Microneedling for Hair Growth: Does a Derma Roller Really Regrow Hair?

Does Microneedling Regrow Hair?

If you've been searching for "does microneedling regrow hair?" or "best derma roller for hair growth", you're not alone.

Microneedling, also called dermarolling or scalp needling, has moved from skincare clinics into mainstream hair restoration routines — and for good reason.

Originally used for collagen stimulation and skin rejuvenation, microneedling is now widely explored as a treatment for:

• Male and female pattern hair loss, also known as androgenetic alopecia
• Thinning crown and widening part
• Frontal hairline recession
• Diffuse hair thinning

While microneedling is not a miracle cure for advanced baldness, evidence suggests it can stimulate follicles, increase growth factor production, and significantly improve results when combined with topical treatments like minoxidil.

What Is Microneedling for Hair Growth?

Microneedling is a process where tiny, controlled micro-injuries are created in the skin using a device containing fine needles.

On the scalp, this is typically done with:

• Derma roller: a rolling cylinder with fixed needles
• Derma pen: a motorised vertical stamping device
• Derma stamp: a manual pressing device

These micro-punctures trigger the body's wound-healing response. During repair, the scalp increases collagen production, blood circulation, growth factor release and dermal papilla cell activation.

How Microneedling Stimulates Hair Follicles

Hair follicles sit within the dermal layer of the scalp. In pattern hair loss, follicles shrink, or miniaturise, over time due to DHT sensitivity.

Microneedling appears to support hair regrowth in three major ways:

When combined with topical treatments like minoxidil or growth factor serums, the active ingredients may penetrate deeper, increasing their effectiveness.

Best Needle Size for Hair Growth

Choosing the correct needle length is critical.

• 0.5mm – 0.75mm: can be used around twice per week. This offers mild stimulation with less discomfort.
• 1.0mm – 1.5mm: typically used once per week. This provides deeper stimulation and may be more effective, but it is more intense and requires longer recovery time.

There is no dramatic difference in long-term results if microneedling is done correctly, but deeper needles require longer recovery time.

For androgenetic alopecia, many practitioners recommend 1.0mm to 1.5mm once weekly.

How Often Should You Microneedle the Scalp?

Most protocols suggest:

• 1x weekly for 1.0mm–1.5mm
• 2x weekly for 0.5mm–0.75mm

Over-needling can cause irritation and counterproductive inflammation. The scalp must be allowed time to repair between sessions.

Visible changes usually take 8–12 weeks minimum, with stronger density improvements appearing after 4–6 months of consistent use.

What Is the Best Derma Roller for Hair Growth?

The best derma roller for scalp use should:

• Be made from medical-grade stainless steel or titanium
• Have evenly spaced, sharp needles
• Be sized appropriately for your treatment depth

HR23+ offers a 1.5mm stainless steel derma roller designed specifically for scalp microneedling as a non-surgical hair loss treatment.

When paired with a high-quality topical serum and consistent routine, microneedling becomes one of the most powerful at-home scalp stimulation methods available.

Does Microneedling Regrow Hair Permanently?

Microneedling can stimulate regrowth in miniaturised follicles, but it does not eliminate the root hormonal driver of pattern hair loss.

For best results:

• Combine with topical treatments
• Maintain a high-protein, nutrient-dense diet
• Address iron, vitamin D and thyroid levels if shedding persists
• Stay consistent for several months