Does Micro Infusion Work for Hair Growth? What Studies Show

Not proven for home kits. Scalp micro infusion itself has only "a few case reports" behind it¹. Microneedling has better data, but mostly in clinics, at deeper settings, and as an add-on to minoxidil^2,3. No study we found tests an at-home micro infusion hair kit by name (PubMed, searched 24 Oct 2026).

Key points

• A 2025 review of 12 trials found microneedling plus minoxidil raised hair count more than minoxidil alone, but results varied a lot between trials³.
• Studies used needle depths of 0.50 to 2.50 mm². Glov prints 0.25 mm for its hair kit⁵.
• Sessions in studies ran from "once weekly to monthly"². Kits say weekly or every two weeks^5,9,11.
• Kit claims such as "Shuts off DHT" or a "natural alternative to minoxidil" are brand claims^5,11.
• None of the three kits had an FDA 510(k) record we could find on 24 Oct 2026¹⁴.

What micro infusion for hair is

Micro infusion means putting a product into the skin with very fine needles in one step. A 2023 paper by Cortez de Almeida, Melo and Tosti describes a clinic version for the scalp¹. It says the technique "provides a small amount of drugs delivered homogeneously into the skin combined with micro-needling"¹.

Home kits work in a similar way, but with a cosmetic serum, not a drug. You fill a stamp or applicator with serum and press it over thinning areas. Our guide to what micro infusion is covers the face version. For plain needling tools, see derma rollers for the face and microneedling pens.

What the studies show

Scalp microinfusion. The 2023 paper is a short review, not a trial. It says the literature "is limited to a few case reports despite its wide use in some countries"¹. Its conclusion: "Further studies are needed to standardize protocols"¹. One author lists consulting work for several companies, including Monat Global¹.

Microneedling for hair loss. A 2022 systematic review found 22 clinical studies with 1,127 people². As an add-on, microneedling "improved hair parameters" across many hair loss types². In pattern hair loss, the gains came when it was paired with 5% minoxidil, growth factor solutions or PRP². But the authors said the data "are of relatively low quality"². The lead author lists a Perfect Hair Health email address².

Microneedling plus minoxidil. A 2025 meta-analysis looked at 12 randomized trials with 631 people with pattern hair loss³. Adding microneedling to minoxidil "significantly improved hair count compared to minoxidil monotherapy"³. Hair diameter also improved³. But the trials differed a lot from each other (I² = 88%)³. Side effects were more common with microneedling, 74 events vs 59, though most were mild³.

What none of them show. No study we found tests a home micro infusion kit or the serums sold with one. The studies used minoxidil, PRP or growth factors, not the peptide and botanical serums in these kits. So the study results do not transfer to any brand.

Needle depth: studies vs kits

The 2022 review covered needling depths of "0.50-2.50 mm"². The 2025 review found depth did not change hair count results, comparing 1 mm or less with more than 1 mm³. Neither looked at depths below 0.50 mm.

Of the three kits below, Glov prints its depth: "0.25mm gold needles"⁵. That is half the shallowest depth in the 2022 review. We could not compare the other two kits on depth here.

How often

Studies used sessions "from once weekly to monthly"². Kits fall inside that range:

• Glov: the current page says "once every two weeks"⁵. An older Glov page that still loads says "once a week"⁶.
• Microfollic: "One 5-minute session a week"⁹.
• SOREN: "Use once per week for optimal results"¹¹.

More sessions are not better. Follow the kit's own directions.

Downsides and risks

The FDA lists common microneedling risks such as redness, dryness, itching, peeling, bruising and bleeding⁴. Less common risks include infection, skin color changes and cold sores coming back⁴. It says not to use a microneedling device if you have an active infection, rash or cold sore, or have used isotretinoin in the last 6 months⁴. It also warns that "re-use of the needle cartridge is unsafe"⁴.

That last point matters for one kit. SOREN's FAQ says "each needle head is intended for a single user for up to four weekly treatments before it must be discarded"¹¹. Glov and Microfollic say their heads are single use^8,9.

SOREN's page also says "No side effects"¹¹. The 2025 review reported side effects with microneedling, even if mostly mild³. Treat "No side effects" as a brand claim.

When to see a dermatologist

See a dermatologist before you buy a kit if your hair loss is sudden, patchy, or comes with itching, pain, redness or scaling. These can be signs of a condition that needs a diagnosis, not a serum. See one too if you already use minoxidil or another treatment, so you can ask whether needling fits in. Stop and get checked if you get pus, swelling that grows after 2 days, or fever⁴.

Example kits and what they cost

Brands below are examples, in alphabetical order. Prices are one-time prices on each brand's site, checked 24 Oct 2026. This is not a ranking. For a closer look at single kits, see our Glov hair regrowth review and Microfollic review.

Notes. Glov $69 / 2, $149 / 6, $229 / 12 treatments⁵; 120 days in its refund policy⁷. Microfollic $99 / 4, $159 / 12⁹. SOREN $69.95 / 4, $103.95 / 8, $123.95 / 12 vials¹¹; 90 days from delivery¹². FDA searches¹⁴.

Glov. The serum lists acetyl tetrapeptide-3, copper tripeptide-1, caffeine and biotin⁵. The page calls rosemary a "natural alternative to minoxidil", which is a brand claim⁵. The downside: Glov's pages do not agree. An older page that still loads sells a $149 kit with "(4) Hair Regrowth Micro-Infusion Device (12) Glov Hair Regrowth Serums", says "once a week" and offers a "30-Day Money-Back Guarantee"⁶. On Amazon, the kit is $149 for four sessions and rated 3.9 out of 5 from 170 reviews (checked 24 Oct 2026)⁸.

Microfollic. The page names Procapil and Capixyl, two branded peptide complexes, as key ingredients⁹. A one-month kit has "4 sterile heads and 4 serum vials, providing 4 applications"⁹. With a subscription, the price drops to $79 for 4 or $126 for 12, which is $19.75 or $10.50 a session⁹. The downsides: returns need the product "sealed, unused, and in its original packaging" within 30 days¹⁰. The 90-day guarantee refunds "your purchase (shipping excluded)"⁹. The 1,276 reviews shown are on Microfollic's own site⁹, and we found no independent rating to compare.

SOREN. The page is aimed at men and says "Shuts off DHT", a brand claim we could not verify¹¹. It also says "These statements have not been evaluated by the FDA"¹¹. The downsides: heads are reused for up to four treatments, as noted above¹¹. The price on the page, $69.95 for one month, does not match the $58.46 in the store's product data¹¹. On Amazon, a 3-month kit is $79.99 and rated 3.8 out of 5 from 318 reviews (checked 24 Oct 2026)¹³.

Last checked 24 Oct 2026.