Here's our complete breakdown comparing the ingredients, attributes, and more of Kirkland Signature Moisture Shampoo versus Olaplex No.4 Bond Maintenance Shampoo .
Last updated on January 18, 2024. Published on February 05, 2024
Overview
What they are
These products are both vegan and reef safe shampoos. They have a total of 36 ingredients in common
Cool Features
They both contain AHA and Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain 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
Kirkland Signature Moisture Shampoo 72 ingredients
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
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:
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 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Vegan
This product is vegan 🎉
Not Cruelty Free
This product is not cruelty-free 😥
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 🎉
At a glance
Click on any of the items below to learn more
Kirkland Signature Moisture Shampoo 72 ingredients
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
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Concerns
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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:
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Benefits
This product contains 4 ingredients 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.
Kirkland Signature Moisture Shampoo 72 ingredients
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
Water • Sodium Cocoyl Isethionate • Cocamidopropyl Hydroxysultaine • Potassium Cocoyl Glycinate • Disodium Cocoyl Glutamate • Sodium Lauroyl Methyl Isethionate • Sodium Lauroyl Sarcosinate • Decyl Glucoside • Potassium Cocoate • Glycereth-26 • Glycol Distearate • Cocamidopropylamine Oxide • Phenoxyethanol • Parfum • Sodium Cocoyl Glutamate • Peg-120 Methyl Glucose Dioleate • Methyl Gluceth-20 • Quaternium-91 • Amodimethicone • Acrylates Copolymer • Citric Acid • Dicaprylyl Ether • Polyquaternium-10 • Guar Hydroxypropyltrimonium Chloride • Chlorphenesin • Trisodium Ethylenediamine Disuccinate • Ppg-3 Benzyl Ether Myristate • Glyceryl Oleate • C11-15 Pareth-7 • Polyquaternium-39 • Laureth-9 • Phospholipids • Glycerin • Hydrolyzed Vegetable Protein Pg-Propyl Silanetriol • Polyquaternium-55 • Sodium Benzoate • Panthenol • Trideceth-12 • Glycine Soja Oil • Acetic Acid • Tetrasodium EDTA • Benzoic Acid • Sodium Hydroxide • Disodium EDTA • Potassium Sorbate • Hydrolyzed Pea Protein Pg-Propyl Silanetriol • Caprylyl Glycol • Tocopheryl Acetate • Helianthus Annuus Seed Oil • Alcohol • Tocopherol • Argania Spinosa Kernel Oil • Ascorbic Acid • Persea Gratissima Oil • Copaifera Officinalis Resin • Passiflora Edulis Seed Oil • Isomalt • Euterpe Oleracea Fruit Oil • Aloe Barbadensis Leaf Extract • Cucumis Sativus Fruit Extract • Lycium Barbarum Fruit Extract • Punica Granatum Extract • Malus Domestica Fruit Cell Culture Extract • Quaternium-95 • Propanediol • Camellia Sinensis Leaf Extract • Persea Gratissima Fruit Extract • Xanthan Gum • Lecithin • Vitis Vinifera Fruit Cell Extract • Vitis Vinifera Seed Extract • Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
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
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 WaterKirkland Signature Moisture Shampoo contains this as ingredient number 1.
Olaplex No.4 Bond Maintenance 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.
Kirkland Signature Moisture Shampoo contains this as ingredient number 3.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 3.
Potassium Cocoyl Glycinate is an amino acid-based surfactant and cleaning agent. This ingredient can be derived from animals or plants. It may also be synthetically created from fatty acids of the coconut and glycine.
Potassium Cocoyl Glycinate is a gentle surfactant. Surfactants help gather the dirt, oil, and other pollutants from your skin to be rinsed away. It is a mild cleanser and naturally produces foam.
Kirkland Signature Moisture Shampoo contains this as ingredient number 4.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 4.
We don't have a description for Disodium Cocoyl Glutamate.
Kirkland Signature Moisture Shampoo contains this as ingredient number 5.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 5.
Sodium Lauroyl Methyl Isethionate is a cleansing ingredient. It is a surfactant, meaning it helps gather dirt, oil, and other pollutants. This helps them be rinsed away easily.
Kirkland Signature Moisture Shampoo contains this as ingredient number 6.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 2.
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.
Kirkland Signature Moisture Shampoo contains this as ingredient number 7.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 7.
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 GlucosideKirkland Signature Moisture Shampoo contains this as ingredient number 8.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 9.
This ingredient is the potassium salt of coconut acid. Coconut acid is created by mixing fatty acids from coconut oil.
It is an emulsifier, surfactant, and cleanser. According to a manufacturer, it contains glycerin.
Kirkland Signature Moisture Shampoo contains this as ingredient number 9.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 6.
Glycereth-26 is a synthetic ingredient and polyethylene glycol ether of Glycerin. Glycerin is already naturally found in your skin and helps keep your skin moisturized.
It is a humectant and helps add texture to products. It can make your product thicker.
As a humectant, it helps draw moisture from the air to your skin. This helps your skin stay hydrated.
Learn more about Glycereth-26Kirkland Signature Moisture Shampoo contains this as ingredient number 10.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 8.
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 DistearateKirkland Signature Moisture Shampoo contains this as ingredient number 11.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 14.
We don't have a description for Cocamidopropylamine Oxide.
Kirkland Signature Moisture Shampoo contains this as ingredient number 12.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 12.
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.
Kirkland Signature Moisture Shampoo contains this as ingredient number 13.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 11.
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 ParfumKirkland Signature Moisture Shampoo contains this as ingredient number 14.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 10.
Sodium Cocoyl Glutamate is a gentle cleanser and surfactant. It is the sodium salt of the Cocoyl Glutamic Acid and comes from coconut oil. As a surfactant, it helps lift dirt and oil to be washed away.
Sodium Cocoyl Glutamate also has an emolliating effect and can help leave the skin feeling soft.
Kirkland Signature Moisture Shampoo contains this as ingredient number 15.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 13.
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 DioleateKirkland Signature Moisture Shampoo contains this as ingredient number 16.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 18.
Methyl Gluceth-20 is a humectant. Humectants help draw moisture from the air to your skin.
It is created by combining polyethylene glycol with glucose.
Kirkland Signature Moisture Shampoo contains this as ingredient number 17.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 16.
Amodimethicone is a type of silicone.
Kirkland Signature Moisture Shampoo contains this as ingredient number 19.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 19.
Acrylates Copolymer is used as a film-forming agent and texture enhancer.
After applied, Acrylates Copolymer forms a thin film cover that helps skin feel more soft. It can help sunscreens become more water-resistant.
It is also used to make a product more thick.
Learn more about Acrylates CopolymerKirkland Signature Moisture Shampoo contains this as ingredient number 20.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 17.
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 AcidKirkland Signature Moisture Shampoo contains this as ingredient number 21.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 21.
Polyquaternium-10 is an ammonium salt of hydroxyethylcellulose. It is a white and granular powder used as a film-former and anti-static agent.
This ingredient is commonly found in hair conditioning products. According to a manufacturer, its positive charge makes it great for absorbing hair proteins. The manufacturer also states this ingredient helps with curl retention.
For haircare friends: this ingredient is not a silicone.
Learn more about Polyquaternium-10Kirkland Signature Moisture Shampoo contains this as ingredient number 23.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 20.
This ingredient is derived from guar gum.
It is a conditioning ingredient, meaning it helps soften skin and hair.
Kirkland Signature Moisture Shampoo contains this as ingredient number 24.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 27.
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 ChlorphenesinKirkland Signature Moisture Shampoo contains this as ingredient number 25.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 25.
Trisodium Ethylenediamine Disuccinate is used to help stabilize a product.
It is a chelating agent, meaning it helps prevent metal ions from binding to other ingredients. This prevents unwanted reactions in products. Metal ions can come into a product via the water ingredient. They are found in trace amounts and are not known to be harmful.
Kirkland Signature Moisture Shampoo contains this as ingredient number 26.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 29.
We don't have a description for C11-15 Pareth-7.
Kirkland Signature Moisture Shampoo contains this as ingredient number 29.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 28.
We don't have a description for Laureth-9.
Kirkland Signature Moisture Shampoo contains this as ingredient number 31.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 30.
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 GlycerinKirkland Signature Moisture Shampoo contains this as ingredient number 33.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 31.
We don't have a description for Hydrolyzed Vegetable Protein Pg-Propyl Silanetriol.
Kirkland Signature Moisture Shampoo contains this as ingredient number 34.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 34.
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 PanthenolKirkland Signature Moisture Shampoo contains this as ingredient number 37.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 33.
We don't have a description for Trideceth-12.
Kirkland Signature Moisture Shampoo contains this as ingredient number 38.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 32.
Helianthus Annuus Seed Oil is the oil derived from the seeds of a Sunflower. Sunflower seed oil is non-fragrant. It is an emollient, meaning it helps to soften the skin.
Sunflower seed oil contains many fatty acids. The fatty acids found in sunflower seeds include (from highest amount to least): linoleic acid, myristic acid, palmitic acid, stearic acid, arachidic acid, oleic acid, and linolenic acid.
These fatty acids help the skin create ceramides. Ceramides play a role in repairing the skin barrier.
Helianthus Annuus Seed Oil helps moisturize the skin. This in turn helps the skin look more rejuvenated and smoother.
Sunflowers are rich in vitamin E.
Historians believe Indigenous cultures of North America domesticated sunflowers before corn. Thus they relied on sunflower oil for a variety of uses. One such use is moisturizing skin and hair.
Sunflower seed oil may not be fungal acne safe. We recommend speaking with a professional if you have any concerns.
Learn more about Helianthus Annuus Seed OilKirkland Signature Moisture Shampoo contains this as ingredient number 49.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 37.
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolKirkland Signature Moisture Shampoo contains this as ingredient number 51.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 38.
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 OilKirkland Signature Moisture Shampoo contains this as ingredient number 52.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 40.
Punica Granatum extract comes from the pomegranate.
Pomegranates are rich in fatty acids, including an unsaturated fatty acid by the name of Punicic acid. Other components of pomegranates include Vitamin E, and Vitamin C.
As an astringent, Punica Granatum Extract shrinks tissue by drawing water out of your skin. This leads to a tightening effect in the skin.
Learn more about Punica Granatum ExtractKirkland Signature Moisture Shampoo contains this as ingredient number 62.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 50.
We don't have a description for Quaternium-95.
Kirkland Signature Moisture Shampoo contains this as ingredient number 64.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 43.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
Propanediol is not likely to cause sensitivity and considered safe to use.
It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolKirkland Signature Moisture Shampoo contains this as ingredient number 65.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 44.
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.
It is used to help stabilize other antioxidants or prevent the color from changing in a product.
As an antioxidant, it helps fight free-radical molecules. Free-radical molecules are capable of damaging our cells and other genetic material. Thus, antioxidants may reduce the signs of aging.
This ingredient is oil-soluble.
Learn more about Pentaerythrityl Tetra-Di-T-Butyl HydroxyhydrocinnamateKirkland Signature Moisture Shampoo contains this as ingredient number 72.
Olaplex No.4 Bond Maintenance Shampoo contains this as ingredient number 63.
Here's what our community thinks of the ingredients in these two products.
Kirkland Signature Moisture Shampoo 72 ingredients
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
Usage
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When to use
Kirkland Signature Moisture Shampoo 72 ingredients
Olaplex No.4 Bond Maintenance Shampoo 63 ingredients
Reviews
Here's what our community thinks
Kirkland Signature Moisture Shampoo 72 ingredients
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.
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