Densify Concentrated Shampoo
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A sulfate-free shampoo for fine or thinning hair that instantly boosts volume and thickens strands.
What it does
- Instantly adds volume and bounce
- Minimizes hair fallout due to breakage
- Promotes a healthy, balanced environment for thicker, fuller-looking hair over time
Why you'll love it
This density-boosting shampoo is fermented to feed roots, scalp + hair the nutrition needed to help minimize hair fallout + shedding due to breakage, helping hair appear thicker and fuller over time. Made with no added water, this formula is less wasteful, more powerful and ultra-concentrated.
Who it's for
- HAIR TYPE: Fine or Thinning
- SCALP TYPE: All
This shampoo is made for fine hair and all hair types experiencing signs of thinning. It's also suitable for chemically-treated hair, color-treated hair and all scalp types.
Ingredients (INCI)
Lactobacillus/(Centella Asiatica/Coffee Seed/Ganoderma Lucidum/Hops/Panax Ginseng Root/Scutellaria Baicalensis Root) Extract/Pea Extract/Rice Seed Extract Ferment Filtrate, Aqua/Water/Eau, Sodium Lauroyl Methyl Isethionate, Sodium C14-18 Olefin Sulfonate, Cocamidopropyl Hydroxysultaine, Sodium Lauroyl Lactylate, Betaine, Sodium Cocoyl Alaninate, Lauryl Glucoside, Glyceryl Laurate, Sodium Chloride, Glycerin, Butylene Glycol, Glycol Stearate, Oligopeptide-2, Glycoproteins, Glycolipids, Amaranthus Caudatus Seed Extract, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Lactic Acid, Hydroxypropyltrimonium Inulin, Coco-Glucoside, Glyceryl Oleate, Cetyl Alcohol_, 1,2-Hexanediol, Sodium Cocoate, Guar Hydroxypropyltrimonium Chloride, Fragrance/Parfum, Sodium Sulfate, Citric Acid, Hydrogenated Palm Glycerides Citrate, Tocopherol, Sodium Benzoate, Limonene, Linalool [ILN 156335]
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Goes with it
Hair
Fine or thinning
Made for fine hair and all hair types experiencing signs of thinning.
Scalp
All scalp types
Sulfate-free, and made with no added water.
Color
Suitable for color-treated hair
And for chemically treated hair.
The routine behind the result
Visibly thicker, fuller hair in as few as 90 days, with the full Densify routine.
Unretouched photos after 90 days of the Densify Shampoo, Conditioner and Serum; individual results will vary. Based on an expert grading evaluation on 34 panelists.
How to use Densify Shampoo

- Pump a little into your palm. You can always add more.
- Lather and massage into your scalp.
- Rinse well.
- When empty, recycle the rinsed aluminum bottle and move the pump to your next one.
What’s in it, and what isn’t.

Rootbiomic Ferment™
Our multivitamin superfood: clinically effective proteins, roots and mushrooms, fermented into micronutrients for active, anchored roots, a balanced, hydrated scalp and visibly stronger, healthier hair.

Amaranth Peptides
Visibly thicken the diameter of hair strands for instant fullness.

Inulin
Cleanses with a moisturizing lather while keeping hair anchored at the root.
4.5 out of 5, from 21 reviews.
Densify Shampoo on REVIEWS.io, as of 9/24/26
Questions? We’re rooting for you.
Still curious? Email hello@therootist.com and a team member will be happy to help.
Are your products vegan and cruelty free?
We never test on animals, and all of our products are 100% cruelty-free and vegan friendly. We’re also proud to be Leaping Bunny certified.
Can I use your products on color-treated hair?
All Rootist formulas are designed to be suitable for color treated hair. We avoid harsh surfactants and stripping ingredients to help protect the longevity of color.
Which products are silicone-free?
ALL Rootist products are formulated without silicones. Why? Silicones are pervasive in conventional hair formulas because they offer a temporary fix, like a coating of plastic vinyl over a surface. That’s not our goal. We formulate for the biology and holistic health of the roots, scalp and hair.
Can I use your products if I am pregnant or breastfeeding?
Only your obstetrician can tell you what’s safe for you, but we are not aware of any contraindications during pregnancy or breastfeeding. None of our formulas is made with parabens, formaldehyde, chemical sunscreens, retinol, synthetic hormones or drugs, including minoxidil. If you have any specific questions, we’d recommend that you take a list of the ingredients (found on any product page) to your doctor.
Where are your products made?
Rootist products are produced with globally-sourced ingredients and materials, and made in the U.S. and South Korea.

Worth Rooting For
Typical shampoos are mostly water. Our eco-conscious shampoo is made with no added water and ultra-concentrated. Our smaller, lighter, easily recyclable bottles help us minimize the impact of shipping our products, too.






