Nioxin Diaboost Hair Thickening Serum
Nioxin System 2 Scalp & Hair Thickening Treatment
Versus

Nioxin Diaboost Hair Thickening Serum Versus Nioxin System 2 Scalp & Hair Thickening Treatment

Hair Loss
Leave-in Treatment
Canadian Brand Canada
Canadian Brand Canada

Updated on May 05, 2025

Overview

Cool Features

They both contain niacinamide

Suited For

They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots

Free From

They both do not contain any sulfates

What's Inside

They both contain harsh alcohols, common allergens, fragrances, oils and silicones

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.

New Comparison

Ingredient Info

Click any item below to learn more and see relevant ingredients

Nioxin Diaboost Hair Thickening Serum 19 ingredients

Nioxin System 2 Scalp & Hair Thickening Treatment 46 ingredients

What's inside (and what isn't)

What's inside (and what isn't)

At a glance

Click on any of the items below to learn more

Nioxin Diaboost Hair Thickening Serum 19 ingredients

Nioxin System 2 Scalp & Hair Thickening Treatment 46 ingredients

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Diaboost Hair Thickening Serum

Alcohol Denat.

Antimicrobial
Alcohol IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon

Water

Skin Conditioning

Niacinamide

Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin Icon

PEG/PPG-20/23 Dimethicone

Emulsion Stabilising
Silicon Icon

Caffeine

Skin Conditioning
Helps reduce irritation IconHelps with Anti-Aging Icon

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Emulsion Stabilising

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconHelps brighten skin Icon

Tetrahydroxypropyl Ethylenediamine

Mentha Arvensis Leaf Oil

Masking
Oil Icon

Mentha Piperita Oil

Masking
Fragrance IconOil IconMay cause irritation IconEU Allergen Icon

PEG-30 Dipolyhydroxystearate

Emulsifying
Not safe for Fungal Acne Icon

Benzyl Salicylate

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Hexyl Cinnamal

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Trideceth-6

Emulsifying

Alpha-Isomethyl Ionone

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Limonene

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Linalool

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Citronellol

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Alcohol Denat., Water, Niacinamide, PEG/PPG-20/23 Dimethicone, Caffeine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Parfum, Glycerin, Tetrahydroxypropyl Ethylenediamine, Mentha Arvensis Leaf Oil, Mentha Piperita Oil, PEG-30 Dipolyhydroxystearate, Benzyl Salicylate, Hexyl Cinnamal, Trideceth-6, Alpha-Isomethyl Ionone, Limonene, Linalool, Citronellol

System 2 Scalp & Hair Thickening Treatment

Water

Skin Conditioning

Niacinamide

Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin Icon

Phenylbenzimidazole Sulfonic Acid

UV Absorber
Chemical UV Filter Icon

Caffeine

Skin Conditioning
Helps reduce irritation IconHelps with Anti-Aging Icon

Polysorbate 20

Emulsifying
0 / 0 Not safe for Fungal Acne Icon

Benzophenone-4

UV Absorber
Chemical UV Filter Icon

Phenoxyethanol

Preservative
Preservative Icon

Sodium Benzoate

Masking
Preservative Icon

Benzyl Alcohol

Perfuming
Alcohol IconFragrance IconPreservative IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

PEG-12 Dimethicone

Skin Conditioning
Silicon Icon

Sodium Hydroxide

Buffering

Cocamidopropyl Betaine

Cleansing
May worsen Eczema IconMay worsen Rosacea Icon

Acetamide Mea

Humectant

Propylene Glycol

Humectant
0 / 0 Helps hydrate Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Tetrasodium EDTA

May worsen Eczema Icon

Methyl Nicotinate

Soothing

Mentha Arvensis Leaf Oil

Masking
Oil Icon

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Polysorbate 80

Emulsifying
0 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon

Polysorbate 60

Emulsifying
Not safe for Fungal Acne Icon

PEG-23m

Emulsion Stabilising

Mentha Piperita Oil

Masking
Fragrance IconOil IconMay cause irritation IconEU Allergen Icon

Limonene

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Camellia Sinensis Leaf Extract

Antimicrobial
Antioxidant IconHelps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging Icon

Cystine Bis-Pg-Propyl Silanetriol

Skin Conditioning

Tocopheryl Acetate

Antioxidant
0 / 0 Vitamin E IconAntioxidant Icon

Lecithin

Emollient
Helps hydrate Dry Skin Icon

Biotin

Antiseborrhoeic

Citrus Paradisi Peel Extract

Perfuming
Fragrance Icon

Humulus Lupulus Extract

Antimicrobial

Urtica Dioica Leaf Extract

Skin Conditioning

Silica

Abrasive
Exfoliant IconMay worsen Eczema IconMay worsen Rosacea Icon

Citric Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Vaccinium Myrtillus Leaf Extract

Astringent

Acer Saccharum Extract

Skin Conditioning

Citrus Limon Peel Extract

Emollient

Saccharum Officinarum Extract

Moisturising

Faex Extract

Skin Conditioning

Propylparaben

Preservative
0 / 0 Preservative IconParaben IconCan worsen Dry Skin IconNon-Reef-Safe Icon

Citrus Aurantium Dulcis Fruit Extract

Masking

Potassium Sorbate

Preservative
Preservative Icon

Maltodextrin

Absorbent
Helps hydrate Dry Skin Icon

Methylparaben

Preservative
0 / 0 Preservative IconParaben IconNon-Reef-Safe IconMay worsen Eczema Icon

Ethylparaben

Preservative
Preservative IconParaben IconNon-Reef-Safe Icon

Butylparaben

Masking
Preservative IconParaben IconCan worsen Dry Skin IconNon-Reef-Safe IconMay worsen Eczema Icon

BHT

Antioxidant
Antioxidant Icon

Water, Niacinamide, Phenylbenzimidazole Sulfonic Acid, Caffeine, Polysorbate 20, Benzophenone-4, Phenoxyethanol, Sodium Benzoate, Benzyl Alcohol, PEG-12 Dimethicone, Sodium Hydroxide, Cocamidopropyl Betaine, Acetamide Mea, Propylene Glycol, Tetrasodium EDTA, Methyl Nicotinate, Mentha Arvensis Leaf Oil, Parfum, Polysorbate 80, Polysorbate 60, PEG-23m, Mentha Piperita Oil, Limonene, Camellia Sinensis Leaf Extract, Cystine Bis-Pg-Propyl Silanetriol, Tocopheryl Acetate, Lecithin, Biotin, Citrus Paradisi Peel Extract, Humulus Lupulus Extract, Urtica Dioica Leaf Extract, Silica, Citric Acid, Vaccinium Myrtillus Leaf Extract, Acer Saccharum Extract, Citrus Limon Peel Extract, Saccharum Officinarum Extract, Faex Extract, Propylparaben, Citrus Aurantium Dulcis Fruit Extract, Potassium Sorbate, Maltodextrin, Methylparaben, Ethylparaben, Butylparaben, BHT

Ingredient Ratings

Here's what our community thinks of the ingredients in these products.

Diaboost Hair Thickening Serum
10
10
10
liked
disliked
not rated
Unlock with Premium
System 2 Scalp & Hair Thickening Treatment
10
10
10
liked
mixed
disliked
not rated
Unlock with Premium

When to use

Nioxin Diaboost Hair Thickening Serum 19 ingredients

Nioxin System 2 Scalp & Hair Thickening Treatment 46 ingredients

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