Male hair loss: temples and crown? Then this is genetic pattern baldness, and there's something you can do about it.

The scientific name for this type of hair loss is androgenetic alopecia (AGA for short), and behind it stands a hormone called DHT (full name dihydrotestosterone, which the body produces from testosterone). The follicles that are genetically sensitive to it grow progressively thinner, shorter hairs, until they eventually disappear. The follicles at the temples and crown are the most sensitive, the back of the head almost never goes bald.

If this isn't your picture (sudden onset, even shedding across the whole scalp, or round patches), then this isn't your type, check the pattern selector again.

Microneedling opens temporary microchannels in the skin's top, sealing layer: it triggers a local regenerative response around the follicle. Minoxidil was added alongside this in the studies, not because the stamp "delivers it in."

What we DON'T know: whether a 1 mm home stamp affects minoxidil penetration at all. No one has measured this. If you see a percentage for this somewhere ("1–3% to 20–30%"), it's a made-up number.

The mechanism alone proves nothing. What matters is what was measured in humans, and there, as you'll see next, the studies contradict each other.

What speaks for the Dhurat study: participants were randomized into groups, the assessor evaluating the outcome didn't know who was in which group, it was measured on humans, and not by feel but by counted hairs. What speaks against it: its own title calls it a pilot study, it was small, done at a single clinic, and with a 1.5 mm roller, not a stamp.

What calls for caution: PMID 42190753 (JAAD, 2026), 245 WOMEN, a much larger sample. In this one, microneedling gave no meaningful surplus compared to 2% minoxidil, over 24 weeks. Since only women took part, this is not a refutation for men. Importantly, the Dhurat study above ran with 5% minoxidil for 12 weeks, so the two "minoxidil" cases aren't the same. (The depth also differs: 1.5 mm roller there, a 36-needle cartridge at 0.5–0.55 mm here, and neither is the 1 mm hand stamp.)

What speaks in its favor: a review study that pooled data from 13 earlier studies and a total of 696 patients (38239003) favors the microneedling + minoxidil combination compared to using just one of them. ⚠️ But this same source found nothing at one important point: the difference was detectable in how the physician rated the outcome (judged successful at roughly twice the rate, marked in the paper as RR=2.03). But in how the patient rated it themselves, no, meaning right at the point that matters to you. And a review doesn't replace a large, independent study.

What does this mean for you? That we can't promise you this result, and we won't. There's data for it, there's data against it. These are the facts; the decision is yours. (For women too, the picture is mixed, with two contradicting studies; if that applies to you, here's the women's page.)

The methodology, word for word: "not to apply Minoxidil on the day of procedure and to resume its application only 24 h after" (Dhurat 2013).

The "you can apply it again after half an hour" circulating on forums is a community habit. There's no clinical data behind it. Whether the active ingredient enters differently through the freshly opened microchannels of a 1 mm home stamp, no one has measured that.

The 24-hour pause is NOT there to improve absorption. It's the exact opposite: it's there to prevent it from entering through the freshly opened microchannels. An active ingredient behaves differently on the skin's surface than once it's deep in the skin. Cases have been described where small, persistent inflammatory nodules (medically called granulomas) formed in people who applied something to themselves right after microneedling.

If you're allergic to minoxidil: never with the Dermastamp.