Kiehl's Precision Lifting & Pore-Tightening Concentrate Versus La Roche-Posay 10% Pure Vitamin C Serum
Updated on March 21, 2024
Overview
What they are
These products are both reef safe serums. They have a total of 9 ingredients in common
Cool Features
They both contain Vitamin E
Suited For
They're both likely to be good for dry skin, reducing pores and scar healing
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain harsh alcohols, 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
Kiehl's Precision Lifting & Pore-Tightening Concentrate 34 ingredients
La Roche-Posay 10% Pure Vitamin C Serum 29 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Kiehl's Precision Lifting & Pore-Tightening Concentrate 34 ingredients
La Roche-Posay 10% Pure Vitamin C Serum 29 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningButylene Glycol
Humectant
Bis-PEG-18 Methyl Ether Dimethyl Silane
EmollientMethyl Gluceth-20
HumectantPEG-20
HumectantSqualane
Emollient
Dimethicone
Emollient
Alcohol Denat.
Antimicrobial
Octyldodecanol
EmollientCyclohexasiloxane
Emollient
Lauroyl Lysine
Skin ConditioningCarbomer
Emulsion StabilisingPhenoxyethanol
Preservative
Tocopheryl Acetate
Antioxidant
Hydrogenated Lecithin
EmulsifyingPentylene Glycol
Skin ConditioningCaprylyl Glycol
EmollientPolysilicone-11
Yeast Extract
Skin Conditioning
Xanthan Gum
EmulsifyingAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingPvp
Emulsion StabilisingPelargonium Graveolens Flower Oil
Masking
Adenosine
Skin Conditioning
Capryloyl Salicylic Acid
Exfoliating
Disodium EDTA
Sodium Hydroxide
BufferingSerum Protein
HumectantCitronellol
Perfuming
Geraniol
Perfuming
Pelargonium Roseum Leaf Oil
Perfuming
Linalool
Perfuming
Citral
Perfuming
Limonene
Perfuming
Water, Butylene Glycol, Bis-PEG-18 Methyl Ether Dimethyl Silane, Methyl Gluceth-20, PEG-20, Squalane, Dimethicone, Alcohol Denat., Octyldodecanol, Cyclohexasiloxane, Lauroyl Lysine, Carbomer, Phenoxyethanol, Tocopheryl Acetate, Hydrogenated Lecithin, Pentylene Glycol, Caprylyl Glycol, Polysilicone-11, Yeast Extract, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Pvp, Pelargonium Graveolens Flower Oil, Adenosine, Capryloyl Salicylic Acid, Disodium EDTA, Sodium Hydroxide, Serum Protein, Citronellol, Geraniol, Pelargonium Roseum Leaf Oil, Linalool, Citral, Limonene
Water
Skin ConditioningAscorbic Acid
Antioxidant
Cyclohexasiloxane
Emollient
Glycerin
Humectant
Alcohol Denat.
Antimicrobial
Potassium Hydroxide
BufferingPolymethylsilsesquioxane
Polysilicone-11
Dimethicone
Emollient
Propylene Glycol
Humectant
Pentaerythrityl Tetraethylhexanoate
EmollientC13-14 Isoparaffin
Emollient
Tocopherol
Antioxidant
Sodium Hyaluronate
Humectant
Hydrolyzed Hyaluronic Acid
Humectant
Adenosine
Skin Conditioning
Acetyl Dipeptide-1 Cetyl Ester
Skin Conditioning
PEG-20 Methyl Glucose Sesquistearate
Emulsifying
Poloxamer 338
EmulsifyingSalicylic Acid
Masking
Polyacrylamide
Toluene Sulfonic Acid
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingXanthan Gum
EmulsifyingCaprylyl Glycol
EmollientDisodium EDTA
BHT
Antioxidant
Laureth-7
EmulsifyingParfum
Masking
Water, Ascorbic Acid, Cyclohexasiloxane, Glycerin, Alcohol Denat., Potassium Hydroxide, Polymethylsilsesquioxane, Polysilicone-11, Dimethicone, Propylene Glycol, Pentaerythrityl Tetraethylhexanoate, C13-14 Isoparaffin, Tocopherol, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Adenosine, Acetyl Dipeptide-1 Cetyl Ester, PEG-20 Methyl Glucose Sesquistearate, Poloxamer 338, Salicylic Acid, Polyacrylamide, Toluene Sulfonic Acid, Ammonium Polyacryloyldimethyl Taurate, Xanthan Gum, Caprylyl Glycol, Disodium EDTA, BHT, Laureth-7, 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 WaterDimethicone 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 DimethiconeAlcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives.
This ingredient gets a bad rep because it is irritating and drying - mostly due to its astringent property. Astringents draw out natural oils in tissue, constricting pores and leaving your skin dried out.
However, alcohol denat. is not all that bad.
Due to its low molecular weight, alcohol denat. tends to evaporate quickly. One study on pig skin found half of applied alcohol evaporated in 10 seconds and less than 3% stayed on skin.
This also helps other ingredients become better absorbed upon application.
Studies are conflicted about whether this ingredient causes skin dehydration. One study from 2005 found adding emollients to propanol-based sanitizer decreased skin dryness and irritation. Another study found irritation only occurs if your skin is already damaged.
Small amounts of alcohol are generally tolerated by oily skin or people who live in humid environments.
The rule of thumb is if this alcohol is near the end of an ingredients list, it will probably not affect your skin much.
Also...
This ingredient has antimicrobial and solvent properties.
The antimicrobial property helps preserve products and increase their shelf life. As a solvent, it helps dissolve other ingredients.
Other types of astringent alcohols include:
Learn more about Alcohol Denat.Cyclohexasiloxane is a type of silicone more commonly known as D6. It is an emollient and solvent.
Cyclohexasiloxane is used to evenly distribute ingredients throughout the product. When applied to the skin, Cyclohexasiloxane evaporates and leaves behind a silky feel.
As an emollient, it can help the skin feel soft and hydrated. It is also used to reduce frizz in hair products.
Learn more about CyclohexasiloxaneCaprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolWe don't have a description for Polysilicone-11 yet.
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumAdenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.
Studies have found adenosine may also help with wound healing.
In skincare products, Adenosine is usually derived from yeast.
Learn more about AdenosineDisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Kiehl's Precision Lifting & Pore-Tightening Concentrate 34 ingredients
La Roche-Posay 10% Pure Vitamin C Serum 29 ingredients
Reviews
Here's what our community thinks
Kiehl's Precision Lifting & Pore-Tightening Concentrate 34 ingredients
La Roche-Posay 10% Pure Vitamin C Serum 29 ingredients
So far so good.
I have sensitive skin and this doesn't sting at all.
This was my first vitamin C serum
I started using this because I was curious about Vitamin C and wanted to experience its benefits. This is a really good and gentle Vitamin C serum for sensitive skin. Mine got used to it and now tolerates stronger products.
