







Product description
Thorn & Berry Scalp and Hair Serum Daily Use And Benefits
Boost hair density with the Thorn & Berry scalp serum for thinning hair! Our biotin infused topical caffeine hair serum is designed to support healthy hair growth, thicker, fuller-looking hair, while also helping to reduce the appearance of hair loss. Our non-greasy hair strengthening treatment moisturizes and deeply nourishes the scalp for optimal hair health.
Powered by Peptides (Copper Tripeptide-1 & Acetyl Tetrapeptide-3), our advanced formula strengthens follicles, reduces shedding, and helps promote natural regrowth. Niacinamide and panthenol boost scalp health and hydration, while hydrolyzed keratin and amino acids repair and fortify damaged strands.
Infused with a potent blend of botanicals and essential oils — including rosemary, peppermint, tea tree, green tea, (saw palmetto as a natural DHT blocker), pumpkin seed, horsetail, and nettle extracts — this serum energizes circulation, balances oil, and refreshes the scalp. Antioxidants like bakuchiol, astaxanthin, sea buckthorn, and licorice root protect against environmental stress, keeping your scalp healthy and resilient.
Perfect for men and women or all hair types experiencing thin hair, postpartum hair loss, or weakened, damaged strands, Thorn & Berry absorbs quickly without buildup, leaving your scalp soothed and your hair looking stronger, denser, and more vibrant with every use. Ideal for fine hair prone to breakage, our thickening hair serum is safe, plastic-free, and cruelty-free. It’s designed for all hair types. Whether you have long black or blonde hair or curly, frizzy hair, Thorn & Berry delivers the daily care your hair deserves.

Powerful Hair Thickening Serum Blend for a Balanced Scalp & Desnity Boost

Thickening Hair Serum
This lightweight, non-greasy serum penetrates deep into the scalp to stimulate hair follicles, reduce hair fall, and boost natural volume and hair density. Hair repair just got easier with powerful anti-breakage care that strengthens brittle hair.

Biotin for Stronger Hair
Revitalize your hair with the power of Biotin, the essential Vitamin B7 known to restore life to dull, lifeless strands. By supporting natural keratin production, the key protein that builds strong, healthy hair, Biotin helps encourage faster growth from the root while reinforcing the hair shaft to reduce breakage, split ends, and shedding. With regular use, your hair feels stronger and more resilient, and looks visibly healthier as luster is restored, frizz is smoothed, and natural shine is enhanced, leaving your hair vibrant, silky, and full of life.

Zinc for Oil Control & Scalp Balance
Zinc plays a vital role in maintaining a healthy scalp and supporting the natural hair growth cycle. This essential mineral helps balance oil production, keeping the scalp clear and nourished while preventing buildup that can block follicles. By supporting cell renewal and repair, Zinc strengthens hair at the root, helps reduce thinning and shedding, and promotes stronger, more resilient strands. Regular use leaves your scalp refreshed and your hair looking fuller, healthier, and more vibrant.

Niacinamide for Soothed, Irritation-Free Scalp
Niacinamide, also known as Vitamin B3, is a powerful ingredient in hair serums that helps balance scalp oil production, improve circulation, and strengthen hair from the roots. It nourishes the scalp by enhancing its barrier function, reducing dryness, irritation, and flakiness, while boosting blood flow to deliver essential nutrients to hair follicles. This results in stronger, more resilient strands, reduced breakage, and improved elasticity.
Hydrating Hair Serum Essentials for Nourished Scalp Treatment

Sulfate Free Hair Serum
Our leave-in hair serum is formulated to nourish your scalp without harsh chemicals. Thorn & Berry is free from sulfates, parabens, and silicones, providing clean, effective care for healthier hair. Bring back your hair’s natural beauty and let it feel good again.

Panthenol for Deep Hydration & Shine
Panthenol is a provitamin of Vitamin B5, widely used in hair care for its moisturizing, strengthening, and soothing properties. It converts into pantothenic acid when absorbed, improving hair and scalp health.

Arginine to Boost Circulation & Follicle Health
Arginine is an essential amino acid naturally present in hair and skin. It plays a key role in supporting scalp circulation and strengthening the hair structure.

Vitamin E as an Antioxidant Shield Against Damage
Tocopherol is a powerful, fat-soluble antioxidant more commonly known as Vitamin E. Naturally found in plant oils and nuts, it’s widely used in hair and scalp care for its ability to protect, repair, and nourish both the hair fiber and scalp.
Package Dimensions : 4.41 x 2.17 x 1.18 inches; 5.61 ounces
UPC : 199284652330
Manufacturer : Thorn & Berry
ASIN : B0FR6KB6C2
Best Sellers Rank: #47,811 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #192 in Scalp Treatments
Customer Reviews: 4.6 4.6 out of 5 stars (34) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Supports Thicker, Fuller Hair – Advanced scalp and hair serum for thinning hair powered by peptides, biotin, and caffeine to strengthen follicles and support the appearance of healthy hair growth and healthy-looking density.
Scalp Revitalizing Serum – Our Peptide & Niacinamide Complex with Copper Tripeptide-1 and Acetyl Tetrapeptide-3 work with niacinamide to revitalize the scalp and encourage hair fullness. Our lightweight, non-greasy scalp serum absorbs quickly and is ideal for daily use and all hair types.
Hair Repair & Protection – Hydrolyzed keratin and amino acids help rebuild brittle and damaged strands, improve elasticity, and promote shinier, stronger, and healthier-looking hair.
Natural Botanical Oils and Extract Blend – A restorative mix of rosemary oil, tea tree oil, peppermint, saw palmetto, pumpkin seed, nettle, horsetail, and green tea extracts helps nourish roots, support scalp balance, fortify weak strands, reduce the appearance of visible shedding, and promote scalp health.
Energizing Scalp Care & Nourishing Scalp Treatment – A biotin hair serum with caffeine, zinc, vitamin E, arginine, and more helps refresh the scalp, invigorate follicles, strengthen roots, boost scalp circulation, and help reduce breakage. This clean formula creates optimal conditions for healthy-looking hair—without buildup, harsh chemicals, or sulfates.
Hydrates & Soothes – Glycerin, panthenol (vitamin B5), and bisabolol deliver lasting moisture to hydrate the scalp, calm dryness, soothe irritation and sensitivity, and help comfort fine thin hair.
8 reviews for Thorn & Berry Scalp Serum For Thinning Hair & Density Booster | Hair Thickening And Strengthening Treatment For Damaged & Thicker Hair | Biotin Hair Oil With Rosemary, Peppermint, And Topical Caffeine
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$14.59

S. Ilioi –
amazing!!
Great product!! I love that it doesn’t leave your hairy greasy, smells great and can already tell baby hairs coming in!!
Shelby Brown –
BEST EVER Hair serum for CURLY HAIR
BEST EVER Hair serum for CURLY HAIR !!!!! I’ve never written a review before, but this product is SO AMAZING that I had to share how good it has been for my Curls !! My curls have NEVER been so soft and yet, so defined !! I have tried LITERALLY EVERY product I can find on the market and this one is a KEEPER !!!! So, Curly folks . . . get this product ASAP!!!! Your ONLY regret is that you didn’t try it out sooner!!!!!
Lena –
Scalp serum
This scalp serum is a nice and inexpensive way to treat yourself and pamper your hair. You’re supposed to use the scalp after a shower, but I kind of feel like it weighs my hair down so I like to use it before. If you use it after your hair is way down easily, maybe just use a few tiny drops and dilute it with some water. I haven’t noticed too much of a difference, but it does feel nice to be paying attention to your scalp health.
David Munzer –
MUST BUY!
I’ve been using this hair serum for about a week, and I’m really impressed with the results. I’m big on copper peptides, and they seem to be making a real difference. It might be too soon to tell, but my hair already feels thicker and healthier, and I’ve noticed less shedding. I leave it in, and it absorbs quickly without leaving any greasy residue. The scent is light and not overpowering. I’ll definitely grab another bottle.
Leo –
Love it!
This stuff is great! Its made my hair so soft and it feels amazing! I normally have super oily hair and often can’t wash my hair too much because of how oily it gets. But this stuff, I’m not sure how it’s working, but it’s keeping my hair from getting too oily and it’s also not very oily itself. My hair feels perfect! I can’t recommend it enough!
Leah branham –
Product is amazing
I love this scalp serum. The first thing that stuck out is that it smells amazing. I’m not sure if it’s the rosemary or the peppermint but the smell is bomb. I used it daily to help with thinning hair and hair growth. One thing I love about Thorn & Berry is that it doesn’t make my hair feel greasy like some other hair products do. It makes my hair feel light and nourished which is exactly what I was looking for.
Amazon Reviewer –
Continued use is necessary.
I thick the characteristic of these types of products is their focus on continuous use, rather than seeking short-term results. The key is to nourish the scalp, allowing hair to grow in a healthier environment.
JuJu Couture –
Amazing product!
What an amazing product! Definitely recommend and would purchase again. I’m very happy with my results