272 DIODES
312 DIODES
302 DIODES
HAIR & SKIN
SKINCARE ESSENTIAL
PATENTED TECH
5 MODELS
Did you know?
50% of Women Experience Hair Thinning or Hair Loss
If you are noticing thinning hair or widening part lines, you are not alone. Kiierr Laser Caps offer a powerful, painless, drug free way to support regrowth and restore confidence.
Clinically Proven Results
Safe & Trusted Technology
Designed for Women
START YOUR REGROWTH JOURNEY
Featured in major publications:
Real Women, Real Results
What Makes Female Hair Loss So Frustrating?
Hair loss in women can be triggered by hormones, stress, postpartum changes, genetics, aging, medical conditions, or lifestyle shifts. These factors can shrink hair follicles, shorten growth cycles, and cause excessive shedding or thinning over time. The hardest part is how unpredictable and discouraging it can feel. But the good news? You are not stuck with it.
Here are 7 reasons thousands of women choose Kiierr Laser Caps to support fuller, thicker, healthier hair without prescriptions, chemicals, or side effects.
1. Backed by Real Science, Not Hype
Kiierr uses Low-Level Laser Therapy (LLLT). The same technology used in hair clinics to stimulate blood flow, energies follicles, and reverse hair thinning at the root.
“FDA-cleared and clinically proven to regrow hair in over 93% of users.”
2. Designed with Women in Mind
The Kiierr Laser Cap fits discreetly under any hat, so you can go about your day, take a walk, or watch Netflix while treating hair loss hands-free.
“No pills. No messy foams. Just 30 minutes, 3–4 times a week.”
3. Works for All Hair Loss Including Hormonal
Whether it’s perimenopause, menopause,or post-pregnancy, Kiierr helps combat the hormonal shifts that disrupt your natural hair cycle.
“Targets thinning along your part, crown, and temples — the most common areas for women.”
4. See Visible Results in 4–6 Months
With consistent use, many users notice reduced shedding within weeks and visible regrowth in 4 to 6 months. Laser therapy is especially effective for age related thinning, helping support follicles before hair loss becomes more advanced.
“The earlier you start, the better the results.”
5. Backed by a 7-Month Growth Guarantee
Kiierr offers one of the most generous guarantees in the industry:
• Pick your cap.
• Use it for 7 months.
• Don’t see results? Get your money back.
“We stand behind your regrowth or you get a full refund.”
6. Cheaper Than Hair Clinics (By a Mile)
Clinic-based laser treatments can cost $3,000+ per year. With Kiierr, you get the same technology in a one time purchase, starting under $800.
“Plus, 0% financing is available to make it even easier.”
7. Trusted by Thousands of Women (Just Like You)
From moms to professionals to women in their 30s, 40s, 50s and 60s Kiierr is rated 4.9 stars by customers who’ve seen real, life-changing results.
“This cap gave me my confidence back. I can finally wear my hair down again.” – Sarah J.
Start Your Regrowth Journey
Trusted by 50,000+ Women
Kiierr is trusted by 50,000+ women to restore their confidence
The Kiierr laser cap gave me a piece of myself back & I couldn't be more grateful.
After giving birth I experienced postpartum hair loss, which was really hard to deal with. But after just a few months of using Kiierr, I noticed less shedding & even regrowth in the areas that had thinned out. Getting my hair back has been such a huge confidence booster post baby.
– Samantha G
Verified Buyer
The Kiierr Cap helped my age related thinning!
I’ve been very pleased with my Kiierr Cap. My thinning hair caused by aging has thickened and grown significantly over the last 2 years. It’s made a real difference in how I feel about myself. Kiierr’s customer service has been excellent. I’m so glad I gave this a chance.
– Danita T
After menopause, this brought my hair back to life!
I have had my Kiierr 272 Premier Laser Cap for 3 years now and have been very happy with the improvements that have occurred in my hair density. After 8 months of using the cap, the part had narrowed considerably. I HIGHLY recommend this cap! It is worth way more than the price! I will never be without one!
– Connie K
Frequently Asked Questions
No matter what your question is, the team at Kiierr is always on hand to provide prompt and accurate answers. Email us at service@kiierr.com or sales@kiierr.com
Laser Cap Questions
Will this product work for me?
Kiierr laser caps are designed to help both men and women experiencing hair thinning or loss caused by common conditions such as androgenetic alopecia (male or female pattern baldness), postpartum hair loss, menopause-related thinning, stress-induced shedding, or general hair weakening with age. The caps use low-level laser therapy (LLLT), a safe, non-invasive technology that stimulates hair follicles, increases blood flow, and supports stronger, thicker hair growth over time. It works best for those who still have active follicles, meaning some existing hair is present. While results vary from person to person, most users who stay consistent with their treatment see visible improvement in hair fullness and scalp health.
When can I expect results?
Everyone’s hair growth cycle is different, but most users notice early improvements within the first few months. During the initial phase, you may experience some light shedding as weak hairs make way for stronger new growth. Visible thickening and regrowth typically begin around the 3-6 month mark, with the most noticeable results appearing between 6-12 months of consistent use. Continued use helps maintain and enhance your results over time.
What model should I choose?
Kiierr offers several laser cap models so you can choose the one that fits your needs and goals.
The 148 Pro model is a great entry-level choice for those just starting their hair growth journey. It is used every other day for 30 mins and fits up to 23.5" in circumference.
The 272 Premier and 272 Elite XL models provide stronger coverage and are ideal for users with moderate thinning or those wanting faster, fuller results. It is used every other day for 30 mins & fits up to 23.5" in circumference for the standard and 24.5" for the XL.
The 272 DualWave combines 2 laser wavelengths for deeper follicle stimulation and added effectiveness. It is used 6 minutes daily & has a softer, more flexible deisgn.
For those looking for maximum coverage and power, the 302 UltraFlex and 312 DualWave are our most advanced options, featuring the highest diode count and full scalp stimulation. These models are used 6 minutes daily & have a softer, more flexible deisgn.
No matter which you choose, all models use medical grade lasers and deliver the same proven therapy. Higher diode counts simply increase scalp coverage & treatment intensity.
What payment options do you have?
We accept all major payment methods through Shopify, including credit and debit cards, PayPal, and Shop Pay.
You can also use your FSA or HSA account for reimbursement.
Do you have a warranty?
Yes, every Kiierr laser cap comes with a full two-year warranty. If you experience any issues during that time, our support team is happy to help with repairs or replacements. Simply email us, and we’ll make sure you’re taken care of quickly and easily.
What if I don't see results?
Consistency is key with low-level laser therapy. Make sure to follow the recommended treatment schedule and continue using your cap regularly for at least 7 months. Because hair growth happens gradually, it can help to take photos every month to track your progress. If you’ve used your cap consistently and haven’t noticed results after the full treatment period, reach out to our support team. You can read our full policy here.