This 4-step regimen targets the root causes of stress-related hair thinning, which can be triggered by factors such as diet, illness, childbirth, and medication. Featuring a blend of plant-based botanical extracts, essential oils, and vitamins, the clinically-proven formulas are designed to optimize scalp health and encourage stronger, thicker-looking hair. This system helps preserve the scalp's natural balance and strengthen hair structure, leading to thicker, fuller, and healthier-looking hair with visible results in just one month. Kit Includes: Head Spa Complexe 5 Stimulating Plant Concentrate (1. 6 FL. OZ. ) Triphasic Thickening Shampoo (1. 6 FL. OZ. ) Triphasic Texturizing Conditioner (1. 0 Fl. OZ. ) Triphasic Reactional Concentrated Serum (12 VIALS x 0. 16 FL. OZ. ) | René Furterer Triphasic Reactional Thinning Hair Routine, 27 oz | Dermstore