Cleanse · Lift · Thicken
Density Boost Volumizing Shampoo
Sulfate-free volumizing shampoo with biotin and rice water that clears buildup and supports thicker-looking hair.
Density Boost Volumizing ShampooShampoo: Sulfate-Free
Density Boost Volumizing ConditionerConditioner: Lightweight
Hydro Balance Scalp SerumScalp Serum: Water-Based, Leave-In
60-day risk-free guarantee. Free US shipping $80+.
Details
- Coconut-derived, sulfate-free cleansers clear buildup without stripping natural oils
- Biotin and hexapeptide-11 reach the scalp to feed follicles during the wash
- Rice water delivers amino acids for strength, smoothness, and natural shine
- Fuller-looking hair in 8 to 12 weeks with daily use
- Color-safe and keratin-safe, massage in and let it sit for best results
- Targets
- Flat, Thinning-Looking Hair, Buildup
- Suited For
- All Hair Types
- Format
- Shampoo: Sulfate-Free
Clinical proof
- Increased hair fiber diameter in supplier testing for amaranth peptide
- Visibly fuller-looking hair in 8 to 12 weeks with daily use
Explore clinical studies
Independent, peer-reviewed studies on the named ingredient, not a clinical trial of this finished formula.
How to use
Massage into wet scalp and let it sit for a minute. Rinse thoroughly and follow with Density Boost Volumizing Conditioner.
Ingredients
Key ingredients
Rice Water, Biotin, Hexapeptide-11, Fermented Botanicals
Formulated without
Parabens, Sulfates, Dyes, phthalates, silicones, PEGs, MCI/MI, DEA, BHA/BHT, triclosan, lanolin, talc, petrolatum, mineral oil and formaldehyde-releasing preservatives.
Ingredients
Aqua (Water), Sodium Cocoyl Isethionate, Cocamidopropyl Hydroxysultaine, Sodium Cocoyl Glutamate, Cocamidopropyl Betaine, Panthenol, Oryza Sativa (Rice) Seed Water, Amaranthus Caudatus Seed Extract, Saccharum Officinarum (Sugarcane) Extract, Pyrus Malus (Apple) Fruit Extract, Hexapeptide-11, Biotin, Betaine, Camellia Oleifera Leaf Extract, Citrus Limon (Lemon) Fruit Extract, Saccharomyces Ferment, Lactobacillus Ferment, Phospholipids, Pentylene Glycol, Caprylyl Glycol, Sodium Phytate, Polyquaternium-10, Ethylhexylglycerin, Propanediol, Hydroxyacetophenone, Hexylene Glycol, Phenoxyethanol, Sodium Benzoate, Fragrance, Iso E Super, Limonene, Linalool, Linalyl Acetate, Benzyl Benzoate.
Quality standards
Made in the USA
Formulated, manufactured and filled in an FDA-registered, ISO 22716-certified facility.
GMP and third-party tested
Made under Good Manufacturing Practices and checked by independent third-party labs.
Cruelty-free
Never tested on animals.
Ships from the USA
Orders go out the same day or next business day.
Real people, real answers
Email support@dearalchemist.com and someone from our team will reply, usually within the hour.
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Sulfate-free volumizing shampoo with biotin and rice water that clears buildup and supports thicker-looking hair.
Coconut-derived, sulfate-free cleansers
Clear buildup without stripping natural oils
Biotin and hexapeptide-11 reach the scalp
To feed follicles during the wash
Rice water delivers amino acids
For strength smoothness, and natural shine
Results that build over time
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Day 1
Clean, lifted roots
- Coconut-derived cleansers clear buildup without stripping
- Sulfate-free and color-safe
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Week 4
A balanced scalp
- Biotin and hexapeptide-11 reach the scalp every wash
- Let it sit for a minute before rinsing
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Weeks 8–12
Fuller-looking hair
- Results build with regular use
- Pair with the Density Boost Conditioner
96%of 197 reviewers would recommend it
Key activeRice Water
A cleanse that builds density
Coconut-derived cleansers clear buildup without stripping, so biotin and hexapeptide-11 actually reach the scalp they're meant for. Massage it in and let it sit. The minute on your scalp is where the work happens.
Shop nowWhat's inside
Key ingredients
Compare
How it compares
| Density Boost Shampoo | Sulfate shampoo | |
|---|---|---|
| Sulfate-free | Yes | No |
| Clears buildup without stripping | Yes | Varies |
| Biotin and hexapeptide-11 for the scalp | Yes | No |
| Color-safe | Yes | Varies |
How to use
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01Wet hair and massage into the scalp — that's where the actives work. Let it sit for a minute.
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02Rinse thoroughly.
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03Follow with the Density Boost Volumizing Conditioner.
Customer results
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Individual results vary.
Based on 197 reviews
Would recommend this product
DENSITY BOOST VOLUMIZING SHAMPOO
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I use this with the Density Boost Conditioner and then finish with the Hydro Balance Scalp Serum. The three-step routine has completely stopped my shedding and my hair looks so much fuller.
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My fine limp hair has actual volume now. I pair this with the Density Boost Conditioner and my blowouts hold for three days instead of one. Game changer for thin hair.
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Four months in and the baby hairs growing along my hairline are proof this works. The biotin and peptides are doing their thing. My part line is less visible now.
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Sulfate-free and it still gives a good clean lather. My scalp feels balanced and my hair has bounce. Using it with the Scalp Serum for maximum results.
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Using this with the conditioner and Scalp Serum. The trio together gave me the thickest ponytail I've had since my twenties.
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My hair has never held a blowout this well. The volume from root to tip is incredible. Switched from a prestige brand and won't go back.
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Lathers nicely without sulfates which I appreciate for my color-treated hair. My highlights stay vibrant longer and the volume at my roots is noticeably better.
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My thinning crown was my biggest insecurity. After five months with this shampoo my stylist showed me photos of the regrowth. I actually teared up seeing the difference.
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The biotin and rice water combination is working. Three months in and I'm seeing less hair in my brush and more on my head.
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Sulfate-free but still gets a great lather. My scalp feels clean and balanced while my hair has real body and bounce.
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This shampoo gives my flat hair actual lift at the roots without drying it out. I noticed a difference after the first wash. My hair looks twice as full.
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Decent shampoo but runs out quickly. My thick hair needs a lot of product per wash. Formula is fine, just wish the bottle were bigger.
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I've tried every volumizing shampoo at Sephora and this beats them all. Lathers well, rinses clean, and my hair has real body for the first time.
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Nice clean formula with good volume. My only note is I go through it quickly since I wash every other day.
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My thinning hair was making me self-conscious. Two months of this shampoo and my hair looks so much healthier and fuller. My confidence is back.
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Solid volumizing shampoo. Clean scent, gentle formula. Works well with the conditioner. My only wish is a bigger bottle option.
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Finally, a shampoo that doesn't leave my fine hair limp by the end of the day. The volume actually lasts until my next wash. That never happens.
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Bought this for the volume claim and stayed for how healthy my hair looks. Less breakage, more shine, real body. On my third bottle.
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Good shampoo that delivers on volume. Takes a few washes for your hair to adjust if you're coming from a silicone-heavy product, but worth the transition.
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Bottle arrived with the cap off and shampoo all over the package. Shipping needs better sealing.
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My fine flat hair has lift I've never had. This shampoo gives root volume without drying out my ends. Total game changer for thin hair.
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My thinning crown area is filling in. I can part my hair without worrying about showing scalp. Confidence restored.
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At 55 my hair was getting thinner every year. Six months of this shampoo reversed the trend. My hairdresser confirmed new growth.
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Good volumizing shampoo. Lathers well and rinses clean. Takes a transition period if coming from silicone-heavy products but worth it.
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Color-safe and volumizing is a rare combo. My highlights last longer and my hair looks twice as full. Best shampoo I've found.
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Average volumizing shampoo. Works okay but nothing special for my thick coarse hair. Better suited for finer textures.
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Solid shampoo for fine hair. Gives root lift without making ends feel dry. Would appreciate a pump dispenser.
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Clean ingredients and it still lathers nicely. My scalp stopped being so oily between washes. Using every other day now.
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My curly hair felt stripped and dry after using this. Not enough moisture for textured hair.
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Still have questions?
Email support@dearalchemist.com and a real person will get back to you.
What hair concerns does this shampoo address?
Flat, thinning-looking hair and buildup. Sulfate-free surfactants clear the scalp so biotin and hexapeptide-11 can work at the follicle level.
Can I use this shampoo with the conditioner and scalp serum?
Yes — it's step one of the density system: shampoo, conditioner, then the leave-in Hydro Balance Scalp Serum.
How often should I use this shampoo?
As often as you normally wash. Massage into the scalp, leave for a minute, then rinse.
Is this shampoo suitable for color-treated hair?
Yes — sulfate-free cleansing won't strip color, and the fermented botanical complex suits all scalp types.
How long does it take to see results with this shampoo?
Cleaner, fuller-feeling hair from the first wash; visible density support takes 8–12 weeks.
Are the ingredients in this shampoo clean and safe?
Yes. The Density Boost Volumizing Shampoo is formulated without parabens, sulfates, dyes, silicones, PEGs, MCI/MI, DEA, BHA/BHT, triclosan, lanolin, talc, petrolatum, mineral oil, and formaldehyde-releasing preservatives. It is lightly scented. Cruelty-free — never tested on animals. Every formula is made in the USA in an FDA-registered, ISO 22716–certified facility that is cGMP and MoCRA compliant. The complete ingredient list is published on this page — nothing is hidden.
