• Nioxin System 4 Kit for Colored Hair with Progressed Thinning - DermStreet
  • Nioxin System 4 Kit for Colored Hair with Progressed Thinning - DermStreet
Best Deal

Nioxin System 4 Kit for Colored Hair with Progressed Thinning

Kits & Bundles
Regular price $38
30% OFF with code PREFALL30 View Details
EARN +380 POINTS WHEN PURCHASING THIS PRODUCT
Product Benefits
  • Delivers advanced care for hair with progressed thinning, helping to create the appearance of denser, fuller hair over time
  • Gently cleanses and conditions without stripping color, preserving vibrancy and extending the life of color-treated hair
  • Improves hair strength from root to tip, reducing breakage and supporting more resilient strands
Expert Review
Removes environmental residue, product buildup, and excess sebum to create a refreshed, balanced scalp
Size

Checkout With Your HSA/FSA

Maximize your pre-tax HSA/FSA dollars.

  1. Select "Pay another way" or checkout as a guest.

    The checkout payment step, with a cursor clicking 'Pay another way' below a saved card.

  2. Select the "Flex - Pay with HSA/FSA" option.

    The checkout payment options, with 'Flex | Pay with HSA/FSA' selected below the credit card option.

  3. Enter your HSA/FSA card details.

    The Flex HSA/FSA payment form, with card number, expiration, security code, country and ZIP code fields.
Powered by TermsPrivacy

Flex is available for eligible customers. HSA/FSA savings vary based on individual circumstances. Learn more at withflex.com/legal.

In stock & ships same day! *

Free Shipping for US Orders

Free Returns No questions Asked

Earn rewards with our Loyalty Program

Authenticity Guaranteed
All products at DermStreet are authentic guaranteed. Trusted by thousands, we’ve earned over 1,600+ 5 star reviews.

Nioxin System 4 Kit is a complete 3-step hair care regimen formulated for color-treated hair with noticeable or progressed thinning. This professional-strength system includes a Thickening Shampoo, Scalp Therapy Conditioner, and a Leave-On Scalp & Hair Treatment that work together to remove buildup, deliver lightweight moisture, and strengthen thinning hair without stripping color. Designed to support visibly denser, fuller hair, System 4 helps reduce breakage, improve hair texture, and refresh the scalp while preserving the vibrancy of chemically-treated strands. Ideal for daily use, it offers a targeted solution for those experiencing more advanced hair thinning while maintaining color longevity and scalp health.

Shop Nioxin

Shop Nioxin
  • 5 stars: 24 (80%)
  • 4 stars: 3 (10%)
  • 3 stars: 3 (10%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Angie

I started with the trial kit, and my colored hair already feels cleaner and stronger after just a few uses.

A
Amari

I noticed within a few weeks that my hair looked shinier and felt stronger when I brushed it.

A
Anne

The shampoo and conditioner leave my hair soft, and the leave-in treatment gives my scalp a cool, fresh feeling.

K
Kirsten

The combination of shampoo, conditioner, and leave-in works best when used consistently, I see a clear improvement in strength and fullness.

A
Aniyah

My hair feels thicker at the roots, and I’ve noticed less shedding in the shower.

Y
Yamilet

My highlights still look bright, and this system hasn’t faded my color at all.

K
Karla

I like the minty scent and how the leave-in adds volume without making my hair greasy.

P
Pamela

I use the full-size bottles now, they last a long time and really help keep my scalp balanced.

D
Debbie

My stylist recommended System 4, and I can already see small baby hairs growing around my hairline.

F
Francesca

The shampoo cleans deeply, the conditioner hydrates, and the treatment helps my scalp feel healthy.

V
Victoria

It’s gentle on my color-treated hair but still makes my scalp feel refreshed and clean.

V
Valentina

The trial kit was a great way to test it, enough product to see real improvement before buying the full size.

M
Monique

Even though I dye my hair every few months, this system keeps it soft and full instead of dry or brittle.

J
Josephine

The conditioner detangles my color-treated hair without weighing it down.

J
Jessie

I was nervous about trying something for thinning hair, but this doesn’t irritate or strip my scalp.

M
Macie

I use all three steps together, and it’s made a real difference in both texture and fullness.

T
Tiffany

I’ve been using System 4 for about a month, and my hairline already looks a little denser.

D
Destiney

My hair feels smoother and has more body, which makes styling easier.

C
Carlie

My scalp used to get oily fast, but this keeps it balanced and clean all day.

J
Jayda

My scalp feels cool and tingly after the leave-in, which makes my hair feel thicker and more awake.

A
Andi

The shampoo lathers nicely, and the conditioner feels silky, my hair looks healthier overall.

G
Gabi

I started with the trial kit on vacation and loved it so much that I ordered the full-size when I got home.

E
Erin

I’m in my 50s and my hair had started thinning; this has helped it look thicker and feel stronger.

Z
Zariah

My color lasts longer now, and my hair feels lighter and more manageable.

V
Violet

It’s nice to find a product that supports both color care and thinning hair concerns.

K
Kamora

The cooling sensation from the treatment makes my scalp feel revitalized.

C
Cloe

This system truly revived my color-treated hair; it looks healthier, thicker, and more vibrant than it has in years.

A
Aurora

My scalp feels calm and refreshed after every wash, and the leave-in adds a nice boost of volume.

K
Kimberly

After six weeks of using the full kit, I’ve noticed new growth and less breakage.

M
Makenzie

My hair feels denser and looks shinier without losing its color vibrancy.

Shop by Category
Skin care is a personal journey and we're here to guide you along the way. Live chat our skin care experts for more help.

Serums & Treatments
Moisturizers
Cleansers
Sunscreens
Eye Care
Toners

Get In Touch
How Can We Help?
Have questions, concerns, or need help choosing a product? Our skincare experts are here for you.

Kits & Bundles

Shop Kits & Bundles