Here's our complete breakdown comparing the ingredients, attributes, and more of Olaplex No.4 Bond Maintenance Shampoo versus Monday Haircare Smooth Shampoo .
Published on December 12, 2023
Overview
What they are
These products are both vegan, cruelty-free, and reef safe shampoos. They have a total of 14 ingredients in common
Cool Features
They both contain AHA and Vitamin E
Suited For
They're both likely to be good for dry skin, brightening skin, reducing pores, scar healing and better texture
Free From
They both do not contain any parabens
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.
Price
Ingredient Info
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
Monday Haircare Smooth Shampoo 43 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
Contains Alcohol
Ingredients in this product that are types of alcohol:
Contains Silicon
Ingredients in this product that are types of silicon:
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Contains Sulfate
Ingredients in this product that are types of sulfate:
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
Monday Haircare Smooth Shampoo 43 ingredients
Notable Ingredients
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Benefits
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Concerns
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This product contains 2 ingredients that may have this attribute:
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Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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Concerns
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
Monday Haircare Smooth Shampoo 43 ingredients
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
Water • Disodium Laureth Sulfosuccinate • Sodium C14-16 Olefin Sulfonate • Cocamide Mea • Cocamidopropyl Betaine • Cocamidopropyl Hydroxysultaine • Glycerin • Peg-7 Glyceryl Cocoate • Butyrospermum Parkii Butter • Cocos Nucifera Oil • Tocopheryl Acetate • Citric Acid • Sodium Chloride • Decyl Glucoside • Sodium Methyl Lauroyl Taurate • Sodium Lauroyl Sarcosinate • Polyquaternium-7 • Guar Hydroxypropyltrimonium Chloride • Dimethicone • Sodium Benzoate • Peg-120 Methyl Glucose Dioleate • Bis-Aminopropyl Dimethicone • Glycol Distearate • Triisostearin • Sodium PCA • Propylene Glycol • Benzyl Alcohol • Ethylhexylglycerin • Phenoxyethanol • Tetradecene • Sodium Laurate • Sodium Sulfate • BHA • Sodium Methyltaurate • Disodium EDTA • Hexyl Cinnamal • Isolaureth-6 • Hexadecene • Sodium Sulfite • Sodium Citrate • Glycol Stearate • Linalool • Parfum
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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 WaterOlaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 1.
Monday Haircare Smooth Shampoo contains this as ingredient number 1.
Cocamidopropyl Hydroxysultaine is a synthetic cleansing agent, though it is derived from coconut oil.
It is used to enhance the texture of products by boosting lather and thickening the texture. As a cleanser, Cocamidopropyl Hydroxysultaine is mild.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 3.
Monday Haircare Smooth Shampoo contains this as ingredient number 6.
Sodium Lauroyl Sarcosinate is a cleansing agent and emulsifier. It is a surfactant derived from sarcosine, and a common source is coconut oil. As a surfactant, Sodium Lauroyl Sarcosinate helps lift dirts, oil, and other molecules to be washed away. In leave-on products, this ingredient is used as an emulsifier. Emulsifier help prevent ingredients such as oils and waters from separating.
Sodium Lauroyl Sarcosinate is also commonly found as a foaming agent in shampoo, toothpaste, and shaving foam. It is amphiphilic, meaning it loves both water and fats.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 7.
Monday Haircare Smooth Shampoo contains this as ingredient number 16.
Decyl Glucoside is a glucose-based surfactant. Surfactants help clean the skin by trapping oil, sebum, and dirt to be washed away.
It is created by reacting glucose with the fatty acids from plants.
Decyl Glucoside also helps stabilize the ingredients in a product by preventing them from separating.
This ingredient is biodegradable and non-toxic. This ingredient is commonly found in baby shampoos.
Decyl Glucoside is sometimes used to stabilize the UV filter Tinosorb.
Learn more about Decyl GlucosideOlaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 9.
Monday Haircare Smooth Shampoo contains this as ingredient number 14.
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 ParfumOlaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 10.
Monday Haircare Smooth Shampoo contains this as ingredient number 43.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 11.
Monday Haircare Smooth Shampoo contains this as ingredient number 29.
Glycol Distearate serves as a pearlizing or opacifying agent in cosmetic products.
It's often included in cleansers and haircare products to give them a lustrous or shimmering appearance.
It is derived from stearic acid, a natural fatty acid commonly found in vegetable oils and animal fats.
Glycol Distearate isn't fungal acne safe.
Learn more about Glycol DistearateOlaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 14.
Monday Haircare Smooth Shampoo contains this as ingredient number 23.
We don't have a description for Disodium Laureth Sulfosuccinate.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 15.
Monday Haircare Smooth Shampoo contains this as ingredient number 2.
Peg-120 Methyl Glucose Dioleate is used to improve texture and stability of a product. It is sugar based and helps thicken a product.
Once applied, it also creates a thin film to trap moisture in. This helps keep your skin hydrated.
This ingredient is the polyethylene glycol ether of the diester of oleic acid and methylglucose. The 120 represents an average of 120 moles of ethylene oxide.
There is limited research on this ingredient, although it is considered safe to use in skincare products.
Learn more about Peg-120 Methyl Glucose DioleateOlaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 18.
Monday Haircare Smooth Shampoo contains this as ingredient number 21.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
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.
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 look more even.
Read more about some other popular AHA's here:
Learn more about Citric AcidOlaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 21.
Monday Haircare Smooth Shampoo contains this as ingredient number 12.
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.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 22.
Monday Haircare Smooth Shampoo contains this as ingredient number 28.
This ingredient is derived from guar gum.
It is a conditioning ingredient, meaning it helps soften skin and hair.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 27.
Monday Haircare Smooth Shampoo contains this as ingredient number 18.
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 GlycerinOlaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 31.
Monday Haircare Smooth Shampoo contains this as ingredient number 7.
Hexyl Cinnamal is a fragrance ingredient with a similar scent to jasmine. It can be naturally found in chamomile essential oil.
This ingredient is a known EU allergen and may sensitize the skin. The EU requires this ingredient to be listed separately on an ingredients list.
Hexyl Cinnamal is not water soluble but is soluble in oils.
Learn more about Hexyl CinnamalOlaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 60.
Monday Haircare Smooth Shampoo contains this as ingredient number 36.
Here's what our community thinks of the ingredients in these two products.
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
Monday Haircare Smooth Shampoo 43 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
Monday Haircare Smooth Shampoo 43 ingredients
Reviews
Here's what our community thinks
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
BubbIes
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.
Monday Haircare Smooth Shampoo 43 ingredients
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