Soften · Detangle · Thicken
Density Boost Volumizing Conditioner
Weightless volumizing conditioner with biotin and hexapeptide-11 that conditions lengths without flattening roots.
Density Boost Volumizing ConditionerConditioner: Lightweight
Density Boost Volumizing ShampooShampoo: Sulfate-Free
Hydro Balance Scalp SerumScalp Serum: Water-Based, Leave-In
60-day risk-free guarantee. Free US shipping $80+.
Details
- Weightless argan oil smooths and detangles without pulling volume down
- Biotin and hexapeptide-11 support density at the root level
- No heavy silicones weighing fine hair down
- Color-safe and keratin-safe, every wash
- Pairs with Density Boost Volumizing Shampoo for best results
- Targets
- Flat, Thinning-Looking Hair, Weakness, Breakage
- Suited For
- All Hair Types
- Format
- Conditioner: Lightweight
Clinical proof
- Increased hair fiber diameter in supplier testing for amaranth peptide
- Visibly fuller-looking hair in 8 to 12 weeks with consistent use
Explore clinical studies
Independent, peer-reviewed studies on the named ingredient, not a clinical trial of this finished formula.
How to use
After shampooing, squeeze out excess water and apply from mid-lengths to ends. Leave 2 to 3 minutes, then rinse thoroughly.
Ingredients
Key ingredients
Rice Water, Biotin, Hexapeptide-11, Argan Oil
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), Cetearyl Alcohol, Behentrimonium Methosulfate, Cetrimonium Chloride, Panthenol, Oryza Sativa (Rice) Seed Water, Amaranthus Caudatus Seed Extract, Hexapeptide-11, Biotin, Argania Spinosa Kernel Oil, Ricinus Communis (Castor) Seed Oil, Avena Sativa (Oat) Kernel Oil, Saccharum Officinarum (Sugarcane) Extract, Pyrus Malus (Apple) Fruit Extract, Citrus Limon (Lemon) Fruit Extract, Citrus Aurantium Dulcis (Orange) Peel Extract, Camellia Oleifera Leaf Extract, Betaine, Phospholipids, Salicylic Acid, Saccharomyces Ferment, Lactobacillus Ferment, Hexylene Glycol, Hydroxyacetophenone, Leuconostoc/Radish Root Ferment Filtrate, Phenoxyethanol, Benzyl Alcohol, Sodium Benzoate, Sorbic Acid, 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.
Recommended togetherSave 25%
The three steps our customers pair most with this formula.
Discount applies automatically at checkout on 3+ items.
Weightless volumizing conditioner with biotin and hexapeptide-11 that conditions lengths without flattening roots.
Weightless argan oil smooths and detangles
Without pulling volume down
Biotin and hexapeptide-11 support density
At the root level
No heavy silicones
Weighing fine hair down
Results that build over time
-
Day 1
Soft lengths, volume intact
- Weightless argan oil smooths without weighing hair down
- No heavy silicones
-
Week 2
Smoother, shinier hair
- Easier detangling after every wash
- Rinse with cool water for extra shine
-
Weeks 8–12
Fuller-looking hair
- Used with the Density Boost Shampoo
- Color-safe for every wash
93%of 142 reviewers would recommend it
Key activeRice Water
Condition the lengths, feed the root
Weightless argan smooths mid-lengths to ends while biotin and hexapeptide-11 work at the root, conditioning that doesn't undo volume. No heavy silicones. Fine hair stays lifted, color stays true.
Shop nowWhat's inside
Key ingredients
Compare
How it compares
| Density Boost Conditioner | Heavy silicone conditioner | |
|---|---|---|
| Keeps volume in fine hair | Yes | No |
| No heavy silicones | Yes | No |
| Biotin and hexapeptide-11 | Yes | No |
| Color-safe | Yes | Varies |
How to use
-
01After shampooing, squeeze out excess water and apply from mid-lengths to ends.
-
02Leave 2–3 minutes; distribute with a wide-tooth comb.
-
03Rinse thoroughly — cool water adds extra shine.
Customer results
Before & after
-
Before 
After -
Before 
After -
Before 
After -
Before 
After -
Before 
After -
Before 
After
Individual results vary.
Based on 142 reviews
Would recommend this product
DENSITY BOOST VOLUMIZING CONDITIONER
-
Adding the Hydro Balance Scalp Serum after this conditioner has completely transformed my wash day routine. My scalp is healthy and my ends stay moisturized for days between washes.
-
I use the Density Boost Shampoo first and then this conditioner and my hair has never been this thick. The combo together has given me volume I haven't had since my twenties.
-
Second bottle. My flat, lifeless hair has so much more movement now. I can actually skip dry shampoo between washes because the volume holds.
-
I use this with the matching shampoo and the difference is visible. My ponytail is noticeably thicker. Even my hairdresser commented on it.
-
The hexapeptide-11 is what makes this different from every other volumizing conditioner. You can feel the protein strengthening your hair.
-
Decent conditioner but I have thick hair and didn't notice much volume difference. Probably better suited for finer hair types.
-
My color-treated hair was so damaged and thin. After two months of this conditioner, the breakage has stopped and my stylist says my hair is growing in stronger at the roots.
-
Good volumizing conditioner that doesn't leave residue. My thin hair appreciates the lightweight formula. Would love a larger bottle.
-
Great conditioner that detangles without weighing down my fine hair. Used with the Density Boost Shampoo and I can actually see my part line filling in after three months.
-
Six months of consistent use and my postpartum hair loss has reversed dramatically. My ponytail is twice as thick as it was in January. This conditioner is worth every penny.
-
My fine hair finally has body without feeling weighed down. This conditioner detangles without leaving residue. My blowouts last longer too.
-
Good conditioner for thin hair. Adds volume without the crunchiness some volumizing products leave. My hair feels soft and looks fuller at the roots.
-
My colorist said my hair feels healthier since I switched. The biotin and argan oil combo is doing something right.
-
I was using a heavy conditioner and my hair looked limp by noon. This gives lift that lasts until my next wash day.
-
Nice lightweight conditioner. Does what it says. I appreciate that it doesn't flatten my roots like heavier conditioners do.
-
Postpartum hair loss had me desperate. This conditioner along with the shampoo has helped my hair look and feel fuller as it grows back.
-
It's fine but not dramatically different from other volumizing conditioners I've used. My hair is thick already so maybe it's more suited for finer hair types.
-
My color-treated hair loves this. Doesn't strip color, adds volume, and my ends don't feel dry. Great alternative to salon conditioners at half the price.
-
My fine hair has actual volume that lasts. This conditioner detangles without weighing anything down. Blowouts last twice as long now.
-
Not enough slip for my curly hair. Couldn't detangle without pulling. Not the right formula for my hair type.
-
Nice conditioner for fine hair. Detangles well and adds some body. Takes a few weeks to notice the volume change.
-
My highlights used to feel straw-like. This conditioner keeps them soft and bouncy without dulling the color. Salon quality at home.
-
Postpartum hair loss was devastating. This conditioner helped my regrowth come in stronger and fuller. Four months in and seeing real change.
-
Using this with the matching shampoo and the Scalp Serum. My hair routine is completely Dear Alchemist now and the results are incredible.
-
Lightweight enough that my fine hair doesn't go flat. I can skip dry shampoo between washes now because the volume holds.
-
The argan oil in this makes my ends so smooth. No more frizzy flyaways and my hair actually has movement and bounce.
-
My ponytail used to be pencil-thin. After three months with this conditioner, it's visibly thicker. Even my hairstylist commented.
-
My thinning crown area looks noticeably fuller after three months. The biotin peptide combo is clearly working.
No reviews match that filter.
Still have questions?
Email support@dearalchemist.com and a real person will get back to you.
What hair concerns does this conditioner address?
Flat, thinning-looking hair, weakness, and breakage. Rice water and biotin strengthen while lightweight argan oil smooths without weighing hair down.
Can I use this conditioner with the matching shampoo?
Yes — they're built as a pair. The shampoo preps the scalp; the conditioner strengthens and smooths the lengths.
How often should I use this conditioner?
Every wash — apply from mid-lengths to ends, leave 2–3 minutes, and rinse thoroughly.
Is this conditioner suitable for fine or color-treated hair?
Yes — conditioning comes from lightweight argan oil rather than heavy silicones, so fine hair keeps its volume, and it's color-safe.
How long does it take to see results with this conditioner?
Softness and shine are immediate; denser-looking hair takes 8–12 weeks of consistent use.
Are the ingredients in this conditioner clean and safe?
Yes. The Density Boost Volumizing Conditioner 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.
