treatment, applied immediately afterward while the micro-channels are open—that's the whole point. A water-based scalp serum is ideal. However, avoid any product containing alcohol, pure essential oils, or perfumes right after application: on permeable skin, they can be irritating.

Soak the head in 70% isopropyl alcohol for five to ten minutes before and after each use, then let it air dry—do not wipe it, as this bends the needles. Never share it, even within the same household. Replace it as soon as the needles become dull, bent, or snag: a worn roller scratches the skin instead of piercing it cleanly, which is exactly what we want to avoid.

No, and this is the most important contraindication. On inflamed, scaly, damaged, or pustular skin, microneedles worsen the reaction and can trigger new lesions in the traumatized area: this is the Koebner phenomenon, well-documented in psoriasis. The skin must first be treated with a suitable scalp psoriasis treatment , and then the dermaroller can be reintroduced once the skin has calmed down.

Do not operate on the grafted area until healing is complete and the grafts are firmly anchored—early intervention can dislodge them. The decision to resume surgery is made in consultation with the surgeon who performed the procedure, never alone, and the timeframe varies depending on the technique and the area. Our post-transplant care guidelines detail the stages of the healing period.

The dermaroller creates a small perforation, then you apply the treatment on top: penetration depends on how quickly the micro-channels close. Micro-infusion delivers the serum through the needles, directly into the channel, at the very moment of perforation. The dermaroller is the accessible maintenance method; micro-infusion is the next step, for established hair loss.