Here's our complete breakdown comparing the ingredients, attributes, and more of BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair versus K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo .
Published on December 31, 2023
Overview
What they are
These products are both cruelty-free and reef safe shampoos. They have a total of 7 ingredients in common
Cool Features
They both contain peptides
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, silicones or sulfates
What's Inside
They both contain fragrances
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
BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair 30 ingredients
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo 18 ingredients
Contains Alcohol
Ingredients in this product that are types of alcohol:
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 🎉
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:
Non Vegan
This product is not 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 🎉
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 🎉
EU Allergen Free
This product is free of 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
BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair 30 ingredients
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo 18 ingredients
Notable Ingredients
This product contains 1 ingredient 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:
Benefits
This product contains 2 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
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:
This product contains 3 ingredients that may have this attribute:
Concerns
This product contains 2 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Benefits
This product contains 1 ingredient 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:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair 30 ingredients
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo 18 ingredients
Water • Sodium Cocoyl Isethionate • Lauramidopropyl Betaine • Glycerin • Sodium C14-16 Olefin Sulfonate • Cocamidopropyl Hydroxysultaine • Coffea Arabica Seed Oil • Copper Tripeptide-34 • Panax Ginseng Root Extract • Biotin • Coconut Acid • Leuconostoc/Radish Root Ferment Filtrate • Sodium Methyl Cocoyl Taurate • Sodium Isethionate • Citric Acid • Aloe Barbadensis Leaf Juice • Caffeine • Propanediol • Lindera Strychnifolia Root Extract • Tocopheryl Acetate • Ubiquinone • Glycine • Larix Europaea Wood Extract • Sodium Metabisulfite • Camellia Sinensis Leaf Extract • Zinc Chloride • Sodium Hydroxide • Parfum • Caprylhydroxamic Acid • Benzyl Alcohol
Water • Sodium C14-16 Olefin Sulfonate • Cocamidopropyl Betaine • Sodium Methyl 2-Sulfolaurate • Sodium Lauryl Sulfoacetate • Sh-Oligopeptide-78 • Panthenol • Glycerin • Sodium Phytate • Guar Hydroxypropyltrimonium Chloride • Disodium 2-Sulfolaurate • Caprylyl Glycol • Caprylhydroxamic Acid • Benzoic Acid • Citric Acid • Sodium Hydroxide • Parfum • 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 WaterBrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair contains this as ingredient number 1.
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo contains this as ingredient number 1.
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 GlycerinBrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair contains this as ingredient number 4.
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo contains this as ingredient number 8.
Sodium C14-16 Olefin Sulfonate is a cleansing agent made from a mixture of long chain sulfonate salts. It can also help produce foam.
This ingredient may be drying. We recommend speaking with a professional if you have concerns.
BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair contains this as ingredient number 5.
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo contains this as ingredient number 2.
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 AcidBrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair contains this as ingredient number 15.
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo contains this as ingredient number 15.
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 HydroxideBrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair contains this as ingredient number 27.
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo contains this as ingredient number 16.
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 ParfumBrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair contains this as ingredient number 28.
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo contains this as ingredient number 17.
Caprylhydroxamic Acid is a chelating agent.
Chelating agents help prevent metal ions from binding to other ingredients. This helps prevent unwanted reactions and effects from using the product.
Caprylhydroxamic Acid is often used with natural antimicrobial products as an alternative to preservatives.
Learn more about Caprylhydroxamic AcidBrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair contains this as ingredient number 29.
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo contains this as ingredient number 13.
Here's what our community thinks of the ingredients in these two products.
BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair 30 ingredients
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo 18 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair 30 ingredients
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo 18 ingredients
Alternatives
Our Dupe Finder has found 9 potential alternatives that have similar ingredients to BrioGeo Destined For Density Peptide Shampoo for Thicker, Fuller Hair.
See 9 alternativesOur Dupe Finder has found 50 potential alternatives that have similar ingredients to K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo.
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