Nioxin Scalp + Hair System 2 Leave on Treatment 100ml

Why you'll love it

• Leave-on scalp and hair thickening treatment for natural hair with progressed thinning
• Nourishes and strengthens each strand from root to tip
• Promotes the appearance of thicker, fuller, denser hair
• Nourishing botanicals, antioxidants and UV-protecting ingredients for the scalp
• Clinically and dermatologically tested, with visible results in 30 days*

The leave-on step that does the heavy lifting. Nioxin Scalp + Hair System 2 Leave-On Treatment 100ml is a leave-in thickening treatment, the serum step of the System 2 routine, designed for natural, untreated hair with progressed thinning. Clinically and dermatologically tested, it nourishes and strengthens each strand from root to tip for the appearance of thicker, fuller, denser hair, while nourishing the scalp with botanicals, antioxidants and UV-protecting ingredients.

As a leave-on treatment, it stays in the hair to keep working between washes, nourishing and strengthening each strand to help minimise breakage, which in turn helps hair look fuller and denser (because less breaks off). It supports a healthier scalp environment too, with nourishing botanicals and antioxidants, and the UV-protecting ingredients help shield the scalp and hair. It's the targeted treatment step that makes the System 2 routine complete, and it can be bought on its own to top up or replace the treatment from your System 2 kit.

What it does for thinning, natural hair

Natural, untreated hair with progressed thinning benefits from a leave-on treatment that keeps working all day. This serum nourishes and strengthens each strand from root to tip to reduce breakage and promote the appearance of fuller, thicker, denser hair, while the nourishing, antioxidant and UV-protecting ingredients look after the scalp. Used consistently as part of the System 2 routine, it's designed to deliver visibly thicker, fuller-looking hair over time.

How to use it

Apply the leave-on treatment to a clean, towel-dried scalp and hair, distributing evenly, and do not rinse out. Use as the treatment step of your System 2 routine, after cleansing and conditioning, for consistent, leave-in results, the studies are based on 30 days of regular use. You'll find the rest of the System 2 range in our professional shampoo collection.

Who it's for

This treatment is specifically for natural, untreated hair with progressed thinning, the System 2 category. If your thinning is lighter, the System 1 treatment is the better-matched natural-hair option, and if your hair is colour-treated, Systems 3 and 4 are tailored to you. We've spent years helping clients in Codsall make the most of fine and thinning hair, and a leave-on treatment like this is one of the most targeted ways to support fuller, thicker-looking hair between salon visits.

Build your thickening routine

For the best results, use this treatment as the leave-on step alongside the matching System 2 cleanser and conditioner, and the wider Nioxin range. Have a browse through our full range of professional haircare products to complete your routine, or explore all the professional names we stock over on our shop by brand page.

Add the Nioxin Scalp + Hair System 2 Leave-On Treatment to your routine for visibly thicker, fuller-looking, denser hair. Free UK delivery on all orders.

*Based on consumer studies: 85% of consumers noticed a thickening effect, 80% noticed an increase in hair density, and 80% noticed an increase in hair fullness. Individual results may vary.