Dr. Groot
Award WinnerBest SellerScalp Revitalizing Solution Hair Thickening Shampoo
Designed to improve scalp health, this formula promotes stronger, healthier hair growth in 2 weeks, leaving your locks looking irresistibly thicker and fuller. Elevate your hair's volume and vitality with our biotin, rosemary and caffeine-powered shampoo, enriched with capsulated prebiotics. -- AS SEEN IN WOMEN'S HEALTH, INSTYLE, NYLON OPRAH DAILY
Dry Scalp · Thin Hair · Low-Volume Hair · Damaged Hair
Purchase Options
Subscriptions check out with PayPal or Shop Pay.
Your order includes
- Free shipping over $50 — and free returns
- 2 free samples with every order
15% off your first order
Apply at checkout — new customers only.
Complete the routine
Scalp Revitalizing Solution Hair Thickening Conditioner
$33.00
Scalp Revitalizing Solution Scalp Barrier Boost Oil in Serum
$37.00
Details
A scalp-first thickening shampoo powered by biotin, rosemary, and caffeine with capsulated prebiotics that nourish follicles for stronger, fuller-looking hair from the root.
Formulated without parabens, silicones, or sulfates. Dermatologically tested for all scalp types.
How to Use
Massage into wet hair and scalp, working into a rich lather. Leave for 1–2 minutes so actives absorb, then rinse thoroughly. Follow with the In Shower Treatment for best results.
Ingredients
Paraben Free, Sulfate Free, Silicone Free
Strengthens the root
Biotin fortifies each follicle so new hair grows in stronger and breaks less.
Energizes the scalp
Caffeine and rosemary boost circulation to wake tired, resting follicles.
Rebalances the scalp
Capsulated prebiotics clear buildup so pores stay balanced and unclogged.
Reduces shedding
Visibly denser, fuller-looking hair in as little as two weeks of use.
Real reviews, real regrowth
My part looks noticeably fuller after about a month. The tingle lets you know it’s working.
Postpartum shedding was brutal. Three months in and the baby hairs along my hairline are coming back.
Doesn’t strip my color and my scalp finally stopped feeling itchy and flaky by week two.
I’ve tried every thickening shampoo out there. This is the first one where my stylist noticed the difference.
Subscribed after the first bottle. It’s part of my routine now — hair feels denser wash after wash.
How to use
Three simple steps to a healthier-looking scalp and fuller, stronger-feeling hair.
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Step 01
Wet & lather
Massage into wet hair and scalp, working into a rich lather to deeply cleanse.
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Step 02
Massage in
Work into the scalp with fingertips for a full minute to boost circulation at the root.
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Step 03
Absorb & rinse 1–2 min
Leave on 1–2 minutes so the prebiotic capsules treat the scalp, then rinse thoroughly and follow with the Conditioner.
Pairs well with
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