Here's our complete breakdown comparing the ingredients, attributes, and more of Pureology Hydrate Shampoo versus K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo .
Published on August 30, 2023
Overview
What they are
These products are both vegan, cruelty-free, and reef safe shampoos. They have a total of 7 ingredients in common
Cool Features
They both contain BHA
Suited For
They're both likely to be good for fighting acne, dry skin, brightening skin, oily skin, reducing pores and scar healing
Free From
They both do not contain any parabens
What's Inside
They both contain common allergens and fragrances
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Ingredient Info
Pureology Hydrate Shampoo 62 ingredients
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo 18 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:
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 🎉
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
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 🎉
Oil Free
This product is free of oils 🎉
Malassezia Safe
This product is free of malassezia feeding ingredients 🎉
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
Pureology Hydrate Shampoo 62 ingredients
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo 18 ingredients
Notable Ingredients
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Benefits
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Concerns
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Notable Ingredients
This product contains 1 ingredient that may have this attribute:
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Benefits
This product contains 1 ingredient that may have this attribute:
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Concerns
This product contains 1 ingredient that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Pureology Hydrate Shampoo 62 ingredients
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo 18 ingredients
Water • Sodium Cocoyl Isethionate • Disodium EDTA • Trisodium Sulfosuccinate • Sodium Lauryl Sulfoacetate • Sodium Lauryl Sulfate • Sarcosine • Glycol Distearate • Cocamidopropyl Betaine • Glycereth-26 • Decyl Glucoside • Coconut Acid • Sodium Hydroxide • Sodium Isethionate • Parfum • Citric Acid • Ppg-5-Ceteth-20 • Divinyldimethicone/Dimethicone Copolymer • Sodium Chloride • Polyquaternium-7 • Amodimethicone • Coco-Betaine • Polyquaternium-10 • Propylene Glycol • Peg-55 Propylene Glycol Oleate • Linalool • Carbomer • C11-15 Pareth-7 • Benzoic Acid • Laureth-9 • Butylene Glycol • Glycerin • Limonene • Geraniol • Tocopherol • Benzyl Alcohol • Trideceth-12 • Salicylic Acid • Sodium Benzoate • Helianthus Annuus Seed Extract • Magnesium Nitrate • C12-13 Pareth-23 • C12-13 Pareth-3 • Benzophenone-4 • Tetrasodium EDTA • Phenoxyethanol • Hydroxypropyltrimonium Hydrolyzed Wheat Protein • Wheat Amino Acids • Hydrolyzed Vegetable Protein Pg-Propyl Silanetriol • CI 60730 • Basic Violet 2 • Methylchloroisothiazolinone • Hydrolyzed Soy Protein • Sorbic Acid • Magnesium Chloride • Methylisothiazolinone • Potassium Sorbate • Helianthus Annuus Seed Oil • Ascorbic Acid • Camellia Sinensis Leaf Extract • Rosa Centifolia Flower Extract • Aloe Barbadensis Leaf Extract
Water • Sodium C14-16 Olefin Sulfonate • Cocamidopropyl Hydroxysultaine • Salicylic Acid • Charcoal Powder • Sh-Oligopeptide-78 • Panthenol • Glycerin • Sodium Phytate • Guar Hydroxypropyltrimonium Chloride • Caprylyl Glycol • Caprylhydroxamic Acid • Citric Acid • Potassium Hydroxide • Sodium Hydroxide • Parfum • Benzyl Salicylate • Limonene
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 WaterPureology Hydrate Shampoo contains this as ingredient number 1.
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo contains this as ingredient number 1.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxidePureology Hydrate Shampoo contains this as ingredient number 13.
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo contains this as ingredient number 15.
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 ParfumPureology Hydrate Shampoo contains this as ingredient number 15.
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo contains this as ingredient number 16.
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 AcidPureology Hydrate Shampoo contains this as ingredient number 16.
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo contains this as ingredient number 13.
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 GlycerinPureology Hydrate Shampoo contains this as ingredient number 32.
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo contains this as ingredient number 8.
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 LimonenePureology Hydrate Shampoo contains this as ingredient number 33.
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo contains this as ingredient number 18.
Salicylic Acid (also known as beta hydroxy acid or BHA) is one of the most well-known ingredients for treating skin that struggles with blackheads and acne. It helps to exfoliate both the skin's surface and pores, and also acts as an anti-inflammatory agent.
This multitasking property makes it a great ingredient for cleaning out pores, controlling oil production, and reducing inflammation.
Unlike AHAs which are water soluble, Salicylic Acid is oil soluble. This means that it's able to exfoliate the inside of pores and reduce blackheads.
Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.
It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing a Salicylic Acid into your routine.
In general, Salicylic Acid is a great ingredient for oily acne-prone skin.
While salicylic acid does not increase sun-sensitivity, we still recommend wearing SPF.
If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.
Learn more about Salicylic AcidPureology Hydrate Shampoo contains this as ingredient number 38.
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo contains this as ingredient number 4.
Here's what our community thinks of the ingredients in these two products.
Pureology Hydrate Shampoo 62 ingredients
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo 18 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Pureology Hydrate Shampoo 62 ingredients
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo 18 ingredients
Reviews
Here's what our community thinks
K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo 18 ingredients
There are some clear pros and cons here.
Pros
•good for oily scalp.
•gets rid off excess sebum
•doesn't clog pores
Cons
•bottle is made out of very hard plastic that makes squeezing out product super hard.
•dries the...
There are some clear pros and cons here.
Pros
•good for oily scalp.
•gets rid off excess sebum
•doesn't clog pores
Cons
•bottle is made out of very hard plastic that makes squeezing out product super hard.
•dries the ends
•mega expensive, especially for 250ml
•getting the product spread through the scalp is very tough without using a lot of it. Using a different shampoo first is necessary for me
Alternatives
Our Dupe Finder has found 50 potential alternatives that have similar ingredients to Pureology Hydrate Shampoo.
See 50 alternativesOur Dupe Finder has found 23 potential alternatives that have similar ingredients to K18 Hair PEPTIDE PREP™ Clarifying Detox Shampoo.
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