272 DIODES
312 DIODES
302 DIODES
HAIR & SKIN
SKINCARE ESSENTIAL
PATENTED TECH
5 MODELS
100,000+ HAPPY CUSTOMERS
Advanced Red Light Therapy for Hair Thinning & Loss
Powerful, clinically proven laser caps to restore thicker, fuller hair – all from the comfort of home.
✓ Only 6 Minutes A Day
✓ Clinically Proven Results
Shop Red Light Laser Caps
As seen in
Bestseller
Kiierr Laser Cap Hair Growth System
A clinically proven, hands-free solution for thicker, fuller hair—just wear it and let the technology do the rest.
Clinically Proven for Hair Regrowth
Visible Results in 7 Months
Effortless, Hands-Free Design
Thinning
Balding
Receding
Start Your Hair Regrowth Journey
7 month money back guarantee
The Quiz
Find Your Perfect Regrowth Plan
Take our quick quiz to discover the perfect hair regrowth solution for you.
Take The Quiz
Approx. 2 Minutes
Life-Changing Hair Transformations
See how Kiierr has transformed hair regrowth journeys with real success from real people.
No surgeries
|
No side effects
No pills
Doctor Recommended Laser Therapy for Hair Growth
Trusted by Experts Around the World
Leading dermatologists worldwide recommend laser therapy as a safe & effective solution for combating hair loss and promoting hair growth.
Clinically Proven Technology
Validated by experts in the field of hair restoration.
Trusted by Dermatologists
Recommeneded by hair loss experts worldwide.
Used Globally
Millions of satisfied users
across the world.
“Laser therapy helps stimulate hair follicles at a cellular level. Kiierr applies this proven approach in a well designed at home system I trust.”
— Dr Debra Shelby, Dermatologist
Millions of satisfied users across the world.
Scientific Proof You Can Trust
Backed by extensive research, Kiierr’s advanced laser technology is clinically proven to stimulate hair growth and combat hair loss effectively.
Clinical Study 1
The Impact of Low-Level Light Therapy (LLLT) on Hair Regrowth
• Research demonstrated a 43% increase in hair growth in 100% of participants within just 9 weeks.
• Findings confirmed that LLLT stimulates dormant hair follicles and prolongs the growth phase for thicker, fuller hair.
Clinical Study 2
Home-Use LLLT Devices Show Significant Hair Growth
• In a meta-analysis of FDA-approved devices, participants using LLLT experienced a noticeable increase in hair density compared to placebo groups.
• This study supports LLLT as a safe, at-home solution for androgenetic alopecia.
Clinical Study 3
Evidence of Effective Hair Density Improvements with LLLT
• Over 90% of study participants reported reduced hair loss and improved hair coverage in just 12 weeks of LLLT treatment.
• Results showed consistent hair follicle stimulation without adverse effects.
Clinical Study 4
24-Week Study on LLLT’s Efficacy for Hair Loss
• A randomized, double-blind trial revealed significant increases in hair thickness and density among LLLT users.
• Findings concluded that LLLT is a highly effective treatment for androgenetic alopecia when used consistently.
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How Red Light Therapy Revives Hair Growth
Using medical-grade laser technology, Kiierr stimulates blood flow, reactivates dormant follicles, and strengthens hair for long-term regrowth.
Step 1
Restore Blood Flow
Laser therapy stimulates blood flow to the scalp, delivering oxygen and nutrients directly to hair follicles, reawakening them from dormancy.
Step 2
Reactivate Dormant Follicles
The medical-grade lasers kickstart the growth cycle in inactive follicles, helping hair grow thicker, fuller, and healthier.
Step 3
Support Long-Term Growth
Consistent use strengthens hair over time, ensuring long-term results without invasive treatments or harsh chemicals.
Clinically Proven to Outperform Other Solutions
Thousands have switched to Kiierr after seeing little to no results. Here’s why
46.6%
Growth
Competitor A
8.6%
Competitor B
6.6%
*Based on customer feedback and reviews. Individual results may vary.
Why Kiierr Stands Above the Rest
Cutting-edge technology, proven results, and effortless convenienc —discover what makes Kiierr the top choice for hair regrowth.
Dermatologist Recommended
Free 2-day Shipping
Quick & Easy Returns
FDA Cleared
2 Year Warranty
Trusted by
Thousands
Common Questions About Kiierr
Will laser therapy work for my type of hair loss?
Absolutely! The great thing about Low-Level Light Therapy (LLLT) is its versatility! Whether you are male or female, 18 or 88, from pattern baldness to hair thinning due to stress or medical conditions like including alopecia areata, hormonal imbalances, telogen effluvium and so much more.
Users of all hair textures and skin tones have seen incredible results, regardless of age. Start your journey to thicker, healthier hair today and see why so many trust Kiierr for their hair growth needs!
Which laser cap should I choose?
We have 4 laser cap options: 148 Pro, 272 Premier, 272 MD Elite, and 302 MD Ultra Flex. Choosing the right cap depends on your specific needs. For early stages of hair loss or those on a budget who are okay with slower, steadier results, the 148 Pro is ideal. If you’re seeking more significant and quicker regrowth, the 272 Premier is our bestseller.
For larger head sizes or extensive coverage, the 272 MD Elite is perfect. Lastly, the 302 MD Ultra Flex offers the fastest results and superior comfort. Ideal for severe hair loss, this model also offers a soft flex fit for maximum comfort.
How long will it take to see results?
Results vary, but most users see noticeable improvements within 6-12 weeks. We’re so confident in our product that we offer a 7-month growth guarantee—if you don’t see results, you can return the cap!
Laser therapy is a safe, non-invasive, and natural way to treat hair loss before considering more drastic measures like medications or surgery.
Why should I buy your cap vs competitors?
Choosing Kiierr is like joining a family & community committed to hair recovery. Since 2017, we’ve provided top-quality, medical-grade laser caps with a solid 2-year warranty. With our 7-month growth guarantee, you can trust that we’re as invested in your hair journey as you are.
Our exceptional customer service is always ready to support your journey; real people who genuinely care, ready to guide, support, and celebrate your progress with you.
Do you offer payment plans?
Yes! We offer flexible payment options through Affirm, Afterpay, and PayPal Pay Later, providing easy monthly installments or delayed full payments to suit your financial situation.
Affirm allows you to split your purchase into easy monthly payments with interest rates as low as 0% APR. See terms and conditions here.
Afterpay allows you to split your purchase into four equal installments, due every two weeks, no interest or fees. PayPal Pay Later, you can choose to pay in full within 6 months with no interest, or make minimum monthly payments with interest.
Just pick what works for you at checkout!
Is laser therapy safe to use?