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Feel Confident® Thickening Scalp Serum — leave-in hair growth serum with niacinamide, peptides, amla and ROOTDefense™ for thinning hair
Feel Confident Thickening Scalp Serum — cruelty-free, vegan, paraben-free, sulfate-free certifications
Close-up of Feel Confident Thickening Scalp Serum texture — lightweight leave-in formula for stronger hair
Feel Confident Thickening Scalp Serum bottle surrounded by pumpkin seed oil, saw palmetto and turmeric ingredients
Feel Confident® Thickening Scalp Serum 50mL  — biotinoyl tripeptide-1, apigenin, oleanolic acid full ingredient list
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Hair Thickening Scalp Serum Leave-in

Benefits Plus

Strengthen hair at the root in just 8 weeks. Absorbs quickly without residue and revitalizes the scalp for healthier-looking hair.

37% increase in scalp moisturization
97% had improvement in scalp comfort
Enhances visible fullness at the roots
Disclamer

**Based on a 8-week clinical and consumer perception study of the Feel Confident Thickening Scalp Serum.

Feel Confident® Thickening Scalp Serum — leave-in hair growth serum with niacinamide, peptides, amla and ROOTDefense™ for thinning hair
What is it Plus

A lightweight, fast-absorbing serum designed to support scalp health and long-term follicle vitality for hair that appears stronger at the root with improved visible density over time. Ideal for daily use.

Ideal for Plus

Suitable for all hair types seeking improved scalp health and visible hair density.

How to use Plus
  • Shake well before each use. Apply serum directly to scalp, sectioning wet or dry hair and focusing on areas of concern. Gently massage with fingertips. Do not rinse. Use daily for optimal benefits. Style and boost with our Feel Confident® Thickening Foam.
Full ingredients list Plus

Water (aqua), propanediol, butylene glycol, pentylene glycol, glycerin, phenoxyethanol, acetamide mea, panthenol, caffeine, niacinamide, ppg-26-buteth-26, peg-40 hydrogenated castor oil, carbomer, ethylhexylglycerin, cucurbita pepo (pumpkin) seed oil, aminomethyl propanediol, phyllanthus emblica fruit extract, acetic acid, serenoa serrulata fruit* extract, apigenin, curcuma longa (turmeric) root extract, sodium benzoate, potassium sorbate, oleanolic acid, biotinoyl tripeptide-1, tocopherol, nicotiana benthamiana octapeptide-30 sh-oligopeptide-2, nicotiana benthamiana hexapeptide-40 sh-polypeptide-9, nicotiana benthamiana hexapeptide-40 sh-polypeptide-86

*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.

37% increase in scalp moisturization
97% had improvement in scalp comfort
Enhances visible fullness at the roots
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: 4.8 / 5 from 35 reviews.

Customer photo review of Hair Thickening Scalp Serum Leave-in

The serum is excellent . My hair was falling off lots when I wash my hair but after using the serum for about two weeks much less hair came off . I used it about three to four times a week . I also use the Foam before I style my hair . I use the shampoo and the conditioner . I try to leave the conditioner for about 15 to 20 mins . Great product .

Hair Thickening Scalp Serum Leave-in

Customer photo review of Hair Thickening Scalp Serum Leave-in

I have only been using the serum for about a month but it feels good on the scalp and does not affect my hair's texture which is nice. Styling is not an issue. I have not seen specific results yet with the exception of baby hairs around the scalp at the hairline. That particular area appears to be filling in.

Hair Thickening Scalp Serum Leave-in

Customer photo review of Thickening Scalp Serum

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 :)

Thickening Scalp Serum

Customer photo review of Thickening Scalp Serum

I had healthy hair before using this product, but I wanted to add it into my routine as an early preventative measure for hair loss. I appreciate the researched backed ingredients, and have noticed that my scalp feels much better after a month of use (less itching and a grease feeling). Obviously not a replacement for medical treatment, but something I would consider if you can afford it! The pictured dropper also worked well.

Thickening Scalp Serum

Customer photo review of Thickening Scalp Serum

Was seriously receding and shedding but now I’m being complimented for thick fuller hair! I simply can’t thank Dr. Linkov and his wonderful team enough ✌️

Thickening Scalp Serum

Customer photo review of Thickening Scalp Serum

Was very excited to see Dr. Gary come out with a scalp serum. I love that this serum comes in a box. The box and bottle both have a luxurious feel. I have only been using for about a month mostly at my temples. Something about this serum just makes my scalp feel refreshed and makes me feel good that I am taking care of myself. 4 stars only because I want to see what happens after another month of use - will hopefully be updating my review to 5 stars if there is any improvement at the temples!

Thickening Scalp Serum

I've never used a scalp serum that works. I had a slightly itchy scalp and some hair shed. The scalp serum resolved both. I was actually shocked. I've been using for about 3 weeks and have minimal hair shedding daily and on wash days, my scalp feels hydrated, and it doesn't make my hair feel greasy or weighed down. I'll definitely be trying the other products. Thank you!

Hair Thickening Scalp Serum Leave-in

My Holy Grail!!!! First and foremost, super grateful that it's not a dropper. I saw results with this product almost immediately to the point that I really believed it was a placebo effect, but NO! It has been a month of consistent use and my temple areas have started to fill in and I am seeing a significant amount of regrowth in the center of my scalp. I am too excited to see what my results will be after some more time of consistent use. Wish I would have started sooner but happy that im using it now.

Hair Thickening Scalp Serum Leave-in

I have been using feel confident hair products for over a year and I couldn’t be happier with my hair and scalp.Thank you Dr Linkov for putting such wonderful hair products on the market that really work.

Hair Thickening Scalp Serum Leave-in

Personally, I saw results immediately!!!!! I wasn't expecting it to since I understand these kinds of products take time to show results but I was pleasantly surprised. It's also very easy to use.

Hair Thickening Scalp Serum Leave-in

I have used 2 bottles of the thickening serum and see real results! My hair feels soft, yet fuller after application and my part is not as wide. Also, it does not leave your hair greasy at all. Like all Feel Confident products, I am thrilled with the results! Definitely a thumbs up!

Thickening Scalp Serum

Difficult to know if it's doing anything, or, -if it's doing anything more than any other plant or herb based oil would do. I hoped I would feel immediate moisturizing effects and less scaling, because it's so very expensive. So I won't be purchasing it again. I prefer an oil that make my scalp tingle, so I know my scalp is being stimulated, and if it smells great, that also has a positive effect.

Thickening Scalp Serum

I mainly got this because my scalp has been super itchy lately and it’s helped more than I expected. It doesn’t completely fix it, but it’s definitely calmer and not as dry between washes.

Thickening Scalp Serum

I have pretty dry hair/scalp and this feels more like skincare than a hair product. It soaks in fast and doesn’t leave any residue, which makes it easy to use on the regular.

Thickening Scalp Serum

Not a miracle product, but I’ve noticed less hair coming out when I brush, which was my main concern. I think it’s one of those things you have to be consistent with.

Thickening Scalp Serum

Honestly didn’t think this would help much, but after a month my part looks slightly less wide. It’s subtle, but I wasnt expecting to see much of anything after just a month so seeing some progression makes me happy.

Thickening Scalp Serum

Super lightweight, doesn’t make my hair greasy which I was worried about. I’ve noticed less shedding in the shower, so definitely sticking with it.

Thickening Scalp Serum

Would rate this ⭐️⭐️⭐️⭐️⭐️ for the dropper alone. I’m big on aesthetics, I like how soft the bottle feels, I like the button for the dropper and how it feels when you press it. The serum itself is nice & not oily. I subscribed since im a routine kinda person so I’ll report my progress back in a few weeks.

Thickening Scalp Serum

Me encanta este producto. Es fácil de usar y muy práctico para viajar.

Thickening Scalp Serum

Not usually a fan of any serum, but this one works for me. I dont think its meant to help with itching, but its helped with mine, not that thats the reason I got it. I dont necessarily see progress, but I feel it when I run my fingers through my hair - for reference i've been using it for 3 weeks.

Thickening Scalp Serum

I’ve been using the Serum consistently and love how lightweight and soothing it feels on my scalp. After a few weeks, my hair looks fuller and healthier! Will be keeping this on my daily routine.

Thickening Scalp Serum

I love this hair serum! As a fine oily hair girl, this serum doesn't weigh my hair down nor make it greasy! My scalp feels so refreshed and noticed less shedding!

Thickening Scalp Serum

Did not flare up my contact dermatitis which I suffer from as a result of a lot of ingredients in other hair growth serums

Thickening Scalp Serum

I love this serum! Does not make hair greasy and definitely notice a reduction of shedding during shower

Thickening Scalp Serum

This serum has been working well for me. Not sure if it’s the product alone or if it’s been working well since I use all of the products together. Overall, I like that it doesn’t weigh my hair down and doesn’t make a mess on my pillows when I sleep.

Thickening Scalp Serum

I have carpel tunnel and I love that this product is so easy to use. I have a hard time squeezing some droppers because of the weakness in my hands but the push cap is so smooth that it allows me to apply it effortlessly.

Thickening Scalp Serum

I LOVE IT. My hair looks more healthy and thicker now.

Thickening Scalp Serum

I like this serum, it feels lightweight and my scalp seems less dry and tight. I haven’t noticed dramatic thickening yet, but I’m only about 3 weeks in, so I’m going to keep going to see if more changes happen over time. Worth a try if you’re patient and consistent.

Thickening Scalp Serum

I started using this because my hair has been feeling thinner on top, and even after a few weeks I’ve noticed less shedding when I brush. My scalp also feels calmer and more nourished. I haven’t hit a huge “wow” moment yet, but I’m encouraged by the progress and plan to keep using it.

Thickening Scalp Serum

So far so good. I dont think I have been using it long enough to give a full review but I like how it feels and Ive noticed some regrowth. I use it with the shampoo and conditioner and as much as I would like to say my results are from the serum, I really just think all the products are working well together.

Thickening Scalp Serum

I absolutely love this scalp serum!!! I use it once a day and it has made my scalp less dry and itchy, and my hair just feels so much healthier overall. I had lost some volume over the last year from postpartum shedding that took a huge toll on my confidence and now it’s starting to get life again.

Thickening Scalp Serum

I’ve been using this scalp serum daily for about 6 weeks and have noticed a real difference in how healthy my hair feels. My scalp feels less irritated, and I’ve even seen some baby hairs starting to fill in where my hair had been thinning. It’s lightweight, doesn’t feel greasy, and I like that I can use it on either wet or dry hair. Would definitely recommend! Hoping to see even more results as time passes.

Thickening Scalp Serum

Frequently Asked Questions

How do I use the scalp serum?

Shake well, then apply a few drops directly to your scalp, focusing on areas of concern. Gently massage with your fingertips and do not rinse.

Can I apply it throughout my hair or should I just apply to my scalp?

This product is designed to be applied directly to the scalp, as it hasn’t been specifically tested for full-hair application.

How often should I apply it?

We recommend using the scalp serum once daily for optimal results.

Should I apply it to dry or damp hair?

Serum can be applied to either dry or damp hair.

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

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

How much serum should I use per application?

Just a few drops per area are enough.

I noticed the dropper isn't full. Is there something wrong with my bottle?

This is normal and intentional. The dropper is designed to hold a partial amount for precise, controlled application and to prevent waste.

Is the scalp serum suitable for curly or textured hair?

Yes, it works on all hair types and textures

Does the serum leave hair greasy or sticky?

No, our serum should asborb quickly without residue.

Can it be used with all hair types?

Yes, it is suitable for all hair types.

Can men and women use this serum?

Yes, it’s suitable for all genders.

Does it have a fragrance?

No, our serum is fragrance free.

Is this serum safe for sensitive scalps?

Yes, but if you have a skin condition, check with your healthcare provider first.

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

It is generally well tolerared, but we recommend checking with your healthcare provider prior to using.

Can I combine the serum with dermarolling or PRP treatments?

Our serum is meant to be used on intact skin. We recommend waiting until the skin fully heals after dermarolling or PRP with needles prior to use.

Is it safe for color-treated hair?

Yes, it is safe for color-treated hair.