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HAIR & SKIN
SKINCARE ESSENTIAL
PATENTED TECH
5 MODELS
#1 DOCTOR RECOMMENDED
HAIR GROWTH BRAND ·
award winning
CLINICIAN'S CHOICE
15-in-1 Scalp Density Shampoo
Daily Care for Women's Hair
4.9 · 2214 reviews
90 day money-back guarantee
15 science-backed ingredients work together to calm shedding, nourish your follicles, and support a healthier scalp for visibly thicker, fuller hair you can feel confident in again.
A proprietary formula made for women's long-term hair health.
Try it risk-free for 90 days. If you don't love your hair, we'll refund you.
Most Popular
30-Day Supply
$34.99
$27.99
1 bottle (30-day supply) delivered monthly
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Best Value · Free Scalp Activator
90-Day Supply
$104.97
$73.47
Free Scalp Activator ($25 value)
3 bottles delivered quarterly
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Just need one? Buy once — $34.99 + shipping
1038 clinicians share Kiierr on FrontrowMD
Description
Formulated with over a dozen active ingredients, including DHT blockers, scalp stimulators, and hair-strengthening keratin, Kiierr Hair Growth Shampoo goes far beyond cleansing to treat thinning hair at its source with every single wash.
Consistent long term use is what separates people who see real, lasting results from those who don't. Your follicles need continuous support to stay healthy and productive.
Ingredients
Ginseng & Ginkgo Biloba stimulate blood circulation at the scalp, delivering more oxygen and nutrients directly to hair follicles to keep them active and extend the growth phase.
Clary Sage, Cinnamon, Zinc PCA, Green Tea & Kapilarine target DHT, the hormone responsible for follicle miniaturization and hair thinning, while deeply cleansing the scalp of the buildup and excess oil that block healthy growth.
Keratin & Panthenol rebuild and reinforce the hair shaft from within. Keratin restores the structural protein hair loses through daily damage, while Panthenol (Vitamin B5) penetrates deep into each strand to add thickness, elasticity, and moisture retention.
Jojoba & Wheat Germ Oil nourish the scalp without clogging pores. Jojoba mimics the scalp's natural oils for balanced hydration, while Wheat Germ Oil's high Vitamin E content protects follicles from the oxidative stress that contributes to premature shedding.
Instructions
How to Use
Wet your hair thoroughly with warm water, then apply Kiierr Hair Growth Shampoo directly to the scalp and roots. Gently massage in circular motions for 1-2 minutes to stimulate the scalp and work the formula into the hair follicles, then distribute through the lengths of your hair. Leave on for up to 5 minutes then rinse thoroughly with warm water.
Each bottle contains 8 oz of shampoo. How long a bottle lasts and how many you'll need per month depends on your hair length & how often you wash.
For Best Results
Consistent daily or near-daily use is key. Hair growth is a gradual process and clinical results are typically seen after 90 or more days of regular use. We recommend starting with a supply that covers at least three months to give the formula time to work.
Shipping & Returns
Fast Shipping
Orders are processed and shipped quickly so you can start your hair growth journey without delay. Standard shipping typically arrives within 3–5 business days. Expedited options available at checkout.
Our 90-Day Money-Back Guarantee
We stand behind our shampoo completely. If you're not satisfied with your results after 90 days of consistent use, we'll make it right.
Hair growth is a journey and we're committed to being your partner every step of the way. That's why we back every order with our industry-leading guarantee. You have nothing to lose, except the hair loss.
Questions? Reach us at sales@kiierr.com
90 day guarantee
Regrow hair or it's free
If you don't see thicker, fuller hair within 90 days, we'll refund you in full. See policy for details.
AS SEEN IN
See the difference for yourself.
Verified customer before & after photos — unretouched, unfiltered.
I'd tried every shampoo on the market before Kiierr and honestly expected nothing different. By month 3 my part had visibly stopped widening and my scalp felt healthier than it had in years.
Melissa T.
Verified customer
THINNING
After having my second baby my hair was falling out in handfuls and nothing was helping. After around 3 or 4 months the shedding slowed significantly and my roots felt stronger.
Sarah K.
Postpartum
Stress had taken a serious toll on my hair over the past 2 years and I could see my scalp through my crown. With Kiierr the thinning had noticeably slowed and new growth was coming in thicker.
Jane D.
STRESS
I started noticing thinning along my part in my late 30s and assumed it was just aging.After using this shampoo consistently my part looked visibly narrower and my hair felt denser overall.
Rachel M.
Age-related
LLLT Caps
The Ultimate Hair Growth Shampoo
Stops Hair Loss at the Root
Strengthens & Repairs Hair Strands
Nourishes Scalp with Conditioning Oils
Addresses Multiple Causes of Loss
Kiierr
Nutrafol
Hims
Spartan
Nioxin
swipe to see all treatments →
Ingredients backed by research.
Clinically supported ingredients reawaken dormant follicles & rebuild visible thickness.
ALL NATURAL
Clinically SUPPORTED
Real data. Real growth.
CUSTOMER SURVEY RESULTS
Kiierr shampoo + LLLT
+41 hairs/cm²
Placebo
+3 hairs/cm²
Terminal hair count increase
*In customer reported results over 6+ months, Kiierr Shampooo users saw approximately 41+ new hairs per cm² compared to placebo.
+95
%
PLACEBO
KIIERR
STRONGER, HEALTHIER HAIR
after 90 days of use*
Frequently Asked Questions
Message us at sales@kiierr.com to connect with a dedicated support agent. Our small, knowledgeable team personally responds to every email (no bots or AI). We’re always here to help and make sure your questions are answered quickly & with care.
When will I start seeing results?
Most customers begin noticing less shedding and improved scalp health within the first 4–6 weeks. Visible hair growth and thickness typically become apparent after 90 days of consistent daily use. Hair growth is a biological process that takes time. Staying consistent is the single most important factor in seeing results.
How is Kiierr different from a regular shampoo?
Most shampoos are designed to clean hair and nothing more. Kiierr is formulated with active ingredients, including DHT blockers, follicle stimulators, and strand-strengthening proteins that work at the scalp level to address the root causes of thinning and shedding, not just the symptoms.
Is it safe for color-treated or chemically processed hair?
Yes. Kiierr Hair Growth Shampoo is gentle enough for daily use on color-treated, bleached, and chemically processed hair. The formula is free of harsh sulfates that strip color and damage the hair shaft.
How often should I use it?
For best results, use it as your everyday shampoo. Consistent use is key — the active ingredients are most effective when applied regularly, allowing them to build up and maintain a healthy scalp environment over time.
Do I need to keep using it long term?
Yes, and here's why. Hair growth is an ongoing biological cycle, not a one-time fix. The DHT-blocking and follicle-stimulating ingredients in Kiierr work by continuously maintaining a healthy scalp environment. Once you stop, DHT levels at the scalp begin to rise again, sebum and buildup return, and the conditions that caused thinning in the first place come back with them. Think of it the same way you would a skincare routine. The results are sustained by consistency. Customers who see the best long-term outcomes are those who make Kiierr part of their daily routine indefinitely, which is exactly why autoship exists, so you never miss a day.
Loved by 125,000+ Women
4.9 average from 2,214 verified reviews
DM
Diane M.
✓ Verified
I started using the Kiierr shampoo because I was noticing thinning around my temples and hairline, especially when my hair was wet or pulled back. Regular shampoos made my hair feel clean, but they never made it feel stronger or fuller. After using this consistently, my hair feels healthier, softer, and much less fragile. The thinner areas around my hairline look less noticeable, and I am seeing less shedding in the shower. I love that it fits into my normal wash routine and does not make my hair feel heavy or greasy.
MF
Monica F.
My crown was the area that bothered me most. I could see my scalp at the top/back of my head, especially in photos taken from above. I started using the Kiierr shampoo because I wanted something simple that could help my hair look healthier and support thicker hair over time. After consistent use, the crown area looks less sparse and my hair feels stronger overall. I also noticed less shedding when I wash my hair, which was a huge relief. My hair feels clean, soft, and easier to style.
NR
Nancy R.
After a stressful period, I started shedding a lot more than normal. I would see hair in the shower, on my brush, and all over my clothes. My hairline and sides started looking much thinner, so I decided to try the Kiierr shampoo. It made my hair feel healthier pretty quickly, and over time I noticed much less shedding when I washed. The thinner areas around the front look more filled in, and my hair feels stronger overall. I feel much more confident wearing my hair back now.
LB
Lauren B.
My biggest concern was my widening part. Every time I looked in bright bathroom lighting, my scalp looked more visible than I wanted. I switched to the Kiierr shampoo because I wanted something that would support my scalp and help my hair look fuller without needing powders or sprays every day. After a few months, my hair feels stronger at the roots and my part does not look as wide. It also leaves my hair soft and clean, which I really appreciate because some thickening shampoos make my hair feel dry.
AY
Abby Y.
My hair was not thinning in just one spot, but it looked limp, flat, and less full overall. The back of my hair especially looked stringy after washing, even when I used volume products. Since switching to the Kiierr shampoo, my hair feels softer, cleaner, and more lifted at the roots. It looks healthier from the back and has more natural body. I like that it gives my hair a fuller appearance without making it feel coated or stiff. It has been a really easy upgrade to my routine.
MJ
Melissa J.
My crown and center part were becoming more noticeable in certain lighting, and I hated how flat my hair looked after washing. The Kiierr shampoo has helped my hair feel fuller and stronger without making it feel dry. I have been using it consistently for several months, and my part looks less wide than it used to. The crown area also looks healthier and not as sparse. I like that it is simple, I just use it like a normal shampoo, but my hair feels much better afterward.
VR
Vanessa R.
The top of my hair had become so thin that I could see my scalp through the center, especially right after washing. I was nervous to try another shampoo because I did not want anything harsh or drying. The Kiierr shampoo has been easy to use and gentle on my hair. Over time, my hair started feeling thicker and healthier, and the top looks more filled in than before. I still know hair improvement takes patience, but I am really happy with how much better my hair looks and feels.
MZ
Marie Z.
My thinning was most noticeable on the top of my scalp where my hair naturally parts. Because my hair is lighter/red-toned, my scalp showed through more than I liked. I started using the Kiierr shampoo and stayed consistent, and my hair now feels stronger, smoother, and more manageable. The part area looks fuller than it did before, and my hair has more life to it after washing. It also feels less brittle, which makes styling so much easier. I am very happy with the progress.
LH
Linda H.
The side of my head near my temple had become really thin, and it made styling my hair difficult because certain angles showed too much scalp. I added the Kiierr shampoo to my wash routine and gave it time to work. My hair feels stronger, smoother, and healthier now, and the thin area along the side looks softer and less noticeable. It also gives my hair more volume without making it frizzy. Even my husband mentioned that my hair looked fuller, which made me feel so good.
May F.
My hair has gradually gotten thinner with age, especially around the front and sides. I wanted a shampoo that would help my hair look fuller but still feel soft and natural. The Kiierr shampoo has made a noticeable difference in the way my hair feels after washing. It feels cleaner, smoother, and stronger without being stripped. The front areas look a little fuller, and my hair has more body when I blow dry it. It is now one of the easiest parts of my hair routine to stay consistent with.
JR
Jenna R.
I had thinning near my temples and along the sides, which always showed when I tucked my hair behind my ears. I wanted a shampoo that could help my hair look thicker without weighing down my fine hair. The Kiierr shampoo has been great for that. My hair feels clean and soft, but still has volume. After using it consistently, the thinner side areas look less obvious and my hair feels stronger when I brush and style it. I also appreciate that it does not leave my scalp feeling dry.
SW
Stella W.
I wanted to get ahead of my thinning before it became worse. My hair was still long, but it was starting to look thinner at the top and flatter overall. I started using the Kiierr shampoo because it felt like an easy first step. After a few months, my hair feels stronger, fuller, and much healthier after washing. I am seeing less shedding, and my hair has more body when I style it. It still looks natural, just thicker and healthier than it did before.