Thinning hair can feel like a constant worry. You check the mirror a little more often, notice more strands on your pillow, and wonder if there's a solution that doesn't involve harsh medications or invasive procedures.
If you're in Edmonton and looking for natural hair growth treatments using red light therapy, you're in the right place. This guide breaks down what red light therapy actually does, how it works, who it helps, and what to expect, without the hype or false promises.
What Is Red Light Therapy for Hair Growth?
Red light therapy (also called low-level laser therapy or LLLT) uses specific wavelengths of light to stimulate hair follicles at the cellular level. It's non-invasive, drug-free, and based on science, not wishful thinking.
Unlike topical treatments or supplements, red light therapy works by delivering energy directly to the cells in your scalp. This energy kickstarts natural processes that support healthier, thicker hair growth.
The treatment has been studied extensively, particularly for androgenetic alopecia (pattern hair loss), and clinical trials show it can produce measurable results when used consistently.

Alt text: Close-up of red light therapy device positioned over scalp showing wavelengths penetrating hair follicles
How Red Light Therapy Stimulates Hair Growth
Understanding the "why" behind red light therapy helps you set realistic expectations. Here's what happens at the cellular level:
Increased Cellular Energy (ATP Production)
Red light stimulates mitochondria, the powerhouses of your cells, to produce more ATP (adenosine triphosphate). Think of ATP as fuel. When your hair follicles have more fuel, they function better and stay in the active growth phase longer.
Improved Blood Flow to the Scalp
Red light causes vasodilation, which means your blood vessels widen. This brings more oxygen and nutrients to your hair follicles, creating a healthier environment for growth.
Reduced Inflammation
Chronic inflammation can damage hair follicles and disrupt the growth cycle. Red light therapy has anti-inflammatory effects that calm the scalp and protect follicles from further damage.
Prolonged Growth Phase
Hair grows in cycles: anagen (growth), catagen (transition), and telogen (resting). Red light therapy can extend the anagen phase, delaying the shift to the resting stage where hair stops growing and eventually sheds.
The 650-nanometer wavelength has been identified as the most effective for stimulating hair growth, so quality devices should target this range.
If you're curious about the deeper science, check out our previous post on how red light therapy works at the cellular level.
What the Research Actually Shows
Let's be clear: red light therapy isn't a miracle cure for baldness. But it does have solid clinical backing, especially for pattern hair loss.
In randomized controlled trials, low-level laser therapy performed just as well as minoxidil (the active ingredient in Rogaine) at regrowing hair in people with hereditary hair loss. When patients combined red light therapy with minoxidil, results were even better.
Here's what works best:
- The correct wavelength is used (typically 650nm)
- Treatment is applied consistently over months
- Hair follicles are still viable (not completely dormant)
Red light therapy won't bring back hair in areas where follicles have been inactive for years. It works best for people with early to moderate thinning, not advanced baldness.

Alt text: Before and after comparison showing improved hair density after consistent red light therapy treatment over six months
What to Expect: Timeline and Results
Hair growth is slow. If you're expecting overnight results, you'll be disappointed. But if you're willing to commit to consistent treatment, here's a realistic timeline:
2–3 Months:
You might notice less shedding. This is often the first sign that follicles are responding.
3–6 Months:
Visible improvements in hair thickness or density. This is when most people start seeing results they can actually photograph.
6–12 Months:
Peak results with continued use. Hair appears fuller, and thinning areas may show noticeable regrowth.
One important thing to understand: ongoing use is required. When you stop treatment, the effects gradually fade. Red light therapy supports your hair while you're using it, but it doesn't permanently "fix" the underlying causes of hair loss.
Who Benefits Most from Red Light Therapy?
Red light therapy shows the strongest results for:
- People with androgenetic alopecia (male or female pattern hair loss)
- Those with early to moderate thinning (not advanced baldness)
- Anyone looking for a drug-free, non-invasive option
- People who prefer natural hair growth treatments over pharmaceutical interventions
It's also a good option for Edmonton residents dealing with seasonal shedding or stress-related hair loss, though results may vary.
Who might not see results:
- People with completely dormant follicles
- Those with scarring alopecia or autoimmune hair loss conditions (consult a dermatologist first)
- Anyone unwilling to commit to several months of consistent treatment

Alt text: Person relaxing during red light therapy session at professional wellness clinic with device positioned over scalp
At-Home vs. Professional Red Light Therapy
You have two main options: at-home devices or professional treatments at a wellness clinic like Wave Therapy.
At-Home Devices:
- Convenient and private
- Lower upfront cost over time
- FDA-cleared devices can be effective
- Requires self-discipline for consistency
- Sessions typically take 10–30 minutes, 3–4 times per week
Professional Treatments:
- More powerful devices
- Guided by trained practitioners
- May produce faster or more noticeable results
- Built-in accountability (you show up for appointments)
- Often combined with other scalp health treatments
At Wave Therapy in Edmonton, we use clinical-grade red light therapy systems designed specifically for hair growth. Our team can help you understand whether professional sessions, at-home use, or a combination of both makes the most sense for your goals.
How to Use Red Light Therapy Safely
Red light therapy is generally considered safe when you use FDA-cleared devices as directed. Side effects are rare and usually mild, things like temporary scalp redness or warmth that fades quickly.
Here are a few safety tips:
- Follow device instructions carefully
- Don't overdo it (more sessions won't speed up results)
- Protect your eyes if the device is bright
- If you have a scalp condition, check with a dermatologist first
- Be patient, hair growth takes time
Long-term safety data continues to develop, but there's no evidence of serious risks when red light therapy is used correctly.

Alt text: FDA-cleared red light therapy cap device showing proper positioning for at-home hair growth treatment
Frequently Asked Questions
How long does each red light therapy session take?
Most sessions last 10–30 minutes, depending on the device. You'll typically use it 3–4 times per week.
Can I use red light therapy with other hair loss treatments?
Yes. Many people combine it with minoxidil, finasteride, or PRP injections. In fact, research shows combination therapy often produces better results than any single treatment alone.
Is red light therapy painful?
No. You might feel a slight warming sensation on your scalp, but it's not uncomfortable.
Will my hair fall out if I stop using red light therapy?
The hair you've regrown with red light therapy will gradually return to its baseline over time if you stop treatment. It's not a permanent fix: it's ongoing support.
How much does red light therapy for hair growth cost in Edmonton?
At-home devices range from $200–$900. Professional sessions vary by clinic. At Wave Therapy, we offer flexible packages: check our booking page for current pricing.
Does red light therapy work for women and men equally?
Yes. Clinical studies show effectiveness for both male and female pattern hair loss.
Can red light therapy help with alopecia areata?
The research is less robust for autoimmune hair loss conditions. If you have alopecia areata, talk to a dermatologist before starting red light therapy.
The Bottom Line
Natural hair growth treatments using red light therapy offer a science-backed, non-invasive option for people dealing with thinning hair. It won't work overnight, and it's not a cure for advanced baldness: but for those with early to moderate hair loss, consistent use can produce real, measurable improvements.
If you're in Edmonton and ready to explore red light therapy, we'd be happy to talk through your options. At Wave Therapy, we focus on education first, so you can make an informed decision about what's right for your hair goals.
Ready to learn more? Book a consultation or stop by our Edmonton clinic. We'll walk you through how red light therapy works, answer your questions, and help you decide if it's the right fit: no pressure, just honest guidance.















