Frequently Asked Questions

It's a 0.5mm microneedle device with pre-filled serum cartridges. Each single-use cartridge contains 5ml of serum loaded with six hair growth actives at published clinical concentrations. The microneedles create hundreds of microchannels in the scalp while simultaneously dispensing serum directly into the upper dermis — bypassing the stratum corneum (the dead-skin barrier that blocks 95%+ of topical products) and delivering the formula right where the dermal papilla and follicle stem cells live. Think of it as a clinical-grade hair restoration treatment you do at home, every 7-10 days, in about five minutes.

Six actives, all at published clinical concentrations: Redensyl at 3.0% (targets hair follicle stem cells, promotes anagen re-entry), Capixyl at 2.5% (Acetyl Tetrapeptide-3 + Red Clover Extract for ECM remodeling and DHT modulation), Procapil at 2.5% (Biotinyl-GHK + Apigenin + Oleanolic Acid for DHT inhibition and follicle anchoring), Adenosine at 0.75% (anagen prolongation — the exact concentration from the landmark Japanese clinical trials), GHK-Cu (Copper Tripeptide-1) at 0.05% (follicle regeneration via Wnt/beta-catenin signaling), and Caffeine at 0.5% (counteracts testosterone-driven follicle suppression). Total active load is approximately 11.5%. We also include Panthenol (1.5%), Zinc PCA (0.2%), Allantoin (0.5%), and Arginine (0.5%) for scalp health and post-treatment recovery. We publish every percentage because we have nothing to hide.

Delivery. Topical serums lose 95% or more of their active ingredients to the skin barrier — the stratum corneum, a layer of dead cells that exists specifically to keep things out. Your serum sits on the surface and the actives never reach the dermal papilla where hair growth actually happens. Our 0.5mm microneedles create microchannels that bypass the stratum corneum entirely, delivering the full formula directly into the upper dermis. This means 2.5% Capixyl delivered intradermally is more effective than 5% Capixyl sitting on the surface. Delivery matters more than dosage. It's the reason competitors with higher total active loads on paper still underperform — their actives never get where they need to go.

RCP stands for Redensyl, Capixyl, and Procapil — three proprietary peptide complexes that each target hair loss through different biological mechanisms. Redensyl activates outer root sheath stem cells (ORSc) and promotes anagen re-entry. Capixyl combines Acetyl Tetrapeptide-3 with Red Clover Extract for ECM remodeling and DHT modulation via the isoflavone biochanin A. Procapil uses Biotinyl-GHK, Apigenin, and Oleanolic Acid to inhibit 5-alpha-reductase at the follicle level and improve follicle anchoring. Research suggests that using all three together produces better results than any single peptide complex alone. We're the only microneedle-delivered product that includes the full RCP trio at published clinical concentrations.

Because we deliver it intradermally, not topically. Some competitors use GHK-Cu at 5-10% in topical serums, but the vast majority of that never penetrates the skin barrier. Our 0.05% GHK-Cu is delivered directly into the upper dermis through microneedle channels — right to the dermal papilla where it triggers Wnt/beta-catenin signaling for follicle regeneration. A lower concentration at the target site is more effective than a high concentration that mostly evaporates on the surface. We also formulated specifically for GHK-Cu stability: our pH is tightened to 5.2-5.5 to protect the copper peptide bond, we use Trehalose to stabilize the peptide during storage, and our cartridge materials are low-protein-binding polypropylene or COC so the peptide doesn't adsorb to the cartridge walls. Higher concentration isn't always better — it's about how much actually reaches the follicle.

One cartridge every 7-10 days. That's three sessions per month. The spacing allows the microchannels to fully heal between treatments — your scalp needs time to recover and the actives need time to work. Using it more frequently won't speed up results and could irritate the scalp. This isn't a daily routine. It's a 5-minute session roughly once a week.

About 5-10 minutes. You open the sterile foil pouch, part your hair into sections, and press the device against thinning areas in a grid pattern with roughly 1cm spacing. The cartridge dispenses serum as the microneedles create channels. No mixing, no measuring, no multi-step routine. The cartridge is single-use — when you're done, you discard it.

The 0.5mm needles create a mild tingling sensation. Most users describe it as a light scratching feeling — far less uncomfortable than a tattoo or blood draw. The needles are 32-gauge (0.23mm diameter) and only penetrate the upper dermis. Mild redness is normal and typically fades within 24-48 hours. The Allantoin in our formula (dosed at 0.5%, increased specifically for post-microneedling recovery) supports healing. If you've ever used a derma roller, this is gentler and more precise.

Wait 12-24 hours. The microchannels created during treatment remain open for several hours, which is actually beneficial — it allows continued absorption of the serum already delivered into the dermis. Washing too soon can rinse away residual actives and introduce shampoo chemicals into open channels, which may cause irritation. After 24 hours, wash normally. No special shampoo required.

Yes, but not at the same time. Do not apply Minoxidil immediately before or after a microneedling session — the open microchannels can cause Minoxidil to absorb too deeply and increase systemic side effects. Wait at least 24 hours after your microneedling session before applying Minoxidil. On non-treatment days, use Minoxidil as you normally would. Many of our customers use both — our system targets six biological pathways that Minoxidil doesn't cover, so they're complementary, not redundant.

Yes. Finasteride is an oral medication that works systemically to reduce DHT levels throughout the body. Our system works locally at the scalp. There's no interaction between the two. In fact, the combination makes pharmacological sense — Finasteride reduces circulating DHT, while our Procapil and Capixyl provide additional 5-alpha-reductase inhibition directly at the follicle. That said, Finasteride is a prescription medication with its own side-effect profile, so talk to your doctor about it. We're not prescribers.

Reduced shedding: 4-6 weeks. Visible new growth: 3-4 months. Full results: 6+ months of consistent use. Hair biology is slow — the follicle growth cycle (anagen, catagen, telogen) takes months to complete. A follicle in the resting phase needs to be reactivated, enter anagen, and grow enough new hair for you to see it. That process cannot be meaningfully accelerated. Anyone promising visible results in weeks is lying to you. We'd rather set honest expectations than overpromise and disappoint.

Honestly, it varies. The ingredient-level clinical evidence is strong: Redensyl showed a 17% increase in anagen hairs over 84 days in a published study. Procapil demonstrated a 121% improvement in growth rate over 4 months. Adenosine at 0.75% showed significant hair count increases in the Japanese clinical trials. But those are individual ingredient studies — not our exact formulation. What we can say is that our formula combines all of these actives at their studied concentrations and delivers them intradermally, which should improve on topical results. What we can't guarantee is a specific outcome for any individual. Genetics, stage of hair loss, consistency, and overall health all play a role.

Probably not. If an area has been completely bald for years, the follicles have likely miniaturized beyond recovery — the dermal papilla may be too degraded to respond to topical or even intradermal actives. Our system is designed for thinning areas where follicles are still alive but dormant or weakened (roughly Norwood 2-5 patterns). The earlier you start, the more follicles you have to work with. We won't pretend we can regrow hair where follicles no longer exist — that's not what peptide-based treatments do.

If you want to maintain results, yes — ongoing use is required. This is true of every hair growth treatment, including Minoxidil and Finasteride. Androgenetic alopecia is a progressive condition driven by genetics and hormones. Our system helps reactivate follicles, prolong the anagen (growth) phase, and modulate DHT at the follicle level, but it doesn't change your underlying genetics. If you stop treatment, the follicles will gradually return to their pre-treatment state over several months. Most users who see results transition to a maintenance schedule of one session every 10-14 days after the initial 6-month period.

We currently ship within the United States. International shipping is on our roadmap, but microneedle devices face different regulatory classifications in different markets (some jurisdictions classify 0.5mm needle devices as medical devices, which requires additional certifications). We're working through those requirements. If you're outside the US and want to be notified when we expand, email us at hello@follicleand.co.

90-day money-back guarantee. Use the product consistently for up to 90 days. If you're not satisfied, contact us at hello@follicleand.co and we'll issue a full refund. We don't require you to send back used cartridges — they're single-use medical devices and we don't want them back. We offer 90 days because hair growth takes time, and we want you to give the product a real chance before deciding.

We'll give you your money back. That's what the 90-day guarantee is for. But we also want to be upfront: not everyone will respond to peptide-based treatments. Genetics, the stage of your hair loss, hormonal profile, and consistency of use all affect outcomes. If your follicles are too far gone, no topical or intradermal treatment will bring them back — that's a limitation of the entire category, not just our product. We say that upfront because honesty matters more than conversion rate. If you've used the product consistently for 90 days and see no improvement, email hello@follicleand.co and we'll process a full refund.

Different approach. Minoxidil is a vasodilator — it works primarily through one pathway (increasing blood flow to the follicle). It's FDA-approved, has decades of clinical data, and costs $10-30 per month. We don't compete with Minoxidil on regulatory status or price. What we offer is a multi-pathway system that targets six biological mechanisms simultaneously: DHT modulation, stem cell activation, growth factor signaling, anagen prolongation, anti-testosterone support, and vasodilation. We also have no reported side effects, while Minoxidil can cause scalp irritation, unwanted facial hair growth, and in its oral form, potential sexual side effects. Many of our customers use both. They're complementary — Minoxidil handles vasodilation, our system covers the other five pathways.

Same delivery format, very different formula. Peptonix uses a similar microneedle cartridge design, but their actives are primarily botanical DHT blockers — Licorice Root, Ginseng, Eclipta Prostrata — with Copper Tripeptide-1 and Caffeine. They don't publish their concentrations and they don't include Procapil, Capixyl, Redensyl, or Adenosine. Our formula uses the full RCP peptide trio plus GHK-Cu plus Adenosine at 0.75%, all at published clinical concentrations. That's the difference between botanical extracts with limited clinical evidence and proprietary peptide complexes with published, peer-reviewed data at specific doses. We cost more because our ingredients cost more. We publish our percentages because we have nothing to hide.

Because a topical serum wastes 95%+ of its actives on the skin surface. You can buy a serum with 18% total active load for $15-20 per month, and that's a legitimate product with good ingredients. But the stratum corneum blocks the vast majority of those actives from reaching the follicle. Our system delivers a lower volume of serum but gets dramatically more active ingredient to the actual target site — the dermal papilla and follicle stem cells in the upper dermis. It's the difference between pouring water on the outside of a pipe and injecting it directly into the pipe. The per-milligram cost of actives that actually reach your follicles is lower with our system, even though the sticker price is higher.

We haven't run one yet — and we'd rather be honest about that than pretend. Every individual ingredient in our formula has published clinical data at the exact concentrations we use: Redensyl at 3% (International Journal of Cosmetic Science, 2014), Procapil at 2.5% (Sederma/Ashland, 2010), Adenosine at 0.75% (Japanese clinical trials). We cite those studies directly and link to them. What we don't have is a trial on our specific combined formulation delivered via our microneedle system. Running a proprietary clinical trial is on our roadmap — it's expensive and takes time, and we didn't want to delay launching a product we believe in just to have a data point our competitors don't have either. We won't use the phrase "clinically proven" until we've earned it.