Nioxin System Kit 4 Trial Size | 3-Part Starter System for Progressed Thinning Colour-Treated Hair

Nioxin System Kit 4 Trial Size is a three-part starter system for colour-treated or damaged hair with progressed thinning. Combining a 150ml scalp and hair shampoo, 150ml conditioner and 40ml leave-in thickening treatment, this Nioxin trial kit introduces a coordinated routine for cleansing, conditioning and fuller-looking hair. If you're looking for a Nioxin starter kit for noticeably thinning colour-treated hair, System 4 lets you try all three steps before choosing full-size bottles. Free UK delivery on orders over £50.

Key Benefits

  • Designed for colour-treated or damaged hair with progressed thinning.
  • Matching shampoo, conditioner and leave-in scalp treatment in one starter set.
  • Cleanses away excess oil and everyday build-up from the scalp and hair.
  • Conditions processed hair for a softer feel and easier manageability.
  • Helps improve the appearance of body and fullness as part of a coordinated routine.
  • Smaller bottles provide a convenient introduction to Nioxin System 4.

Why You'll Love This Product

When colour-treated hair looks noticeably less full, choosing the right routine can feel complicated. This System 4 trial kit brings three matching steps together, so you can focus on a simple wash-day ritual rather than piecing together separate products. Cleanse, condition and finish with the leave-in thickening treatment, then decide whether the larger System 4 kit suits your ongoing routine.

When to Use

Choose this trial-size kit for colour-treated, chemically processed or damaged hair with more noticeable or progressed thinning. Follow the directions on each bottle as part of your regular routine. For colour-treated hair with light thinning, compare System Kit 3 Trial Size; for natural, untreated hair with progressed thinning, compare System Kit 2 Trial Size.

How to Use

  1. Apply System 4 shampoo to wet hair, work into a lather and rinse thoroughly.
  2. Apply System 4 conditioner according to the bottle directions, then rinse thoroughly.
  3. Apply System 4 Scalp Care + Hair Thickening Treatment as directed on its packaging. Gently distribute and leave in; do not rinse.

Your kit includes: Nioxin System 4 Scalp + Hair Shampoo 150ml, Scalp + Hair Conditioner 150ml and Scalp Care + Hair Thickening Treatment 40ml.

Ingredients

Please check the individual product packaging for the current full INCI ingredient lists. Each step has its own formula; ingredients may change.

  • £39.99