Thick as Thieves Hair Tonic

Strengthen. Stimulate. Soothe.

Part of our powerful Thick as Thieves hair growth line, this herbal tonic is a lightweight, leave-in formula designed to invigorate the scalp and support stronger, fuller-looking hair. Reawaken your roots and boost overall hair vitality without buildup or stickiness.

Infused with a concentrated extract of nettle, chamomile, ginger, rosemary, and lavender —this tonic delivers plant-powered support directly to the roots.

Boosted with:

Hydrolyzed keratin & wheat proteins to fortify hair and reduce breakage

Biotin and panthenol for softness, shine, and resilience

Lactic acid to help balance scalp pH

Rosemary extract & essential oil to stimulate follicles and energize your roots

Spray on dry or damp scalp daily. No rinse required.

Pairs perfectly with our Thick as Thieves Shampoo Bar for a complete hair-strengthening ritual.

Alcohol-free. Silicone-free. 

Full Ingredient List:  Aqua (Water), Urtica Dioica (Nettle) Leaf Extract, Matricaria Recutita (Chamomile) Flower Extract, Zingiber Officinale (Ginger) Root Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Lavandula Angustifolia (Lavender) Flower Extract,  Glycerin, Propanediol, Hydroxypropyltrimonium Honey, Caprylyl/Capryl Glucoside, Hydrolyzed Keratin, Hydrolyzed Wheat Protein, Panthenol, Biotin, Lactic Acid, Rosmarinus Officinalis (Rosemary) Leaf Oil, Sodium Hydroxide, Diazolidinyl Urea, Iodopropynyl Butylcarbamate