FOR HAIR THAT STOPS AT THE SAME LENGTH
Hair That Looks Fuller, Longer, and Healthier
You've tried gummies, oils, and every viral hair trick, yet your hair still won't grow past the same length. The secret isn't growing more hair—it's a routine that helps you keep more of it.
★★★★★ 4.7/5 | 134,430 reviews
- Rosemary + biotin + fermented Longsheng rice water actives that condition the strand at the surface, where breakage actually happens.
- Longer-looking ends, less breakage* fewer strands snap mid-length
- Biotin-supported thickness each wash supports fuller-feeling strands
- Sulfate-free, pH-balanced, vegan A gentle cleanse without harsh stripping or synthetic fragrance.

Rosemary Biotin Shampoo Bar for Thinning Hair
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Rosemary Biotin Shampoo Bar – Thinning Hair | VIORI
Rice water shampoo bar for thinning, shedding, or low-volume hair. This sulfate-free shampoo bar pairs rosemary extract and biotin with Longsheng rice water ...
Rosemary Biotin Shampoo Bar – Thinning Hair | VIORI
Rice water shampoo bar for thinning, shedding, or low-volume hair. This sulfate-free shampoo bar pairs rosemary extract and biotin with Longsheng rice water ...
Description
If you've already tried the gummies, the oils, and the scalp serums without seeing your part get thicker, this bar is built differently — because it starts where growth actually starts: your scalp, not your strands. Rosemary Leaf Oil supports circulation at the scalp surface, biotin reinforces the keratin infrastructure your hair is made of, and Longsheng rice water — used by the Red Yao women of southern China as their primary hair care treatment — delivers amino acids, inositol, and antioxidants that repair damage along the strand. The sulfate-free, pH-balanced formula lathers into a rich, creamy foam that rinses completely clean with no waxy buildup, so you're conditioning the scalp environment rather than coating strands with silicones or polymers that wash off and leave nothing behind. Results come from consistent use over months, not days — the scalp environment takes time to respond, and meaningful changes in density and shedding are more likely to show at the 3–6 month mark than in the first few weeks.
Ingredients
Sodium Cocoyl Isethionate, Behentrimonium Methosulfate, Longsheng Rice Water, Cocoa Butter, Sodium Lactate, Glycerin, Jojoba Oil, Cetyl Alcohol, Shea Butter, Butylene Glycol (Plant-Based), Stearic Acid, Hydrolyzed Rice Protein, Broccoli Seed Oil, Bamboo Extract, Rice Bran Oil, Vitamin B8, Vitamin B5, Rosemary Leaf Oil, Biotin, Lavender Flower Oil, Vitamin E, Marjoram Leaf Oil, Roman Chamomile Flower Oil, Peppermint Leaf Oil, Lemongrass Leaf Oil, Aloe Vera, Plai Root Oil, Kunzea Oil, Helichrysum Flower Oil
Ingredients Explanations
Sodium Cocoyl Isethionate — derived from coconut fatty acids; a mild, sulfate-free surfactant that cleans without stripping the scalp's natural moisture barrier. (EWG: 1)
Behentrimonium Methosulfate — plant-derived from rapeseed oil; a gentle conditioning agent that detangles without the buildup associated with silicone-based alternatives. (EWG: 1)
Longsheng Rice Water — fermented rice water sourced from Longsheng, China, where the Red Yao women have used it as their primary hair treatment for generations; delivers amino acids, inositol, and antioxidants to the strand.
Cocoa Butter — cold-pressed from cacao beans; adds emollient richness to the bar's lather and helps maintain scalp moisture. (EWG: 1)
Sodium Lactate — derived from the natural fermentation of sugars; a humectant that helps the bar hold its form and supports skin hydration. (EWG: 1)
Glycerin — plant-derived; draws moisture to the scalp surface and helps the lather rinse clean without residue. (EWG: 1)
Jojoba Oil — pressed from the seed of the jojoba shrub; structurally similar to scalp sebum, making it an effective non-comedogenic conditioner that won't clog follicle openings. (EWG: 1)
Cetyl Alcohol — derived from coconut or palm oil; a fatty alcohol (not a drying alcohol) that contributes to the bar's creamy lather texture. (EWG: 1)
Shea Butter — cold-pressed from the shea tree nut; rich in fatty acids that soften the hair shaft and support a balanced scalp environment. (EWG: 1)
Butylene Glycol (Plant-Based) — sourced from plant sugars rather than petroleum; a lightweight humectant and solvent that helps other ingredients distribute evenly. (EWG: 1)
Stearic Acid — naturally occurring fatty acid from plant sources; helps give the bar its firm, long-lasting structure. (EWG: 1)
Hydrolyzed Rice Protein — rice protein broken into smaller molecules so it can bind to the hair shaft; helps repair surface damage and adds visible thickness to fine strands. (EWG: 1)
Broccoli Seed Oil — cold-pressed from broccoli seeds; high in erucic acid, which gives hair a natural slip and shine without silicone coating. (EWG: 1)
Bamboo Extract — derived from bamboo stems; a natural source of silica that supports strand strength and resilience.
Rice Bran Oil — pressed from the outer bran layer of rice; rich in vitamin E and ferulic acid, an antioxidant that helps protect strands from oxidative stress. (EWG: 1)
Vitamin B8 (Inositol) — a naturally occurring carbohydrate found in rice water; helps reduce strand breakage by strengthening the hair's internal structure from the surface.
Vitamin B5 (Panthenol) — a provitamin derived from pantothenic acid; attracts and retains moisture in the hair shaft, contributing to flexibility and reduced breakage. (EWG: 1)
Rosemary Leaf Oil — steam-distilled from Rosmarinus officinalis; supports circulation at the scalp surface through the same general pathway as circulation-based topical treatments, without the irritation associated with some synthetic options.
Biotin — a B-vitamin (B7) that supports the keratin protein infrastructure hair is built from; most relevant as a structural support ingredient rather than a standalone growth trigger. (EWG: 1)
Lavender Flower Oil — steam-distilled from Lavandula angustifolia; appeared alongside rosemary in the Patel 2025 Rosmagain™ RCT as part of the tested combination formula; also contributes to the bar's herbal scent profile.
Vitamin E (Tocopherol) — a fat-soluble antioxidant derived from plant oils; helps protect scalp and strand lipids from oxidative damage. (EWG: 1)
Marjoram Leaf Oil — steam-distilled from Origanum majorana; a botanical in the same family as rosemary with a calming, herbal aromatic profile.
Roman Chamomile Flower Oil — steam-distilled from Anthemis nobilis flowers; known for its soothing properties on sensitive or reactive scalps.
Peppermint Leaf Oil — steam-distilled from Mentha piperita; produces a genuine scalp tingle via TRPM8 receptor activation — a real sensory experience, not just a scent effect.
Lemongrass Leaf Oil — steam-distilled from Cymbopogon citratus; contributes a clean, green note to the scent and has documented antimicrobial properties relevant to scalp hygiene.
Aloe Vera — gel derived from Aloe barbadensis leaf; soothes the scalp surface and contributes lightweight hydration without heaviness on fine hair. (EWG: 1)
Plai Root Oil — steam-distilled from Zingiber cassumunar, a ginger-family root native to Southeast Asia; used in traditional Thai botanical practice for its anti-inflammatory properties.
Kunzea Oil — steam-distilled from Kunzea ambigua, an Australian native shrub; valued for its calming effect on scalp irritation and its clean, camphoraceous scent.
Helichrysum Flower Oil — steam-distilled from Helichrysum italicum (immortelle); contains antioxidant compounds and is used in botanical formulations for its scalp-soothing properties.
How To Use
1. Wet your hair and scalp thoroughly with warm water — this is the most important prep step, especially in hard water areas where mineral buildup can sit on the scalp surface.
2. Rub the bar directly between your palms or in small circles at the crown and roots to generate a rich lather. Focus the bar on your scalp, not your lengths — that's where the rosemary, biotin, and rice water need to work.
3. Massage the lather into your scalp with your fingertips for at least 60 seconds. You should feel the peppermint tingle activating — that's the peppermint leaf oil engaging TRPM8 receptors at the scalp surface, a real physiological response, not just a scent effect.
4. Let the lather travel down your strands as you rinse; fine and wavy hair doesn't need additional product applied to the lengths.
5. Rinse thoroughly with cool or lukewarm water until the water runs completely clear — no residue, no waxy feeling. If you're in a hard water area and notice any dullness after drying, a diluted apple cider vinegar rinse once a week can help clear mineral deposits.
6. Use consistently 3–4 times per week as part of a broader routine. Give it a realistic runway — the scalp environment takes time to respond, and meaningful changes in density and shedding are more likely to show at the 3–6 month mark than in the first few weeks.
REAL RESULTS, REAL CUSTOMERS
What six months of consistent use actually looks like
Not overnight, not magic — just a scalp that's finally getting what it needs, wash after wash.
"I'd tried gummies, castor oil, and two different rosemary serums. Nothing seemed to make a difference until a friend gifted me a set of Viori bars. By month five, my hair looked fuller, especially around my crown. My hair definitely looked healthier, and my curls came back to life. Absolutely 10/10!"
"I have fine, straight hair, and I'm 46, so my part has looked wider over the past couple of years. I didn't expect a shampoo bar to do much, but wow, was I wrong. My stylist noticed my hair looked fuller and healthier and asked what I was using. I even recommended Viori to her! I'm so happy with my hair journey right now, that's all I wanted."
"I lost a lot of hair after having three kids and dealing with stress. I was very skeptical about shampoo bars and honestly didn't think they'd work. I've been using Viori for three months now, and my hair feels so much healthier and looks noticeably fuller. I couldn't be happier with the results!"
ONE SYSTEM · FOUR STEPS
The Full-Hair System
No single product changes how fast hair grows. So we built the routine around everything else that decides your length — two steps on your hair, two from within.
ON YOUR HAIR · WASH DAY

Rosemary Biotin Shampoo Bar – Thinning Hair | VIORI
Cleanses and conditions the fiber at the wash, where breakage starts.

Rosemary Biotin Conditioner Bar – Thinning Hair | VIORI
Adds slip at comb-out — the moment most length is lost to snapping.
FROM WITHIN · DAILY

Hair Beauty Vitamin™ – 30-Day Supply | VIORI
Biotin, collagen, keratin, and hyaluronic acid to support the look of healthy hair.†

Hair Growth Supplement™ – 30-Day Supply | VIORI
Rice protein and amino acids that support hair fiber structure and strength.†
Get all four — the Full-Hair System
Every job covered: strengthen, protect, nourish, fortify.
$82.96 $70.52 Save 15%
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
SUPPORT FROM WITHIN
What's inside the daily capsules
Your wash-day bars work on the outside. These two work from within — one for how hair looks, one for how it's built. Both start with the same Longsheng rice the Red Yao are known for.
Hair Beauty Vitamin™
The daily beauty base — supports the appearance of healthy-looking hair, skin, and nails.†
KEY INGREDIENTS
Longsheng Rice Protein Complex™
The shared base of both formulas — supports hair fiber structure and cosmetic strength.†
Biotin — 10,000 mcg
A familiar hair-care B-vitamin — supports the appearance of healthy-looking hair.†
Collagen + Keratin
The proteins hair is built from; support cosmetic strength and a healthy-looking finish.†
Hyaluronic Acid
Supports hydration and the look of soft, healthy hair.†
Complete B-Vitamin Complex
A full spectrum of B vitamins that support healthy-looking hair from within.†
Zinc + Copper (Iron-Free Balance)
Trace minerals in a balanced, iron-free pairing that support the look of healthy hair.†
Hair Growth Supplement™
The structural engine — supports hair fiber structure and cosmetic strength.†
KEY INGREDIENTS
Longsheng Rice Protein Complex™
The shared base of both formulas — supports hair fiber structure and cosmetic strength.†
Targeted Amino Acid Matrix
Building blocks that support hair fiber structure.†
Vitamin C
An antioxidant that supports the body's own collagen and healthy-looking hair.†
Zinc & Copper
Trace minerals that support hair fiber structure and strength.†
Inositol
Naturally present in rice; supports the strength of the hair fiber.†
Take both daily — beauty + structure, from within.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
FROM PEOPLE WHO'VE ALREADY TRIED THE GUMMIES, THE OILS, AND THE SERUMS
WHAT THEY NOTICED AT THE SCALP.
Real reviews from customers sharing what changed in their scalp feel, fullness, and routine over consistent use.
THE PROBLEM
YOUR SCALP IS BEING IGNORED.
Most hair growth products target the strand — the part that's already dead — while the scalp where growth actually starts goes untreated.
COATING, NOT CORRECTING.
Drugstore thickening shampoos are built around silicones and polymers that wrap each strand to fake fullness. The volume washes out by day two because nothing changed at the root.
Breakage is the thief
A strand that snaps at your shoulders erases months of growth in one comb-through. Multiply that across thousands of strands and length plateaus — while the ends that survive look thin and see-through.
The wrong product makes it worse
Harsh sulfates strip and roughen the cuticle. Rough strands grab each other, tangle, and snap under the brush. The harder you chase length, the more of it you lose at the sink.
THE ANSWER
Start at the Scalp
The Rosemary Biotin Shampoo Bar targets the one place every gummy, oil, and serum you've tried has skipped — your scalp environment, where growth actually begins.
Rosemary Leaf Oil conditions the scalp and clears the buildup that a heavy oil routine leaves behind. Peppermint Leaf Oil brings a cooling tingle — a sensation, not a promise, and we'd rather you know the difference. Biotin conditions the strand at the surface — the keratin your hair shaft is built from is exactly where breakage happens. And Longsheng rice water, rinsed through hair in the villages of southern China long before it became a trend, contributes amino acids, inositol, and antioxidants that smooth the look of damage along the length. The bar is sulfate-free, so it cleans without the stripping that leaves strands rough enough to snap. This isn't a standalone miracle — it's the consistent foundation a length routine is built on, and results take three to six months of regular use to show up where it counts: in your brush first, then at your ends.*
See the full system
Backed by the science
WHY IT WORKS
Three mechanisms — not marketing claims — behind what this bar does at the scalp.
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Rosemary and Circulation
Rosemary has been studied for its ability to support a healthy scalp environment. Research suggests that compounds naturally found in rosemary may help support scalp microcirculation, which is one reason it's become such a popular ingredient in haircare. In a 2015 clinical trial, topical rosemary oil produced similar improvements in hair count to 2% minoxidil after six months, with less scalp itching reported. More recent research has also shown improvements in hair thickness and reduced hair fall with leave-on rosemary oil formulations. While those studies evaluated leave-on treatments—not rinse-off shampoo bars—they highlight why rosemary remains a trusted ingredient in a consistent haircare routine.
2015 Rosemary Oil vs. Minoxidil Clinical Trial -
Biotin and Keratin Structure
Biotin's role here is structural, not promotional. Your hair strand is made of keratin — a protein — and biotin is a cofactor in the metabolic pathways that synthesize it. When keratin infrastructure is compromised, strands break before they reach length, making thinning look worse than it is. Two systematic reviews are honest about the limits: biotin shows consistent benefit primarily in people with an underlying deficiency, and improvements in multi-ingredient studies can't be attributed to biotin alone. This bar pairs biotin with hydrolyzed rice protein and amino acids from Longsheng rice water — ingredients that work alongside it on strand integrity, not instead of it.
Patel, Swink & Castelo-Soccio 2017 (Skin Appendage Disorders) — PMC -
Rice water and rice protein reinforce the fiber.
Longsheng rice water carries inositol and amino acids; hydrolyzed rice protein deposits along the strand and supports its tensile strength — the property that decides whether a hair survives a comb-through. Grooming studies show most length is lost mechanically: damaged hair snaps under everyday friction long before it reaches your goal.
Inamasu et al., 2010 (International Journal of Cosmetic Science) · Robbins & Kamath, 2007 (PubMed 17728947)
Our Story
THE STORY BEHIND THE BAR
From the rice terraces of Longsheng to your shower — the most powerful, clean haircare you have ever used.
How To Use Videos
WHAT MAKES VIORI DIFFERENT
Everything you want to know — answered in 30 seconds or less.
FAQ
GOOD TO KNOW BEFORE YOU BUY.
No — and no shampoo will, ours included. Growth rate is set by biology. What a shampoo can change is how much of that growth you keep: less breakage, stronger-feeling strands, ends that look longer over time.* If a product promises to speed growth from the outside, read the label twice.
Softness and easier detangling: the first couple of weeks. Visible length: months — length accrues about half an inch a month and only shows after it survives. We'd rather tell you that now than have you quit at week three.
Different jobs. Swallowed biotin covers a dietary shortfall — which is rare (NIH Biotin Fact Sheet). In a shampoo, biotin conditions the strand at the surface, where breakage actually happens.
The mechanism is the same on every head: strengthen the fiber, cut the friction. What varies is the routine — see the hair-type guide above. Reviewers on our rice-water bars run from straight to coily, and from their 20s to 65+.
The shampoo bar cleanses and tones. The conditioner bar seals in the moisture and amino acids from the rice water and protects the cuticle between washes. For bleached hair — which is porous and loses moisture quickly — using both gives you the full repair benefit. The shampoo bar alone is a meaningful upgrade over a sulfate purple shampoo, but the duo is where the real difference shows.
Yes — most people need 2–3 washes for their hair to adjust from liquid shampoo to a bar formula. During that time your hair may feel slightly different as it clears out residue from previous products. Bleached hair typically adjusts faster than untreated hair because the cuticle is already more open. Stick with it past the first wash.
Each bar lasts 60–80 washes, which is the equivalent of 2–3 bottles of liquid shampoo. The bar stays dry between uses when stored on a bamboo holder with airflow drainage, which extends its life significantly. If you are washing 2–3 times a week, one bar typically lasts 5–8 months.
30 days, any reason, full refund.