Dr. Groot Hair Thickening Conditioner — Biotin Korean Formula, Color-Safe, Reduces Breakage & Oil

Dr. Groot Hair Thickening Conditioner is a biotin-enriched Korean leave-in conditioning treatment designed to reduce breakage-related hair loss and boost the look and feel of thicker, fuller hair.

Formulated as a protein-rich cream with rosemary capsules and encapsulated prebiotics, this conditioner targets weakened strands and oily scalps while remaining free from parabens, silicones, sulfates and gluten. Clinical testing reported rapid reductions in breakage and sebum with measurable improvements in softness and scalp hydration, making it a daily option for people seeking visibly fuller hair without harsh ingredients. It's also dermatologically tested and color-safe.

How quickly will I notice less hair breakage?

Clinical results show meaningful change within the first two weeks for many users, with a substantial reduction in breakage-related hair loss reported. Individual results vary depending on hair condition and routine.

• Clinically observed reduction in breakage-related hair loss by 82.2% in 2 weeks*
• Visible improvement often reported after consistent, twice-weekly use
• Protein-based formula helps strengthen strands to resist snapping

What active ingredients help thicken and nourish hair?

The conditioner combines biotin and panthenol to support strand strength and body, along with niacinamide and caffeine to refresh the scalp environment. Salicylic acid gently exfoliates to remove excess sebum, while rosemary extract and encapsulated prebiotics help nourish and balance the scalp.

• Biotin and panthenol for thicker-looking, fortified strands
• Niacinamide and caffeine to boost scalp vitality and circulation
• Salicylic acid for gentle exfoliation and sebum control
• Encapsulated rosemary and prebiotics to support scalp balance

Can I use this on color-treated or sensitive scalps?

Yes — the formula is dermatologically tested and safe for color-treated hair. It avoids common irritants like sulfates, silicones, parabens and gluten, making it suitable for many sensitive scalps; perform a patch test if you are highly reactive.

• Dermatologically tested and labeled color-safe
• Free from parabens, silicones, sulfates and gluten
• Contains gentle, scalp-supporting actives rather than harsh detergents

How should I use the conditioner for best results?

Apply after shampooing to mid-lengths and ends, and gently work toward the scalp if your scalp tends to be oily; leave on for a few minutes before rinsing. Use regularly as part of a balanced hair routine to maintain improvements in softness, sebum control, and strand resilience.

• Use after shampoo; massage into hair for 1–3 minutes before rinsing
• Adjust frequency (twice weekly to every wash) based on oil level and hair type
• Best paired with complementary scalp care products for long-term results

Who is this for: Dr. Groot Hair Thickening Conditioner suits people noticing thinning or breakage who want a non-irritating, science-backed Korean hair-care option. It fits those seeking thicker-looking hair without silicones or sulfates, people with oily scalps who need sebum control, and anyone with color-treated hair looking for a strengthening, hydrating conditioner. If you are concerned about hair loss from medical causes, consult a healthcare professional; this product targets breakage and cosmetic thickening rather than treating underlying medical conditions.