Unfortunately  gallon size  are discontinued

We will replace it with four one-liter bottles at no extra cost.

3.75 liter = 1.00 gallon

4.00 liter = 1.06 gallon

The Nioxin Scalp Therapy is a conditioner for thinning hair that provides superior moisture and energizes the scalp. It is the conditioner part of each Nioxin system. Nioxin Scalp Therapy System 1 is for fine, natural (non-chemically enhanced) hair in the early stages of thinning. Nioxin Scalp Therapy System 1 is made with European botanicals and rich humectants. Proteins, vitamins and amino acids relieve tightness, itching, flaking and tension in the scalp. The botanical conditioner for thinning hair promotes volume and the healthy growth of fuller hair. Nioxin Scalp Therapy System 1 moisturizes the scalp and hair without over-softening or weighing down the hair. BioAMP thickens the hair from inside the cuticle while Activ-Renewal brings back the youth in your scalp. Finally, using time-release technology, Transactive Delivery System continuously nourishes the hair and scalp.

Nioxin Scalp Therapy System 1 Benefits:
Volumizes and thickens hair
Intensely moisturizes and nourishes scalp
Soothes itching, flaking and tightness
Lightweight finish
Energizes scalp 


How to use 
After cleansing with Nioxin Cleanser System 1, apply Scalp Therapy Conditioner to wet hair. Leave on for 1-3 minutes. Rinse. Follow with Nioxin System 1 Scalp Treatment