Can you tell me what sizes are the shampoo and conditioning bottles?

Both shampoo and conditioner are 10.1 fl ounces. However, the Scalp treatment bottle is only 3.38 go ounces.

My hair is dry bleached and breaking… I need something to encourage new hair growth and help with the breakage

5 and 6 is what you need those system are used to add extra moisture to your hair due to you lighting your hair and also strong enough to help with the breakage and promote new hair growth

Seller or anyone who has used this, if I stop using your product, is my hair going to start falling out again?

This is a really great question and I completely understand your concern with this. I am happy to tell you that No, you will not have hair fall if you stop using our Nioxin Systems as these products do not have Minoxidil in them. We do have a Minoxidil product called Hair Regrowth which we have a specific system you can use with that. When you start to use a product with Minoxidil in it. That becomes a lifetime commitment as if you stop using a product with it in it you will have hair fall if you stop and loose all you gained from using the product. I hope this answered your question today. Have a Wonderful Nioxin Hair Day!

I read that scalp treatment should be used on dry hair, is this true? I don’t wash my hair every day.

Me either. I wash hair every 2-3 days. and use the scalp treatment on damp hair before hair dryer use. Went to web site to confirm: Should I use the hair/scalp treatment on dry or wet hair? Official Answer By Nioxin - Brand Engage Only use this on days you shampoo. Apply 2-4 pumps to a damp, but towel dries scalp.

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Nioxin System Kits | Scalp + Hair Thickening | 3 Month Supply

Nioxin System Kits | Scalp + Hair Thickening | 3 Month Supply

Product ID: 59281254

Details

Brand
NIOXIN
Hair Type
Thin
Item Form
Cream
Material Type Free
Gluten Free

⚡85% thicker hair in 30 days

🌿salicylic acid scalp cleanse

💧3-month supply hydration

¥22952

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Unlock thicker, fuller hair—because your scalp deserves the spotlight.

ADVANCED SCALP DETOX - Powerful salicylic acid formula clears follicle-clogging buildup for a fresh, healthy scalp environment.
AWARD WINNING EXPERTISE - Trusted by stylists for 16 years—join the community that swears by Nioxin’s scalp science.
COLOR SAFE HAIR RESILIENCE - Specifically designed for color-treated hair, strengthening strands while preserving vibrancy.
FULL 3 MONTH TRANSFORMATION KIT - Complete regimen with shampoo, conditioner, and treatment to ensure lasting density and fullness.
CLINICALLY PROVEN THICKNESS BOOST - 85% of users saw visibly thicker hair in just 30 days—don’t get left behind.

Nioxin System Kit 4 is a professional-grade, 3-month hair thickening treatment designed for color-treated hair with progressed thinning. Featuring salicylic acid to cleanse the scalp and a blend of botanicals and antioxidants, it promotes scalp health, reduces hair breakage, and delivers visibly denser, fuller hair in as little as 30 days. Clinically proven and stylist-recommended, this kit supports hair resilience while maintaining moisture balance and color vibrancy.

Specifications

ASIN	B0794F14V6
Active Ingredients	salicylic_acid
Best Sellers Rank	#4,081 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #32 in Hair Regrowth Treatments
Brand	NIOXIN
Brand Name	NIOXIN
Customer Reviews	4.4 out of 5 stars 8,638 Reviews
Hair Type	Thin
Item Form	Cream
Item Highlight	Hair with Light to Progressed Thinning \| Strengthen & Boost Hair Density with Niacinamide & Biotin \| 3 Month Supply
Item Weight	1.9 pounds
Manufacturer	Nioxin
Manufacturer Part Number	99240009134
Material Type Free	Gluten Free
Model Number	99240009134
Number of Items	1
Product Benefits	Formulated with a powerful blend of ingredients to help nourish the hair root and strengthen the hair. Product Benefits Formulated with a powerful blend of ingredients to help nourish the hair root and strengthen the hair. See more
Scent	Unscented
Scent Name	Unscented
Special Ingredients	salicylic acid
Unit Count	23.6 Fluid Ounces

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