Skip to content
Feel Confident® Thickening Shampoo 266mL — doctor-formulated sulfate-free shampoo for thinning hair with ROOTDefense™
Woman with visibly fuller, thicker hair after consistent use of Feel Confident Thickening Shampoo - Step 1 of the Feel Confident Hair System.
Close-up of Feel Confident Thickening
Shampoo texture — doctor-formulated sulfate-free shampoo for thinning hair
Feel Confident Thickening Shampoo for Fuller-Looking Hair - surrounded by coffee beans, pumpkin seed oil, saw palmetto and turmeric ingredients.
Feel Confident Thickening Shampoo 266mL — doctor-formulated sulfate-free shampoo for thinning hair with ROOTDefense™ - back side
×
×

Hair Thickening Shampoo

Benefits Plus

Experience less shedding and build stronger, fuller hair in just 12 weeks.

88% observed stronger, more resilient hair
91% improved overall hair health
Enhances natural volume & visible fullness
Disclamer

**Based on a 12-week clinical and consumer perception study of the Feel Confident Thickening Shampoo and Conditioner.

Feel Confident® Thickening Shampoo 266mL — doctor-formulated sulfate-free shampoo for thinning hair with ROOTDefense™
What is it Plus

Your first step to fuller hair. Increase volume and promote thicker-looking, more resilient hair with each lightweight cleanse. Powered by ROOTDefense™, our proprietary blend of botanicals and clinically supported ingredients, this sulfate-free, non-stripping shampoo gently cleanses and strengthens strands while supporting scalp hydration, creating improved conditions for scalp health.

Ideal for Plus

This shampoo is Ideal for anyone looking to enhance visible volume, strengthen strands, and support scalp health.

How to use Plus
  • Apply 1 to 2 pumps to wet hair, lather, rinse and follow with our Thickening Conditioner to fortify. For best results, use as part of the Feel Confident® Hair System.
Full ingredients list Plus

Water (aqua), sodium c14-16 olefin sulfonate, cocamidopropyl hydroxysultaine, cocamide mipa, sodium chloride, sodium methyl cocoyl taurate, phenoxyethanol, glycerin, polysorbate 20, fragrance (parfum), butylene glycol, hydroxypropyl guar hydroxypropyltrimonium chloride, sodium pca, panthenol, caffeine, starch hydroxypropyltrimonium chloride, benzoic acid, disodium edta, polyquaternium-7, dehydroacetic acid, coconut acid, linalool, sodium lactate, lactic acid, benzyl benzoate, urea, cocamidopropyl dimethylamine, limonene, sodium benzoate, citric acid, tetrasodium glutamate diacetate, serenoa serrulata fruit* extract, cucurbita pepo (pumpkin) seed oil, curcuma longa (turmeric) root extract, potassium sorbate, sodium hydroxide.

*saw palmetto

Information Warning Plus
  • For external use only. 
  • Keep out of eyes. Rinse with water to remove. 
  • Keep out of reach of children.
  • Do not use on damaged or broken skin.
  • Stop use and ask a doctor if rash occurs.
  • Not to be used as a replacement for medical hair growth therapy
As always
Leaping Bunny Certified — cruelty-free sulfate-free thickening shampoo by Feel Confident Leaping Bunny Certified
100% Vegan — Feel Confident Thickening Shampoo plant-based formula 100% vegan
Paraben-Free — Feel Confident Thickening Shampoo Paraben-free
Sulfate-Free — Feel Confident Thickening Shampoo gentle formula Sulfate-free

ROOTDefense® Signature Blend

The latest innovation in hair growth is here. Introducing our proprietary ROOTDefense®, Signature Blend of four science-backed ingredients—saw palmetto, pumpkin seed oil, curcumin, and caffeine— proven to reduce hair loss, support hair growth, and boost scalp circulation.

Saw palmetto ingredient used in Feel Confident haircare for scalp support
Saw Palmetto

anti-oxidant-rich supports scalp circulation and strengthens hair follicles while reducing DHT—a potent hormone that leads to hair loss.

Pumpkin seed oil ingredient used in Feel Confident haircare formulas
Pumpkin Seed Oil

is a highly effective, nutrient-rich oil known for nourishing the scalp, thickening hair follicles, and blocking DHT.

Curcumin ingredient used in Feel Confident science-backed haircare products
Curcumin

is an anti-inflammatory ingredient long trusted for protecting hair follicles, reducing hair loss, and creating a healthier scalp environment.

Caffeine ingredient used in Feel Confident thickening haircare formulas
Caffeine

helps extend hair’s growth phase by fortifying hair follicles, stimulating the scalp, and combating hair loss.

See What Consistency Looks Like

CLINICAL TESTING

Results you can see, confidence you can feel

  • 91% of participants reported noticeably fuller, healthier-looking hair and less visible hair breakage. 
  • 88% of participants reported less visible fallout and enjoyed the soothing, gender-neutral scent. 
  • There was a statistically significant increase of hair thickness
  • There was a statistically significant reduction of the fallen hair number

**Based on a 12-week study of the Feel Confident Thickening Shampoo and Thickening Conditioner. Measurements included instrumental testing and consumer self-assessments.

Read more
Hair density at baseline (T0) before 12-week Feel Confident Thickening Shampoo & Conditioner clinical study
Before
Hair density at 12 weeks (T12) after Feel Confident clinical study — statistically significant increase in hair thickness
After

 Not All Haircare Is Designed for YOUR Hair

Feel Confident® Hair System

Typical Hair Care Brands

Approach

Doctor-informed, scalp health–focused system

Single-product solutions

Formulation

ROOTDefense® Signature Blend

Generic cosmetic formulas

Routine Design

4-step routine designed to work cooperatively

Stand-alone products

Target

Comprehensive healthy hair environment

General hair cleansing and conditioning

Testing

Clinically studied ingredients, dermatologist-tested formulas

Limited / No Testing

Results Focus

Supports scalp health and helps hair look thicker with consistent use

Temporary cosmetic effects

MEET THE FOUNDER

Dr. Gary Linkov

Dr. Gary Linkov, a premier hair restoration specialist and plastic surgeon, is the foremost expert in scalp and hair health. When it comes to hair thinning and loss, he’s seen and heard it all, and he’s on a mission to demystify an industry that often profits from insecurities and misinformation. 

Driven by his own experience, Dr. Linkov is a passionate ambassador for alopecia areata, an autoimmune form of hair loss. He openly discusses the many different forms of hair loss and their real causes and has amassed over a million followers on his YouTube channel, where he offers transparency and education about hair health. Whether tackling dangerous hair growth myths, providing science-informed advice or developing best-in-class haircare, Dr. Linkov has become a trusted voice for credible guidance that impacts how people show up in the world.

88% observed stronger, more resilient hair
91% improved overall hair health
Enhances natural volume & visible fullness
Dr. Gary Linkov — Double Board-Certified Facial Plastic Surgeon specializing in Hair Restoration and Founder of Feel Confident®

Pairs Well With

What People Say

Customer Reviews

Overall rating: 4.7 / 5 from 127 reviews.

Customer photo review of Hair Thickening Shampoo

Too soon to know if this shampoo is actually doing anything as far as growing hair, but it makes the hair I have feel so much better and thicker than it actually really is. Thank you!

Customer photo review of Hair Thickening Shampoo

Hair has gotten thicker and fuller since using this shampoo. It's an excellent product!

Customer photo review of Hair Thickening Shampoo

Super happy with this shampoo and conditioner. Although it took almost 4 weeks to arrive, I immediately liked it upon use. My hair felt super nice and clean with a smooth finish. I am 63 and any frizzles I had from older hair did indeed disappear.

Customer photo review of Hair Thickening Shampoo

Great shampoo and has a nice smell that isn’t overwhelming. My second bottle now. I’ll be ordering the duo next with conditioner to see better results.

Customer photo review of Hair Thickening Shampoo

4.5 months of using shampoo post hair procedure.

Customer photo review of Hair Thickening Shampoo

I got a free sample size in the mail just by requesting one! It smells wonderful (with some orange notes). A little goes a long way, even with my long fine hair. After my hair dries, there is volume around the roots which is hard to get because my hair is waist-length! I began using Minoxidil five weeks ago and LED red light therapy 7 months prior to this, because my hair is falling out at the hairline. I absolutely love this shampoo and will be purchasing the full size with the conditioner, and probably the rest of the line. I'm so glad this product exists!

Customer photo review of Thickening Shampoo

Excellent product!

Customer photo review of Thickening Shampoo

I started using the full suite of Feel Confident hair thickening products during my postpartum shedding phase. I lost so much hair during that time, and with it, my confidence. Feel Confident quite literally helped me “feel confident” again!! The regrowth in my crown area is looking fuller and thicker than ever, and the thickening foam has helped with styling it so it doesn’t look flat, awkward, and lifeless. Would highly recommend!! Thank you Feel Confident :)

Customer photo review of Thickening Shampoo

I've been using the shampoo for several months now, and I love it! This is the best hairloss shampoo I've seen, and I think using it in the morning helps me wake up further still. I think the old bottle was fine, but the new one looks fancier (and holds more shampoo). Really great stuff!

Customer photo review of Thickening Shampoo

My hair seems pretty healthy and does pretty good job of cleaning but not drying out my hair!

Customer photo review of Thickening Shampoo

I love this FEEL CONFIDENT by Dr. Gary Linkov “Thickening Shampoo”. It makes my hair look fuller and healthier. I’m using it every other day. Highly recommended product. 🙌🏼

Customer photo review of Thickening Shampoo

Great product I highly recommend! Use twice a week to maximize growth results!

Customer photo review of Thickening Shampoo

I'm post-op from a recent hair procedure. Currently in the shedding/shedded phase. I'm hoping with the added use of the shampoo I will see good results in upcoming months.

Customer photo review of Thickening Shampoo

I am in love with these products. I have tried the entire line. I have noticed that the shampoo leaves my hair feeling soft and stronger. My hair feels slightly thicker and my brush doesn’t collect as much hair. I trust this product.

Customer photo review of Thickening Shampoo

Love the feel of this shampoo. Like that Im doing something good for my hair and my hair seems to thank me. Good product.

Customer photo review of Thickening Shampoo

Love the smell, luxurious lather and the fact that it makes my hair seem fuller. Not to gentle or overly harsh, this is a favorite by a longshot!

Customer photo review of Thickening Shampoo

This shampoo is great. Have been using it for around 8 months and wish I used it sooner. I used to use Head and Shoulders and have also tried some thickening shampoos from other brands. None have felt as good or gentle and effective as the Feel Confident line. No need for a separate dandruff shampoo or thickener shampoo. With the Feel Confident brand, my hair and scalp feels great and love how it looks. I also enjoy the skincare line.... just feels like all around quality products that work.

Customer photo review of Thickening Shampoo

Love these new bottles. Bigger size than the old ones and the pump is so nice. Have been using for awhile and hair feels stronger and have noticed less falling out in shower.

Customer photo review of Thickening Shampoo

I love this stuff! It helps to keep my hair looking thicker, despite thinning on the crown of my head. And, it smells great to boot. Though I can't say for certain that I've seen an improvement in hair density since I started using the shampoo, I'm comforted knowing that it contains ingredients that have been shown to promote hair preservation and growth. Although it's a bit on the pricier side, a bottle lasts a while if used judiciously.

Customer photo review of Thickening Shampoo

the shampoo is effective however keep my scalp dry

Customer photo review of Thickening Shampoo

Good product.

Customer photo review of Thickening Shampoo

Love the smell of the shampoo! Leaves hair smelling fresh and looking healthy.

Customer photo review of Thickening Shampoo

It works. It slows down hair loss.

Customer photo review of Thickening Shampoo

I had a hair tansplant like 3 months ago and after using the shampoo my transplanted hair does appear healthy and it does seem that possibly the shampoo is helping my hair grow in a more thick fashion, there does seem to be some results...

Customer video review of Thickening Shampoo

Love the product it's wonderful it does what it says it will do and that's fullness and my hair looks healthy!!! Thanks Dr. Gary!!!! 😊

Customer photo review of Thickening Shampoo

Really nice shampoo! Pleasant scent and lathers nicely. Scalp feels clean afterward, and I do think it thickened my hair a bit. Will definitely buy a second bottle.

Customer video review of Thickening Shampoo

The shampoo has really helped my hair grow! It’s second to none I love it

Customer photo review of Thickening Shampoo

I want to make sure that my hair stays full and as dense as possible as I get older. This thickening shampoo foams well with a small amount and leaves my hair feeling clean and healthy.

Been using for about 3 weeks and my hair hasn't looked this full in years! Gently and thoroughly cleans. Gives me an extra day with my somewhat oily hair. I've used other "thickening shampoos" and my hair does look fuller for that day but the next days look flat. With this the second day looks fuller also. Big plus for me. I'm not at all photogenic so am not including pictures. Your shampoo is fantastic!

This is my third bottle. Love the product! Have seen a mild difference over the course of 8-10 months, and that is what I was expecting. Combining with minoxidil as well.

Love it. A little goes a long way

Great gentle shampoo that can be used every day. And I’ve noticed much less loose hair in the shower.

Love the product, use it for daily hair wash!

I absolutely love the way the shampoo makes my hair smells and feels. Thank you!

My hair has been thinning for years and this shampoo is helping with my low confidence

it is a very good product !! love it !! i trust in the doctor

Works as advertised.

Excelkent 100% made in usa

Great

I’ve order the thickening shampoo three times already. Works well on my hair. I love the new bottle design.

Frequently Asked Questions

How often should I use the Thickening Shampoo?

Use it as often as works best for your hair and scalp. We recommend at least two to three times a week for optimal results.

Does it create a rich lather even though it's sulfate free?

Yes! Our gentle formula still gives a satisfying lather.

Does the shampoo contain sulfates?

No, it is completely sulfate free.

Does it contain fragrance?

Yes, our shampoo has a gentle, refreshing, gender-neutral fragrance.

Can I use the Thickening Shampoo with hair care products from other brands?

Our shampoo can be used with products from other brands. For optimal results, however, we recommend use with the rest of our haircare line.

Can all genders use this shampoo?

Yes, it is suitable for all genders.

Does the shampoo help reduce shedding?

Results vary, but many customers notice less shedding with regular use over time. See our clinical study results for more details!

How long does it take to notice results?

Results vary, but most see improvements after several weeks of consistent use. See our clinical study page for more details!

Is the shampoo safe for sensitive scalps?

Yes, our shampoo has been dermatologist-tested, but if you have a skin condition, we always recommend checking with your healthcare provider first.

Can I use it if I have dandruff or a dry scalp?

Our shampoo gently nourishes and soothes the scalp, but if you have any underlying skin conditions, we recommend checking with your healthcare provider prior to use.

Is it safe to use with color-treated hair?

Yes, safe for color-treated hair, though with any product and there is always a small risk of color fading or bleed.

Can I use the shampoo with prescription hair loss medications?

Yes, you may use our shampoo in combination with prescription hair loss treatment. It is not, however, meant to be replacement for prescription medications.

Is it cruelty-free?

Yes! All of our products are Leaping Bunny certified, cruelty-free, and never tested on animals.

Is it vegan?

Yes!