Dr. Groot Hair Thickening Shampoo — Biotin & Rosemary Oil for Thinning, Color-Safe Volumizing (250ml)

Dr. Groot Hair Thickening Shampoo is a Korean-formulated biotin and rosemary oil shampoo designed to cleanse the scalp and visibly make hair appear thicker and fuller.

If your hair looks limp, fine or shows signs of damage, starting with scalp-focused cleansing and lightweight nourishment can change how hair sits and reflects light. This shampoo combines biotin, rosemary oil, caffeine and encapsulated prebiotics in a sulfate- and silicone-free base to remove buildup, hydrate the scalp and add root lift without weighing hair down. Developed by scientists and tested on color-treated hair, the formula aims to support healthier-looking hair texture and fuller visual volume as part of a regular routine.

How will this shampoo affect my thin or damaged hair?

The formula targets surface buildup and dryness while delivering ingredients that help hair look denser at the root. Expect gentle exfoliation and a lightweight conditioning effect that helps strands separate and hold body instead of clumping flat.

• Biotin to support visibly fuller strand appearance
• Capsulated prebiotics to help balance scalp microbiome and remove residue
• Rosemary oil and caffeine to invigorate the scalp for improved texture
• Sulfate-, silicone- and paraben-free to reduce buildup and residue

How quickly will I notice changes in my scalp and hair?

Clinical testing reported measurable improvements in scalp moisture and reduced buildup within weeks when used consistently. Individual results vary, but many users report calmer, less flaky scalps and hair that appears more voluminous after regular use.

• Clinical measures showed increased scalp hydration in two weeks*
• Significant removal of surface buildup reported in testing
• Visible reduction of scalp redness from dryness in study participants

Is this safe for color-treated or sensitive scalps?

The shampoo is dermatologically tested and formulated without harsh sulfates, silicones, parabens or gluten, making it suitable for most color-treated hair. If you have a specific scalp condition or allergy, check ingredient details and consult a dermatologist before use.

• Dermatologically tested and rated safe for color-treated hair
• Free from sulfates and silicones to protect color and reduce stripping
• Gentle exfoliating action to clear buildup without over-drying

How do I use it for best results?

Use as your regular shampoo—wet hair thoroughly, massage into scalp focusing on roots, then rinse and repeat if needed. Pair with a lightweight conditioner or leave-in for added manageability, and use consistently for visible improvements in texture and volume.

• Apply to wet hair, massage into scalp for 60–90 seconds
• Rinse well and follow with a compatible conditioner
• Use regularly as part of a daily or every-other-day routine

Who is this for: Dr. Groot Hair Thickening Shampoo is designed for men and women with fine, thinning, dry or damaged hair who want fuller-looking strands without heavy conditioners or harsh detergents. It's a practical choice if you seek a science-backed, scalp-first approach to improve hair texture and manageability while keeping color treatments protected.

Note: Clinical observations referenced are from the brand’s testing protocols; individual outcomes depend on hair type, frequency of use and overall haircare routine.

Ingredients

Water/Eau, Disodium Laureth Sulfosuccinate, Disodium Lauryl Sulfosuccinate, Glycerin, Cocamidopropyl Betaine, Parfum/Fragrance, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Cocoyl Isethionate, Saccharomyces Cerevisiae Extract, Yeast Extract/Extrait De Levure, Beta-Glucan, Inulin, Maltodextrin, Bifida Ferment Lysate, Lactobacillus Ferment Lysate, Anthemis Nobilis Flower Water, Rosmarinus Officinalis (Rosemary) Extract, Biotin, Caffeine, Melissa Officinalis Flower/Leaf/Stem Water, Houttuynia Cordata Extract, Panax Ginseng Root Extract, Paeonia Suffruticosa Branch/Flower/Leaf Extract, Paeonia Suffruticosa Root Extract, Artemisia Annua Extract, Azadirachta Indica Leaf Extract, Camellia Sinensis Leaf Extract, Mentha Arvensis Leaf Extract, Centella Asiatica Leaf Extract, Hyaluronic Acid, Polygonum Multiflorum Root Extract, Panax Ginseng Leaf/Stem Extract, Arginine, Benzyl Alcohol, Aspartic Acid, Polylysine, Zingiber Officinale (Ginger) Root Extract, Ganoderma Lucidum (Mushroom) Extract, Pca, Serine, Glycine, Alanine, Althaea Officinalis Root Extract, Calendula Officinalis Flower Extract, Chamaecyparis Obtusa Leaf Extract, Phellinus Linteus Extract, Valine, Dehydroacetic Acid, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Sodium Pca, Alchemilla Vulgaris Extract, Vinegar/Vinaigre, Zea Mays (Corn) Starch, Dextrin, Peg-Crosspolymer, Caprylyl Glycol, Di-C12-13 Alkyl Malate, Polyquaternium-7, Microcrystalline Cellulose, Cocamide Mea, Coco-Glucoside, Glyceryl Oleate, Menthol, Panthenol, Salicylic Acid, Coconut Acid, Niacinamide, Ppg-3 Caprylyl Ether, Mannitol, Chromium Hydroxide Green(Ci 77289), Sodium Isethionate, Tetrasodium Edta, Methylpropanediol, Ethylhexylglycerin, Chlorophyllin-Copper Complex, Citric Acid, Potassium Hydroxide, Pentylene Glycol, Alcohol, Butylene Glycol, 1,2-Hexanediol, Sodium Lactate, Potassium Sorbate, Hexylene Glycol, Sodium Chloride, Sodium Benzoate.