Kevin Murphy Killer.Curls Rinse Versus Waitrose & Partners Essential Nourishing Conditioner
Updated on March 04, 2024
Overview
What they are
These products are both reef safe conditioners. They have a total of 8 ingredients in common
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 harsh alcohols or parabens
What's Inside
They both contain oils and sulfates
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
Kevin Murphy Killer.Curls Rinse 16 ingredients
Waitrose & Partners Essential Nourishing Conditioner 15 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Kevin Murphy Killer.Curls Rinse 16 ingredients
Waitrose & Partners Essential Nourishing Conditioner 15 ingredients
Key Ingredients
Benefits
Concerns
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningCetearyl Alcohol
Emollient
Capryloyl Glycerin/Sebacic Acid Copolymer
Skin ConditioningDiheptyl Succinate
EmollientBehentrimonium Methosulfate
Glycerin
Humectant
Avena Sativa Kernel Extract
Abrasive
Xanthan Gum
EmulsifyingPersea Gratissima Oil
Skin Conditioning
Hydroxyacetophenone
Antioxidant
Guar Hydroxypropyltrimonium Chloride
Skin ConditioningCetrimonium Chloride
Antimicrobial
Phenoxyethanol
Preservative
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Citric Acid
Buffering
Water, Cetearyl Alcohol, Capryloyl Glycerin/Sebacic Acid Copolymer, Diheptyl Succinate, Behentrimonium Methosulfate, Glycerin, Avena Sativa Kernel Extract, Xanthan Gum, Persea Gratissima Oil, Hydroxyacetophenone, Guar Hydroxypropyltrimonium Chloride, Cetrimonium Chloride, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Citric Acid
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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterCetearyl 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 AlcoholBehentrimonium Methosulfate is an ammonium salt. It is mainly used to prevent static in haircare products as a surfactant.
Surfactants have differing ends: one side is hydrophilic while the other end is hydrophobic.
Surfactants also help your cleansers remove pollutants more easily from the skin.
Learn more about Behentrimonium MethosulfateGlycerin 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 GlycerinThis ingredient is a preservative, antimicrobial, and emulsifier. It is often used in cosmetics for its ability to cleanse, condition, and reduce static.
Cetrimonium chloride is a quaternary ammonium salt, meaning it has a water-soluble structure.
Phenoxyethanol 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.
Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoateCitric 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 AcidIngredient Ratings
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