REDKEN Extreme Length Shampoo
Biolage Scalp Sync Clarifying Shampoo
Versus

REDKEN Extreme Length Shampoo Versus Biolage Scalp Sync Clarifying Shampoo

Shampoo
Shampoo
American Brand United States
American Brand United States

Updated on March 03, 2025

Overview

What they are

These products are both vegan, fungal acne (malassezia) safe, and reef safe shampoos. They have a total of 0 ingredients in common

Cool Features

They both contain AHA and BHA

Suited For

They're both likely to be good for fighting acne, dry skin, brightening skin, oily skin, reducing pores, scar healing and better texture

Free From

They both do not contain any oils, parabens or silicones

What's Inside

They both contain harsh alcohols, common allergens, fragrances and sulfates

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

REDKEN Extreme Length Shampoo 18 ingredients

Biolage Scalp Sync Clarifying Shampoo 27 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

REDKEN Extreme Length Shampoo 18 ingredients

Biolage Scalp Sync Clarifying Shampoo 27 ingredients

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Extreme Length Shampoo

Water

Skin Conditioning

Sodium Laureth Sulfate

Cleansing
Sulfate IconCan worsen Dry Skin Icon

Sodium Chloride

Masking
Can worsen Dry Skin IconBad for Acne Prone Skin IconMay worsen Rosacea Icon

Cocamidopropyl Betaine

Cleansing
May 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

Sodium Hydroxide

Buffering

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Propylene Glycol

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

Polyquaternium-10

Sodium Benzoate

Masking
Preservative Icon

Hexylene Glycol

Emulsifying
0-2 / 0-1

Salicylic Acid

Masking
BHA IconPreservative IconGood for Oily Skin IconGood for Minimizing Pores IconHelps fight Acne IconHelps brighten skin IconCan worsen Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Benzyl Benzoate

Antimicrobial
Fragrance IconMay cause irritation IconEU Allergen Icon

Limonene

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

Linalool

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

2-Oleamido-1,3-Octadecanediol

Skin Conditioning

Biotin

Antiseborrhoeic

Water, Sodium Laureth Sulfate, Sodium Chloride, Cocamidopropyl Betaine, Citric Acid, Sodium Hydroxide, Parfum, Propylene Glycol, Polyquaternium-10, Sodium Benzoate, Hexylene Glycol, Salicylic Acid, Benzyl Benzoate, Limonene, Benzyl Alcohol, Linalool, 2-Oleamido-1,3-Octadecanediol, Biotin

Scalp Sync Clarifying Shampoo

Water

Skin Conditioning

Sodium Laureth Sulfate

Cleansing
Sulfate IconCan worsen Dry Skin 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

Cocamidopropyl Betaine

Cleansing
May worsen Eczema IconMay worsen Rosacea Icon

Sodium Hydroxide

Buffering

Sodium Chloride

Masking
Can worsen Dry Skin IconBad for Acne Prone Skin IconMay worsen Rosacea Icon

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Sodium Benzoate

Masking
Preservative Icon

Glycine

Buffering
Helps hydrate Dry Skin Icon

Hexylene Glycol

Emulsifying
0-2 / 0-1

Glycolic Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin IconMay worsen Rosacea Icon

Propylene Glycol

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

Salicylic Acid

Masking
BHA IconPreservative IconGood for Oily Skin IconGood for Minimizing Pores IconHelps fight Acne IconHelps brighten skin IconCan worsen Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Menthol

Masking
May cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Polyquaternium-10

Limonene

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

Saccharomyces/Xylinum/Black Tea Ferment

Skin Conditioning
Helps reduce irritation Icon

Hexyl Cinnamal

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Coumarin

Perfuming
Fragrance IconMay cause irritation IconEU Allergen 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

Linalool

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

Glycerin

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

Amyl Cinnamal

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Sorbitol

Humectant
0 / 0 Helps hydrate Dry Skin 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

Potassium Sorbate

Preservative
Preservative Icon

Ascorbic Acid

Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon

Water, Sodium Laureth Sulfate, Citric Acid, Cocamidopropyl Betaine, Sodium Hydroxide, Sodium Chloride, Parfum, Sodium Benzoate, Glycine, Hexylene Glycol, Glycolic Acid, Propylene Glycol, Salicylic Acid, Menthol, Polyquaternium-10, Limonene, Saccharomyces/Xylinum/Black Tea Ferment, Hexyl Cinnamal, Coumarin, Benzyl Alcohol, Linalool, Glycerin, Amyl Cinnamal, Sorbitol, Camellia Sinensis Leaf Extract, Potassium Sorbate, Ascorbic Acid

Ingredient Ratings

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

Extreme Length Shampoo
10
10
10
liked
mixed
disliked
not rated
Unlock with Premium
Scalp Sync Clarifying Shampoo
10
10
10
liked
mixed
disliked
Unlock with Premium

When to use

REDKEN Extreme Length Shampoo 18 ingredients

Biolage Scalp Sync Clarifying Shampoo 27 ingredients

9 Routines
44% use in am
56% use in pm
44% use every day
4 Routines
50% use in am
50% use in pm
100% use every day

Reviews

Here's what our community thinks

REDKEN Extreme Length Shampoo 18 ingredients

No reviews yet

Be the first to review Extreme Length Shampoo

Write the first review

Biolage Scalp Sync Clarifying Shampoo 27 ingredients

5.00
Overall rating
5
4
3
2
1
Try our other tools
Ingredient Checker Icon
Ingredient Checker
Analyze the ingredients in any cosmetic product
Routine Creator Icon
Routine Creator
Design your step-by-step skincare routine
Compare Products Icon
Compare Products
Compare any two cosmetic products
Dupe Finder Icon
Skincare Dupes
Find dupes for any skincare product
Fungal Acne Checker Icon
Fungal Acne Checker
Check if a product contains fungal acne triggers
Ingredient Dictionary Icon
Ingredients Dictionary
Learn more about over 27,000 cosmetic ingredients

Track your products and build your routine with SkinSort.

Get started - it's free!