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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Olaplex No.4 Bond Maintenance Shampoo versus MoroccanOil Perfect Defense .

Last updated on October 26, 2023. Published on March 16, 2023

Overview

What they are

These products are both reef safe . They have a total of 6 ingredients in common

Cool Features

They both contain Vitamin E

Suited For

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

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 need an update? Let us know.

Shampoo American Brand United States

Shampoo

Detergent or soap for cleansing the hair.

Heat Protectant

These products protect hair from heat damage. Heat damage can come from curling irons, straighteners, other heat-tools, and the sun.

Price

Shop

Buy No.4 Bond Maintenance Shampoo

Starts at $30.00
Shop

Buy Perfect Defense

Starts at $26.50

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

At a glance

Click on any of the items below to learn more

Notable Ingredients

AHA
Vitamin E
Hyaluronic Acid

Benefits

Hydrating (4)
Reduces Irritation
Skin Texture
Reduces Large Pores
Anti-Aging (2)
Dark Spots
Scar Healing (2)
Brightening (3)

Concerns

Drying
May Worsen Oily Skin
Irritating (2)
Rosacea (2)
Eczema

Notable Ingredients

Vitamin E

Benefits

Hydrating (2)
Reduces Irritation
Brightening (2)

Concerns

Drying
May Worsen Oily Skin
Irritating
Rosacea (2)
Eczema (3)
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Ingredients Compared

Ingredients that are highlighted in purple are present in both products.

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 • Argania Spinosa Kernel Oil • Rice 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 Side-by-side

Ingredients that are highlighted in purple are present in both products.

Learn more about what what Com. / Irr. ratings are

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Ingredients Explained

These ingredients are found in both products.

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

1
What it does: Skin Conditioning, Solvent
Community Rating: Loved

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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water

Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 1.

MoroccanOil Perfect Defense contains this as ingredient number 3.

2
What it does: Masking, Perfuming
Community Rating: Very Disliked

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

In the US, the alternative name for parfum is 'fragrance'. 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. One example is Calendula flower extract. Essential oil ingredients still impart a scent or 'fragrance'.

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

Products use parfum often to give products a scent or cover up smells of different ingredients.

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

Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 10.

MoroccanOil Perfect Defense contains this as ingredient number 12.

3
What it does: Humectant, Skin Conditioning, Skin Protecting, Solvent
Community Rating: Loved

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.

As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.

Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.

Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.

In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.

This ingredient is organic, colorless, odorless, and non-toxic.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Learn more about Glycerin

Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 31.

MoroccanOil Perfect Defense contains this as ingredient number 17.

4
What it does: Skin Conditioning
Community Rating: Loved

Panthenol (also referred to as pro-vitamin B5) is a common ingredient that helps hydrate and soothe the skin.

lt is a humectant, meaning that it helps the skin attract and retain moisture.

Another benefit is the anti-inflammatory abilities. This means that it's great for sensitive, irritation-prone skin.

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

Learn more about Panthenol

Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 33.

MoroccanOil Perfect Defense contains this as ingredient number 15.

5
What it does: Emollient, Skin Conditioning
Community Rating: Mixed

Argania Spinosa Kernel Oil is derived from the kernels of the argania spinosa tree. You may know it as argan oil.

Argan Oil is an antioxidant, hydrating, and soothing ingredient.

Studies have shown argan oil can help fight again radical damage from the sun. This makes it effective at preventing hyperpigmentation.

Large amounts of vitamin E found in argan oil helps the skin retain water. Argan oil also contains fatty acids such as linoleic acid, oleic acid, and palmitic acid. It is also a good source of lipids.

Another benefit of argan oil is skin-soothing. It can help reduce inflammation-related skin symptoms.

Argan Oil is effective at regulating sebum production in pores. This can make it effective at treating hormonal acne.

Traditionally, argan oil was used for its antibacterial and antifungal properties. However, argan oil contains fatty acids that may make it not fungal-acne safe.

Argan Trees are native to Morocco.

Learn more about Argania Spinosa Kernel Oil

Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 40.

MoroccanOil Perfect Defense contains this as ingredient number 6.

6
What it does: Antimicrobial, Masking, Skin Conditioning
Community Rating: Mixed

Rosmarinus Officinalis Leaf Extract comes from rosemary. Rosemary is native to the Mediterranean.

While Rosmarinus Officinalis Leaf Oil can be volatile due to its fragrant properties, this component is usually removed in the leaf extract.

Rosemary Leaf Extract can help protect your skin against damage from free-radical molecules. It contains many antioxidants such as rosmarinic acid and caffeic acid. Rosemarinic acid has been found to help soothe skin conditions such as eczema and acne.

Learn more about Rosmarinus Officinalis Leaf Extract

Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 49.

MoroccanOil Perfect Defense contains this as ingredient number 10.

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

25% are loved or liked
17% have mixed ratings
27% are disliked or very disliked
30% have no rating yet
26% are loved or liked
13% have mixed ratings
22% are disliked or very disliked
39% have no rating yet

Usage

Here's some more info on how this product is used by our community.

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Reviews

Here's what our community thinks

Olaplex No.4 Bond Maintenance Shampoo 63 ingredients

2.6 /5
from 5 ratings
Color Care (1)
BubbIes's avatar

BubbIes

2 months ago · Combination Skin
Review

You honestly shouldn’t be using this unless you have color treated hair, which is something I realized after using this for awhile. This is very...

You honestly shouldn’t be using this unless you have color treated hair, which is something I realized after using this for awhile. This is very heavy, I found that it weighed my hair down and made it look lifeless.

MoroccanOil Perfect Defense 23 ingredients

Perfect Defense hasn't been rated yet.
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