Philip Kingsley Finishing Touch Polishing Serum Versus Kérastase Nutritive 8H Magic Night Serum Hydrating Treatment
Updated on March 17, 2025
Overview
What they are
These products are both reef safe hair serums. They have a total of 12 ingredients in common
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
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
Philip Kingsley Finishing Touch Polishing Serum 23 ingredients
Kérastase Nutritive 8H Magic Night Serum Hydrating Treatment 29 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Philip Kingsley Finishing Touch Polishing Serum 23 ingredients
Kérastase Nutritive 8H Magic Night Serum Hydrating Treatment 29 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Propylene Glycol
Humectant
Water
Skin ConditioningCyclopentasiloxane
Emollient
Dimethiconol
Emollient
Polyacrylamide
Phenoxyethanol
Preservative
C13-14 Isoparaffin
Emollient
Parfum
Masking
Polyamide-2
Laureth-7
EmulsifyingEthylhexylglycerin
Skin ConditioningDisodium EDTA
Linalool
Perfuming
Hydroxycitronellal
Perfuming
Panthenol
Skin Conditioning
Alpha-Isomethyl Ionone
Perfuming
Retinyl Palmitate
Skin Conditioning
Citronellol
Perfuming
Butylphenyl Methylpropional
Perfuming
Cetrimonium Chloride
Antimicrobial
Geraniol
Perfuming
Tocopherol
Antioxidant
Citric Acid
Buffering
Propylene Glycol, Water, Cyclopentasiloxane, Dimethiconol, Polyacrylamide, Phenoxyethanol, C13-14 Isoparaffin, Parfum, Polyamide-2, Laureth-7, Ethylhexylglycerin, Disodium EDTA, Linalool, Hydroxycitronellal, Panthenol, Alpha-Isomethyl Ionone, Retinyl Palmitate, Citronellol, Butylphenyl Methylpropional, Cetrimonium Chloride, Geraniol, Tocopherol, Citric Acid
Water
Skin ConditioningDimethicone
Emollient
C13-16 Isoalkane
SolventNiacinamide
Smoothing
Glycerin
Humectant
Polyacrylamide
Phenoxyethanol
Preservative
C13-14 Isoparaffin
Emollient
Laureth-7
EmulsifyingPanthenol
Skin Conditioning
Ascorbyl Glucoside
Antioxidant
Butylene Glycol
Humectant
Linalool
Perfuming
Hydroxycitronellal
Perfuming
Benzyl Salicylate
Perfuming
Benzyl Alcohol
Perfuming
Hexyl Cinnamal
Perfuming
Citronellol
Perfuming
Hydrolyzed Wheat Protein
Skin ConditioningAlpha-Isomethyl Ionone
Perfuming
Coumarin
Perfuming
Hydrolyzed Corn Protein
Skin ConditioningHydrolyzed Soy Protein
HumectantLimonene
Perfuming
Iris Florentina Root Extract
MaskingCitric Acid
Buffering
CI 19140
Cosmetic ColorantCI 14700
Cosmetic ColorantParfum
Masking
Water, Dimethicone, C13-16 Isoalkane, Niacinamide, Glycerin, Polyacrylamide, Phenoxyethanol, C13-14 Isoparaffin, Laureth-7, Panthenol, Ascorbyl Glucoside, Butylene Glycol, Linalool, Hydroxycitronellal, Benzyl Salicylate, Benzyl Alcohol, Hexyl Cinnamal, Citronellol, Hydrolyzed Wheat Protein, Alpha-Isomethyl Ionone, Coumarin, Hydrolyzed Corn Protein, Hydrolyzed Soy Protein, Limonene, Iris Florentina Root Extract, Citric Acid, CI 19140, CI 14700, Parfum
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 WaterPolyacrylamide is a synthetic polymer. It is used to stabilize products and bind ingredients. When hydrated, Polyacrylamide forms a soft gel.
Polyacrylamide is low-toxicity. If source properly, it is deemed safe to use in cosmetics.
It should be noted the precursor to Polyacrylamide is acrylamide. Acrylamide is a carcinogen. Most reputable sources of Polyacrylamide will screen for residual acrylamide to make sure the count is in a safe range. Acrylamide is not able to be absorbed through the skin.
We recommend speaking with a professional if you have concerns.
Learn more about PolyacrylamidePhenoxyethanol 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.
C13-14 Isoparaffin is created from petroleum-based mineral oils. It is an emollient and helps thicken a product.
As an emollient, it helps keep the skin soft and smooth by creating a barrier on top. This barrier traps moisture in, keeping the skin hydrated.
C13-14 Isoparaffin may not be fungal-acne safe.
Learn more about C13-14 IsoparaffinParfum 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 ParfumLaureth-7 is created by the ethoxylation of lauryl alcohol using ethylene oxide. Lauryl alcohol is a fatty alcohol with hydrating properties.
This ingredient is an emulsifier and cleansing ingredient. As an emulsifier, it is used to prevent ingredients from separating. It also helps cleanse the skin by gathering dirt, oil, and pollutants to be rinsed away.
Linalool 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 LinaloolHydroxycitronellal is a fragrance created from citronellal. The smell of hydroxycitronellal is often described as "citrus-like" or "melon-like".
Hydroxycitronellal is a known EU allergen and may cause irritation when applied to the skin.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.
There are two forms of panthenol: D and L.
D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.
Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):
Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.
This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
This ingredient is also referred to as pro-vitamin B5.
Learn more about PanthenolAlpha-Isomethyl Ionone is a fragrance. It can be synthetically created or naturally occurring.
The scent of Alpha-Isomethyl Ionone is described as "flowery" but can also be "woody".
Naturally occurring Alpha-Isomethyl Ionone may be found in Saccharomyces cerevisiae, or the yeast used to make wine and bread.
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 Alpha-Isomethyl IononeCitronellol is used to add fragrance/parfum to a product. It is often derived from plants such as roses. In fact, it can be found in many essential oils including geranium, lavender, neroli, and more. The scent of Citronellol is often described as "fresh, grassy, and citrus-like".
Since the Citronellol molecule is already unstable, Citronellol becomes irritating on the skin when exposed to air.
Citronellol is a modified terpene. Terpenes are unsaturated hydrocarbons found in plants. They make up the primary part of essential oils.
Citronellol is not able to be absorbed into deeper layers of the skin. It has low permeability,
Citronellol is also a natural insect repellent.
Learn more about CitronellolCitric 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
Here's what our community thinks of the ingredients in these products.
When to use
Philip Kingsley Finishing Touch Polishing Serum 23 ingredients
Kérastase Nutritive 8H Magic Night Serum Hydrating Treatment 29 ingredients
Reviews
Here's what our community thinks
Philip Kingsley Finishing Touch Polishing Serum 23 ingredients
Kérastase Nutritive 8H Magic Night Serum Hydrating Treatment 29 ingredients
Repairs your hair super quickly and makes shiny and soft
I loved applying this every night. and I wake up with softer and smoother hair. This smells so good too! Would love to repurchase, but this is so expensive.
