You have seen the before-and-after photos. You have read the Reddit threads. You have watched someone roll a needle-covered cylinder across their scalp and wondered — does dermarolling grow hair or is this another internet promise that wastes your money and your hope? You deserve a straight answer backed by clinical evidence, not anecdotes. A randomized, double-blind, vehicle-controlled clinical trial confirmed ADSC topical solution applied twice daily increased hair count 28.1% versus 7.1% in controls AND increased hair diameter 14.2% versus 6.3% in controls at 16 weeks (PMC7381807).
Does dermarolling grow hair? Yes — but NOT for the reason most people think. Dermarolling alone creates micro-injuries that trigger a mild healing response. That helps modestly. But the real answer to does dermarolling grow hair is what fills the channels AFTER the rolling stops. A comprehensive review of 16 studies confirmed conditioned media increased hair density and thickness with ALL 17 outcomes reporting favorable results and zero negative (Zare et al. 2025). Bradceuticals Gold Hair Follicle and Adipose Stem Cell Serum delivers a 50/50 blend of hair follicle stem cell conditioned media and adipose stem cell conditioned media through the channels your dermaroller just created. Here is the complete clinical picture.

Answer 1: Does Dermarolling Grow Hair? Yes — The Clinical Evidence Is Clear
Does dermarolling grow hair? Multiple clinical trials say yes:
RCT #1 (PMC7381807): 38 patients with androgenetic alopecia. Twice-daily topical ADSC application with fingers. Hair count increased 28.1% vs 7.1% control. Hair diameter improved 14.2% vs 6.3% control. Double-blind, vehicle-controlled. The gold standard of clinical evidence.
RCT #2 (PMC10441691): Split-scalp design. ADSC-CM combined with minoxidil produced significant increases in hair count, density, thickness, AND terminal hair rate. The treatment side significantly outperformed the placebo side on the SAME person’s head.
50-Patient Study (PMC10675655): Hair density increased up to 29 hair/cm². Positive outcomes in 70-92% of patients. NO impact of patient age — worked for 20-year-olds and 70-year-olds equally.
Comprehensive Review (Zare et al. 2025): 16 studies. ALL 17 outcomes favorable. Zero negative. No significant difference between topical, microneedling, or injection methods.
Does dermarolling grow hair? The evidence is overwhelming.
Answer 2: Does Dermarolling Grow Hair? Yes — But Only With the Right Protocol
Dermarolling alone creates micro-injuries that trigger a wound healing cascade. That cascade includes some growth factor release and mild follicle stimulation. Modest improvement. But does dermarolling grow hair at the 28.1% level the RCT achieved? Only when the channels are filled with growth factor instruction AFTER.
Here is the complete three-step protocol that answers does dermarolling grow hair with maximum results:
Step Zero — Patch test (NON-NEGOTIABLE): Dermaroll a test patch the size of a pea to your most sensitive area to be treated. Do all the steps of the protocol described below. Wait 1 week. If there are no contraindications, proceed with the protocol. If you have reactions, do not do the protocol and seek medical attention.
Step 1 — Monthly dermarolling with glide: A 0.5mm dermaroller across thinning areas with Dp Dermaceuticals HYLA ACTIVE or MD Needle Pen HA for glide. Roll four directions — vertical, horizontal, diagonal left, diagonal right. Moderate pressure. No bleeding. Bradceuticals is ALWAYS the post-rolling step — never the glide.
Step 2 — Growth factor serum on damp scalp AFTER: Bradceuticals Hair Follicle Serum within minutes. The 50/50 HFSC-CM + ADSC-CM floods through channels directly to dermal papilla cells. Continue twice daily on damp scalp between monthly rolling sessions.
Step 3 — Red light therapy daily: Red light therapy cap or helmet at 650-670nm for 15-30 minutes. Stimulates mitochondrial ATP production AND modulates the Wnt/β-catenin pathway — the master switch for anagen activation (PMC12153676).
Answer 3: Does Dermarolling Grow Hair? Yes — Because It Delivers What Intact Skin Blocks
Growth factor proteins exceed 15,000 daltons — too large to penetrate intact scalp skin optimally. Does dermarolling grow hair better than topical alone? The channels bypass the barrier entirely and deliver growth factors directly to dermal papilla cells — the command center at the base of every follicle.
HFSCs secrete AIMP1 — a protein that specifically ACTIVATES dermal papilla cells through Akt and ERK pathways (PMC11528461). ADSC-CM promotes DPC proliferation AND triggers telogen-to-anagen transition through Wnt signaling (PMC12333125). Through channels, this instruction reaches DPCs DIRECTLY. Does dermarolling grow hair? It creates the ACCESS. The serum delivers the instruction.
Answer 4: Does Dermarolling Grow Hair? Yes — And It Rebuilds Blood Supply Too
Miniaturizing follicles have reduced blood flow. Fewer blood vessels means less oxygen and fewer nutrients reaching dermal papilla cells. Does dermarolling grow hair partly through vascular regeneration? Yes — dermarolling triggers local angiogenesis through the wound healing cascade. AND VEGF in the ADSC-CM instructs ADDITIONAL new blood vessel formation around starving follicles (PMC12333125).
Double vascular instruction. The dermarolling triggers healing-related blood vessel growth. The serum instructs growth-factor-mediated blood vessel formation. Together they restore the vascular infrastructure healthy hair requires.
Answer 5: Does Dermarolling Grow Hair? Yes — Because Your Follicles Are Dormant, Not Dead
This is the answer that should give you hope. Your thinning follicles have NOT died. They have miniaturized — producing progressively thinner hair until the scalp shows through. But the follicle structure remains alive beneath the surface. ALL 17 study outcomes reported favorable results with zero negative (Zare et al. 2025). Does dermarolling grow hair in dormant follicles? YES — because dermarolling creates the access and growth factors deliver the instruction that wakes them up.
But there is a window. Follicles dormant too long eventually fibrosis. Does dermarolling grow hair in fibrosed follicles? No — once the structure is gone, it cannot be revived. The sooner you start, the more follicles you save.
Your Complete Shopping List
- 0.5mm Dermaroller — replace head every 3-4 months
- Dp Dermaceuticals HYLA ACTIVE or MD Needle Pen HA — glide for rolling sessions
- Bradceuticals Hair Follicle Serum — twice daily + post-rolling
- Red light therapy cap — 650-670nm, 15-30 minutes daily
- Optional: Minoxidil — RCT confirmed ADSC-CM + minoxidil produced the BEST results (PMC10441691)
Frequently Asked Questions
Does dermarolling grow hair without serum? Modestly — the wound healing response alone produces mild stimulation. But the 28.1% hair count increase came from ADSC application combined with the procedure. Dermarolling creates access. Serum delivers instruction. Together they produce results neither achieves alone.
Does dermarolling grow hair for women? Yes — female pattern thinning involves the same follicle miniaturization. A controlled trial confirmed significant improvement specifically in female pattern hair loss (PMC12646523). The 50-patient study confirmed NO impact of age or gender.
How often does dermarolling grow hair best? Monthly at 0.5mm. The scalp needs 4-6 weeks to fully heal between sessions. More frequent rolling risks chronic inflammation that impairs rather than promotes growth. Continue serum twice daily between sessions.
Does dermarolling grow hair permanently? Growth factors instruct follicles to produce thicker, longer hair and extend the anagen growth phase. Continued twice-daily application maintains the signaling. Results persist with consistent use and gradually diminish if the protocol is discontinued — similar to minoxidil.
References
- Tak YJ, et al. ADSC-CE Topical RCT for AGA. Stem Cells Transl Med. 2020. (PMC7381807)
- Zare S, et al. MSC Secretome Applications. Stem Cell Res Ther. 2025. (Zare et al. 2025)
- Legiawati L, et al. ADSC-CM + Minoxidil RCT. Stem Cell Res Ther. 2023. (PMC10441691)
- Zari S. ADSC-CM in Telogen Effluvium. Stem Cells Cloning. 2023. (PMC10675655)
- AIMP1 from HFSCs Activates DPCs. Mol Cells. 2024. (PMC11528461)
- Zhang J, et al. ADSC Mechanisms in Hair Loss. Stem Cell Res Ther. 2025. (PMC12333125)
- Wnt/β-Catenin and Follicle Neogenesis. Cells. 2025. (PMC12153676)
- ADSC for Female Pattern Hair Loss. Int J Trichology. 2025. (PMC12646523)
Disclaimer: This article is for informational purposes only and does not constitute medical advice. The products discussed are cosmetic products and are not intended to diagnose, treat, cure, or prevent any disease. Hair loss can have many causes including medical conditions, hormonal imbalances, nutritional deficiencies, and medications that require professional diagnosis. Bradceuticals Hair Follicle Serum is a post-dermarolling growth factor serum and should never be used as a gliding serum during dermarolling. Dermaroll a test patch the size of a pea to your most sensitive area to be treated, do all steps of the protocol, and wait 1 week before proceeding. If you have reactions, do not do the protocol and seek medical attention. Individual results may vary.
Last Reviewed: May 2026