Versus

Olaplex No.4 Bond Maintenance Shampoo Versus Amika Soulfood Nourishing Mask

Shampoo
Hair Mask
American Brand
American Brand

Overview

What they are

These products are both vegan, cruelty-free, and reef safe . They have a total of 8 ingredients in common

Cool Features

They both contain Vitamin E

Suited For

They're both likely to be good for dry skin, sensitive skin and scar healing

Free From

They both do not contain any parabens or sulfates

What's Inside

They both contain 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.

Ingredient Info

Click any item below to learn more and see relevant 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

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
No.4 Bond Maintenance Shampoo

Water

Skin Conditioning

Sodium Lauroyl Methyl Isethionate

Cleansing

Cocamidopropyl Hydroxysultaine

Cleansing

Potassium Cocoyl Glycinate

Disodium Cocoyl Glutamate

Cleansing

Potassium Cocoate

Emulsifying
Can worsen Dry Skin Icon

Sodium Lauroyl Sarcosinate

Cleansing

Glycereth-26

Humectant
0 / 0 Helps hydrate Dry Skin Icon

Decyl Glucoside

Cleansing

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Phenoxyethanol

Preservative
Preservative Icon

Cocamidopropylamine Oxide

Cleansing

Sodium Cocoyl Glutamate

Cleansing

Glycol Distearate

Emollient
Not safe for Fungal Acne Icon

Disodium Laureth Sulfosuccinate

Cleansing

Methyl Gluceth-20

Humectant
Helps hydrate Dry Skin Icon

Acrylates Copolymer

PEG-120 Methyl Glucose Dioleate

Emulsifying
0 / 0 Not safe for Fungal Acne Icon

Amodimethicone

Silicon Icon

Polyquaternium-10

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

Ethylhexylglycerin

Skin Conditioning

Sodium Lauryl Sulfoacetate

Cleansing

Divinyldimethicone/Dimethicone Copolymer

Chlorphenesin

Antimicrobial
Preservative Icon

Polyquaternium-11

Guar Hydroxypropyltrimonium Chloride

Skin Conditioning

C11-15 Pareth-7

Emulsifying

Trisodium Ethylenediamine Disuccinate

Laureth-9

Emulsifying

Glycerin

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

Trideceth-12

Emulsifying

Panthenol

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Hydrolyzed Vegetable Protein Pg-Propyl Silanetriol

Skin Conditioning

C12-13 Pareth-3

Emulsifying

C12-13 Pareth-23

Cleansing

Helianthus Annuus Seed Oil

Emollient
0 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Tocopherol

Antioxidant
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate

Humectant
Oil IconNot safe for Fungal Acne Icon

Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate

Skin Conditioning
Oil Icon

Prunus Armeniaca Kernel Oil

Masking
1-2 / 0 Oil IconNot safe for Fungal Acne Icon

Quaternium-95

UV Absorber

Propanediol

Solvent
Helps hydrate Dry Skin Icon

Helianthus Annuus Seed Extract

Skin Conditioning
Helps hydrate Dry Skin Icon

PEG-8

Humectant

Bis-Aminopropyl Diglycol Dimaleate

Skin Conditioning

Euterpe Oleracea Fruit Extract

Helps reduce irritation Icon

Rosmarinus Officinalis Leaf Extract

Antimicrobial

Punica Granatum Extract

Astringent

Origanum Vulgare Leaf Extract

Skin Conditioning

Musa Sapientum Fruit Extract

Skin Conditioning

Morinda Citrifolia Fruit Extract

Skin Conditioning

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid IconHelps hydrate Dry Skin Icon

PEG-8/Smdi Copolymer

Arctium Lappa Root Extract

Skin Conditioning
Helps reduce irritation Icon

Sodium Polyacrylate

Absorbent
Helps hydrate Dry Skin Icon

Palmitoyl Myristyl Serinate

Skin Conditioning

Citral

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Rosacea Icon

Hexyl Cinnamal

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Limonene

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

Biotin

Antiseborrhoeic

Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Antioxidant
Antioxidant Icon

Water, Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Potassium Cocoyl Glycinate, Disodium Cocoyl Glutamate, Potassium Cocoate, Sodium Lauroyl Sarcosinate, Glycereth-26, Decyl Glucoside, Parfum, Phenoxyethanol, Cocamidopropylamine Oxide, Sodium Cocoyl Glutamate, Glycol Distearate, Disodium Laureth Sulfosuccinate, Methyl Gluceth-20, Acrylates Copolymer, PEG-120 Methyl Glucose Dioleate, Amodimethicone, Polyquaternium-10, Citric Acid, Ethylhexylglycerin, Sodium Lauryl Sulfoacetate, Divinyldimethicone/Dimethicone Copolymer, Chlorphenesin, Polyquaternium-11, Guar Hydroxypropyltrimonium Chloride, C11-15 Pareth-7, Trisodium Ethylenediamine Disuccinate, Laureth-9, Glycerin, Trideceth-12, Panthenol, Hydrolyzed Vegetable Protein Pg-Propyl Silanetriol, C12-13 Pareth-3, C12-13 Pareth-23, Helianthus Annuus Seed Oil, Tocopherol, Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate, Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate, Prunus Armeniaca Kernel Oil, Quaternium-95, Propanediol, Helianthus Annuus Seed Extract, PEG-8, Bis-Aminopropyl Diglycol Dimaleate, Euterpe Oleracea Fruit Extract, Rosmarinus Officinalis Leaf Extract, Punica Granatum Extract, Origanum Vulgare Leaf Extract, Musa Sapientum Fruit Extract, Morinda Citrifolia Fruit Extract, Sodium Hyaluronate, PEG-8/Smdi Copolymer, Arctium Lappa Root Extract, Sodium Polyacrylate, Palmitoyl Myristyl Serinate, Citral, Hexyl Cinnamal, Limonene, Biotin, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Antimicrobial, Preservative

Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.

Chlorphenesin is a biocide. This means it is able to help fight the microorganisms on our skin. It is also able to fight odor-releasing bacteria.

Chlorphenesin is soluble in both water and glycerin.

Studies show Chlorphenesin is easily absorbed by our skin. You should speak with a skincare professional if you have concerns about using Chlorphenesin.

Learn more about Chlorphenesin
Buffering, Masking

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.

If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.

Read more about some other popular AHA's here:

Learn more about Citric Acid
Skin Conditioning

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.

Perfuming, Solvent

Limonene is a fragrance that adds scent and taste to a formulation.

It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".

Limonene acts as an antioxidant, meaning it helps neutralize free radicals.

When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.

The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.

Learn more about Limonene
Skin Conditioning

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

Learn more about Panthenol
Masking, Perfuming

Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.

Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.

For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.

The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.

One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.

Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Parfum can also be used to mask or cover an unpleasant scent.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

Learn more about Parfum
Preservative

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

Skin Conditioning, Solvent

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!

Learn more about Water

When to use

43 Routines
47% use in am
53% use in pm
65% use every day
When to use See routines that use it ->
20 Routines
30% use in am
70% use in pm
40% use every day

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