How do I know which System Kit is right for me?

For natural, untreated hair with light thinning, we recommend System Kit 1. For natural, untreated hair with progressed thinning, we recommend System Kit 2. For damaged, dry, or colored treated hair with light thinning, we recommend System Kit 3. For damaged, dry, or color treated hair with progressed thinning, we recommend System Kit 4.

How do I know which kit to use if I previously used System Kit 5 or 6?

We recently transitioned from 6 kits to 4 to make it even easier to navigate which kit will help you meet your hair goals. If you previously used System Kit 5, we recommend using System Kit 3. If you recently used System Kit 6, we recommend using System Kit 4.

How often should I use the 3-step system to see results?

We recommend using the complete system at least 3 times a week for visible results in 30 days.

Can I use the Nioxin System 3 leave-in treatment every day?

For optimal results, use the Nioxin System 3 Leave-In Treatment daily for visible results in 30 days

What are signs of light thinning?

Light thinning can show up in subtle ways. You may notice more hair in your brush or shower, your hair may feel less full than it used to, your ponytail may seem smaller, or you may be seeing early signs of reduced hair density.

How is thinning different from hair fall?

Hair fall refers to the shedding of individual hair strands, which can be a normal part of the hair growth cycle. Hair thinning refers to a gradual reduction in hair density, which can make hair feel less full over time. Signs of thinning may include a smaller ponytail, less volume, or reduced hair density.

What products should I use with Nioxin System 3 Leave In Treatment?

For optimal results, use Nioxin System 3 Leave-In Treatment alongside the System 3 Scalp + Hair Shampoo and Conditioner.

What's the difference between Nioxin System 1 and System 3?

Both are designed for light thinning, but they address different hair needs. System 1 is recommended for natural, untreated hair, while System 3 is recommended for dry, damaged, or color-treated hair.

System 3 Leave In Treatment 100 mL

Q: Can I use System 3 on color-treated hair?

Yes. System 3 is designed for dry, damaged, or color-treated hair with light thinning.

DAILY LEAVE-IN SCALP TREATMENT FOR DRY, DAMAGED OR COLOR-TREATED HAIR WITH LIGHT THINNING | REGULAR STRENGTH

Current price $27.00

Nioxin System 3 Scalp + Hair Thickening Treatment is a leave-in treatment for dry, damaged, or color-treated hair with light thinning. Applied to towel-dried hair with a focus on the scalp and areas of concern, the treatment helps nourish and revitalize the scalp while helping hair appear thicker and fuller.

For optimal results, use alongside Nioxin System 3 Scalp + Hair Shampoo and Conditioner.

More Conditioning for Dry, Damaged or Color-Treated Hair with Light Thinning

Nioxin System 3 Scalp + Hair Thickening Treatment is designed for dry, damaged, or color-treated hair with light thinning. Applied to towel-dried hair with a focus on the scalp and areas of concern, this leave-in treatment helps nourish and revitalize the scalp while enhancing the appearance of thicker, fuller-looking hair.

The treatment helps:

Nourish and revitalize the scalp

Enhance the appearance of hair thickness and fullness

Support the needs of dry, damaged or color-treated hair

Leave hair looking fuller and thicker

For optimal results, use alongside Nioxin System 3 Scalp + Hair Shampoo and Conditioner.

System 3 may be right for you if:

You have dry, damaged, or color-treated hair

You're noticing early signs of thinning or reduced fullness

Your hair feels less full than it used to

Your ponytail appears smaller

You're starting to notice reduced hair density

You want thicker-, fuller-looking hair while addressing the needs of dry, damaged or color-treated hair

Not sure? Take our Scalp & Hair Consultation

Featured Ingredients

Niacinamide

A form of vitamin B3, that helps to increase the diameter of each hair strand and improve the scalp skin barrier function

Caffeine

Known to help stimulate hair follicles, maintain the skin barrier, and with massage improves blood microcirculation

Mentha Arvensis Leaf Oil

Also known as wild mint oil, this oil is known for its refreshing and invigorating benefits that stimulate the scalp and promote circulation

Full Ingredients List:

Aqua/Water/Eau, Niacinamide, Caffeine, Phenoxyethanol, Sodium Benzoate, Benzyl Alcohol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polysorbate 80,

Polysorbate 60, Acetamide MEA, Triethanolamine, PEG-23M, Tetrasodium EDTA, Propylene Glycol, Methyl Nicotinate, Parfum/Fragrance, Mentha Arvensis

Leaf Oil, Mentha Piperita (Peppermint) Oil, PEG-30 Dipolyhydroxystearate, Trideceth-6, Limonene, Camellia Sinensis Leaf Extract, Silica, Cystine Bis-PG-Propyl

Silanetriol, Biotin, Tocopheryl Acetate, Lecithin, Foeniculum Vulgare (Fennel) Fruit Extract, Acer Saccharum (Sugar Maple) Extract, Citrus Limon (Lemon) Peel

Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Vaccinium Myrtillus Leaf Extract, Faex Extract/Yeast Extract/Extrait de levure,

Propylparaben, Citrus Aurantium Dulcis (Orange) Fruit Extract, BHT, Maltodextrin, Methylparaben, Potassium Sorbate, Ethylparaben, Butylparaben.

HOW TO USE

Apply Nioxin System 3 Scalp + Hair Thickening Treatment to towel-dried hair, focusing on the scalp and areas of concern.
Massage gently to ensure even distribution.
Do not rinse out. Style as desired.
For optimal results, use alongside Nioxin System 3 Scalp + Hair Shampoo and Conditioner.

LEAVE-IN CARE FOR DRY, DAMAGED OR COLOR-TREATED HAIR

Designed for dry, damaged or color-treated hair with light thinning

SCALP CARE & FULLER LOOKING HAIR

Helps nourish and revitalize the scalp while enhancing the appearance of thicker, fuller looking hair.

VISIBLE RESULTS IN AS LITTLE AS 30 DAYS*

Visible results when used as part of the complete System 3 regimen.*

SYSTEM KIT 1

For natural, untreated hair with light thinning. Best for those beginning to notice less fullness and volume.

SYSTEM KIT 2

For natural, untreated hair with progressed thinning. Best for more noticeable changes in fullness and scalp visibility.

SYSTEM KIT 3

For dry, damaged, or color-treated hair with light thinning. Best for hair experiencing reduced fullness and volume.

SYSTEM KIT 4

For dry, damaged, or color-treated hair with progressed thinning. Best for more noticeable changes in fullness and scalp visibility.

WHY SCALP CARE MATTERS FOR THINNING HAIR

Healthy-looking hair starts with the scalp. Over time, buildup, excess sebum, and environmental stressors can impact the scalp environment.

Scalp-focused care helps create the foundation for thicker-, fuller-looking hair. Nioxin's scalp-first approach is designed to support the scalp while helping hair appear denser and more voluminous.

Learn more about the importance of scalp care HERE.

WHY SCALP CARE MATTERS FOR THINNING HAIR

Ingredients

CAFFEINE

Supports hair follicles, improves blood circulation and maintains the skin barrier

MENTHA ARVENSIS LEAF OIL

Also known as wild mint oil, this oil is known for its refreshing and invigorating benefits that stimulate the scalp and promote circulation

NIACINAMIDE

A form of Vitamin B3, niacinamide helps nourish the hair root and can have a positive impact on hair growth and overall scalp health

COMPLETE YOUR THICKENING ROUTINE

System Kit 3 Full Size Kit
BESTSELLER
System Kit 3 Full Size Kit
3-STEP THICKENING SYSTEM | LIGHT THINNING REGULAR STRENGTH FOR DRY, DAMAGED OR COLOR-TREATED HAIR
System 3 Shampoo 300 mL
System 3 Shampoo 300 mL
FOR DRY, DAMAGED OR COLOR-TREATED HAIR WITH LIGHT THINNING | REGULAR STRENGTH
System 3 Conditioner 300 mL
System 3 Conditioner 300 mL
SCALP + HAIR CONDITIONER FOR DRY, DAMAGED OR COLOR-TREATED HAIR WITH LIGHT THINNING | REGULAR STRENGTH
System 3 Leave In Treatment 200 mL
System 3 Leave In Treatment 200 mL
DAILY LEAVE-IN SCALP TREATMENT FOR DRY, DAMAGED OR COLOR-TREATED HAIR WITH LIGHT THINNING | REGULAR STRENGTH