Biolage Strength Recovery Repairing Leave-In Conditioner Spray Versus REDKEN Acidic Bonding Concentrate Leave-In Conditioner for Damaged Hair
Updated on March 03, 2025
Overview
What they are
These products are both vegan and reef safe leave-in conditioners. They have a total of 8 ingredients in common
Suited For
They're both likely to be good for dry skin
Free From
They both do not contain any oils, parabens or sulfates
What's Inside
They both contain common allergens, fragrances and silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Biolage Strength Recovery Repairing Leave-In Conditioner Spray 25 ingredients
REDKEN Acidic Bonding Concentrate Leave-In Conditioner for Damaged Hair 25 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Biolage Strength Recovery Repairing Leave-In Conditioner Spray 25 ingredients
REDKEN Acidic Bonding Concentrate Leave-In Conditioner for Damaged Hair 25 ingredients
Benefits
Concerns
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningCetearyl Alcohol
Emollient
Dimethicone
Emollient
Behentrimonium Chloride
Preservative
Quaternium-80
Phenoxyethanol
Preservative
Propylene Glycol
Humectant
Isopropyl Alcohol
Solvent
Parfum
Masking
Squalane
Emollient
Butyrospermum Parkii Butter
Skin Conditioning
Limonene
Perfuming
Chlorhexidine Dihydrochloride
Antimicrobial
Citric Acid
Buffering
Hexyl Cinnamal
Perfuming
Coumarin
Perfuming
Benzyl Alcohol
Perfuming
Linalool
Perfuming
Amyl Cinnamal
Perfuming
Geraniol
Perfuming
Isoeugenol
Perfuming
Alpha-Isomethyl Ionone
Perfuming
Hydroxycitronellal
Perfuming
Benzyl Benzoate
Antimicrobial
Cinnamyl Alcohol
Perfuming
Water, Cetearyl Alcohol, Dimethicone, Behentrimonium Chloride, Quaternium-80, Phenoxyethanol, Propylene Glycol, Isopropyl Alcohol, Parfum, Squalane, Butyrospermum Parkii Butter, Limonene, Chlorhexidine Dihydrochloride, Citric Acid, Hexyl Cinnamal, Coumarin, Benzyl Alcohol, Linalool, Amyl Cinnamal, Geraniol, Isoeugenol, Alpha-Isomethyl Ionone, Hydroxycitronellal, Benzyl Benzoate, Cinnamyl Alcohol
Water
Skin ConditioningDimethicone
Emollient
Cetearyl Alcohol
Emollient
Amodimethicone
Phenoxyethanol
Preservative
Polyquaternium-37
Dimethiconol
Emollient
Parfum
Masking
Propylene Glycol Dicaprylate/Dicaprate
EmollientTrideceth-5
EmulsifyingSteareth-20
CleansingCetyl Hydroxyethylcellulose
Emulsion StabilisingGlycerin
Humectant
Citric Acid
Buffering
Limonene
Perfuming
PPG-1 Trideceth-6
Skin ConditioningTrideceth-10
CleansingSodium Hydroxide
BufferingChlorhexidine Digluconate
Antimicrobial
Sorbitan Oleate
Emulsifying
Acetic Acid
BufferingLinalool
Perfuming
Citronellol
Perfuming
Citral
Perfuming
Eugenol
Perfuming
Water, Dimethicone, Cetearyl Alcohol, Amodimethicone, Phenoxyethanol, Polyquaternium-37, Dimethiconol, Parfum, Propylene Glycol Dicaprylate/Dicaprate, Trideceth-5, Steareth-20, Cetyl Hydroxyethylcellulose, Glycerin, Citric Acid, Limonene, PPG-1 Trideceth-6, Trideceth-10, Sodium Hydroxide, Chlorhexidine Digluconate, Sorbitan Oleate, Acetic Acid, Linalool, Citronellol, Citral, Eugenol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.
Cetearyl alcohol is an emollient. Emollients help soothe and hydrate the skin by trapping moisture.
Studies show Cetearyl alcohol is non-toxic and non-irritating. The FDA allows products labeled "alcohol-free" to have fatty alcohols.
This ingredient is usually derived from plant oils such as palm, vegetable, or coconut oils. There is debate on whether this ingredient will cause acne.
Due to the fatty acid base, this ingredient may not be Malassezia folliculitis safe.
Learn more about Cetearyl AlcoholCitric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
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 even out skin tone.
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.
Read more about some other popular AHA's here:
Learn more about Citric AcidDimethicone is a type of synthetic silicone created from natural materials such as quartz.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeLimonene 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 LimoneneLinalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
Like Limonene, this ingredient oxidizes when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.
This ingredient has a scent that is floral, spicy tropical, and citrus-like.
Learn more about LinaloolParfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient 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.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.
The term 'parfum' or '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 by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
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 ParfumPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent 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.
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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Biolage Strength Recovery Repairing Leave-In Conditioner Spray 25 ingredients
REDKEN Acidic Bonding Concentrate Leave-In Conditioner for Damaged Hair 25 ingredients
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Biolage Strength Recovery Repairing Leave-In Conditioner Spray 25 ingredients
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