The Science of Hair Regrowth | How LLLT Reactivates Follicles

The Science of Hair Regrowth: How LLLT Reactivates Follicles

Hair loss can feel like a mystery—but at its core, it’s biology. Whether you’ve noticed shedding in your 20s or thinning in your 40s, one thing is certain: your follicles are still alive, just inactive.

That’s where Low-Level Laser Therapy (LLLT) comes in. FDA-cleared and clinically proven, LLLT reawakens dormant follicles, restoring them to their natural growth cycle.

The Hair Growth Cycle

Every strand of hair follows a cycle:

• Anagen (Growth Phase): Follicles actively grow new hair.
  
  

• Catagen (Transition Phase): Growth slows and follicles shrink.
  
  

• Telogen (Resting Phase): Follicles go quiet, hair eventually sheds.
  
  

In hereditary hair loss (androgenetic alopecia), more follicles get “stuck” in the resting phase, leading to thinning and visible hair loss

How LLLT Changes the Equation

Low-Level Laser Therapy delivers precise red light (around 650nm) directly to the scalp. Here’s what happens at the cellular level:

• Increases Cellular Energy (ATP): Laser light stimulates mitochondria (the “powerhouse” of the cell).
  
  

• Improves Circulation: More oxygen and nutrients reach the follicle.
  
  

• Reduces Inflammation: Calms scalp stress that can choke follicles.
  
  

• Reactivates Dormant Follicles: Shifts them back into the growth (anagen) phase.
  
  

The result? Thicker, stronger hair that grows naturally—without drugs, surgery, or downtime.

Clinical Proof

Capillus technology has been studied extensively:

• Clinical trials showed up to 51% increase in hair counts within 17 weeks.
  
  

• FDA clearance confirms both safety and effectiveness for hereditary hair loss.
  
  

• Dermatologists and hair restoration clinics worldwide use LLLT as a trusted therapy.
  
  

Why Capillus Stands Out

• Medical-Grade Lasers (No LEDs): Delivers pure, consistent energy to the scalp.
  
  

• FDA-Cleared Devices: From the Pro S2 to the flagship Spectrum.
  
  

• 6 Minutes a Day: Short, convenient sessions for long-term results.
  
  

• Discreet Design: Looks like a cap—so you can treat anywhere, anytime.
  
  

What Results Look Like

• Months 1–3: Shedding slows, existing hair feels stronger.
  
  

• Months 3–6: New growth and improved density become visible.
  
  

• Months 6–12+: Fuller coverage and long-term maintenance.
  
  

The Takeaway

Hair regrowth isn’t magic—it’s science. With LLLT and Capillus devices, you can reactivate dormant follicles, restore confidence, and take back control of your hair health.

The earlier you start, the better your results.
👉 Explore Capillus Laser Caps