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Augustinus Bader
The Leave-In Treatment
Healthy hair, without the extra effort.
Augustinus Bader The Leave-In Hair Treatment is a lightweight, leave-in formula designed to hydrate, strengthen, and improve the overall look and feel of hair—without weighing it down. Powered by the brand’s signature TFC8® Technology alongside nourishing oils, proteins, and botanical extracts, it supports healthier-looking hair while enhancing softness, manageability, and shine. Ideal for daily use, this treatment works across hair types to simplify routines and elevate hair quality over time.
TFC8® Technology is Augustinus Bader’s patented complex of amino acids, vitamins, and peptides that guides key nutrients to skin cells, supporting renewal from within. Backed by over 30 years of research, it’s the powerhouse behind the brand’s transformative results—helping visibly improve tone, texture, and resilience.
In stock
- Provides lightweight hydration without heaviness
- Helps strengthen hair and reduce the appearance of damage
- Smooths frizz and improves manageability
- Enhances softness and natural shine
- Supports healthier-looking hair with continued use
- Suitable for daily use on damp or dry hair
Clinically Proven Results*
HYDRATION & SHINE
- The Leave-In Hair Treatment increased hair hydration by 115%
- The Leave-In Hair Treatment increased hair shine by 330%
- The Leave-In Hair Treatment increased hair smoothness by 185%
- The Leave-In Hair Treatment decreased hair follicle clog by 100%
FULLNESS & STRENGTH
- The Leave-In Hair Treatment increased hair strength by 182%
- The Leave-In Hair Treatment increased hair count by 31%
- The Leave-In Hair Treatment reduced broken and damaged hair from brushing by 93%
- The Leave-In Hair Treatment increased hair strand thickness by 138%
Nourish, smooth, and go.
Apply a small amount to towel-dried or dry hair, focusing on mid-lengths and ends. Distribute evenly and style as usual. Do not rinse.
No pregnancy or child safety concerns are specified by the brand. Consult a healthcare professional if you have questions during pregnancy or nursing.
- TFC8® Technology – A patented complex of amino acids, vitamins, and peptides that supports optimal hair and scalp function
- Coconut & Castor Oils – Help nourish hair while improving softness and shine
- Panthenol (Pro-Vitamin B5) – Supports hydration and smoother-looking hair
- Hydrolyzed Rice & Vegetable Proteins – Help reinforce strength and resilience
Aqua/Water/Eau, Glycerin, Cocos Nucifera (Coconut) Oil, Ricinus Communis (Castor) Seed Oil, Behenyl Alcohol, Sodium Acrylates Copolymer, Citric Acid, Maltodextrin, Xanthan Gum, Argania Spinosa Kernel Oil, Panthenol, Avena Sativa (Oat) Kernel Oil, Hydrolyzed Vegetable Protein, Potassium Sorbate, Saccharide Isomerate, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Lecithin, Sodium Benzoate, Hydrolyzed Rice Protein, Sodium Phytate, Acacia Concinna Fruit Extract, Melia Azadirachta Leaf Extract, Tocopherol, Helianthus Annuus (Sunflower) Seed Oil, Sodium Hydroxide, Nephelium Lappaceum Seed Extract, Caesalpinia Spinosa Fruit Pod Extract, Biotin, Camellia Sinensis Leaf Extract, Hydrogenated Lecithin, Tocopheryl Acetate, Helianthus Annuus (Sunflower) Sprout Extract, Sodium Citrate, Alanyl Glutamine, Arginine, Oligopeptide-177, Sodium Chloride, Sorbic Acid, Phenylalanine, Sisymbrium Irio Seed Oil, Bambusa Arundinacea Stem Extract, Hippophae Rhamnoides Fruit Extract
Augustinus Bader formulates products using rigorous clean formulation practices focused on ingredient quality, safety, and performance. The brand prioritizes thoughtful sourcing, formulation integrity, and compatibility with skin and hair. While specific third-party testing certifications are not publicly disclosed, products are developed to meet high standards of safety, stability, and ingredient transparency.