Here's our complete breakdown comparing the ingredients, attributes, and more of BIOTHERM Life Plankton Elixir Anti-Aging Serum versus Kiehl's Hydro-Plumping Hydrating Serum .
Published on December 12, 2023
Overview
What they are
These products are both reef safe serums. They have a total of 7 ingredients in common
Cool Features
They both contain Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, scar healing and better texture
Free From
They both do not contain any common allergens, fragrances or parabens
What's Inside
They both contain silicones
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
BIOTHERM Life Plankton Elixir Anti-Aging Serum 26 ingredients
Kiehl's Hydro-Plumping Hydrating Serum 19 ingredients
Contains Alcohol
Ingredients in this product that are types of alcohol:
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
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 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
Contains Sulfate
Ingredients in this product that are types of sulfate:
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 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
At a glance
Click on any of the items below to learn more
BIOTHERM Life Plankton Elixir Anti-Aging Serum 26 ingredients
Kiehl's Hydro-Plumping Hydrating Serum 19 ingredients
Notable Ingredients
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Benefits
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Concerns
This product contains 1 ingredient that may have this attribute:
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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:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient 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 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:
Concerns
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:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
BIOTHERM Life Plankton Elixir Anti-Aging Serum 26 ingredients
Kiehl's Hydro-Plumping Hydrating Serum 19 ingredients
Water • Bifida Ferment Lysate • Glycerin • Alcohol Denat. • Dimethicone • Hydroxyethylpiperazine Ethane Sulfonic Acid • Phenoxyethanol • Octyldodecanol • Sodium Hyaluronate • Caprylyl Glycol • Ammonium Polyacryloyldimethyl Taurate • Vitreoscilla Ferment • Ascorbyl Glucoside • Adenosine • Xanthan Gum • Peg-20 Methyl Glucose Sesquistearate • Trisodium Ethylenediamine Disuccinate • Pentylene Glycol • Faex Extract • Sodium Hydroxide • Sodium Benzoate • Peg-60 Hydrogenated Castor Oil • Hydrolyzed Hyaluronic Acid • Ceramide NP • Tocopherol • Hyaluronic Acid
Water • Glycerin • Dimethicone • Propanediol • Gluconolactone • Polymethylsilsesquioxane • Sodium Chloride • Sodium Dextran Sulfate • Sodium Hydroxide • Phenoxyethanol • Citric Acid • Chlorphenesin • Sodium Citrate • P-Anisic Acid • Disodium EDTA • Peg-10 Dimethicone • Adenosine • Dipropylene Glycol • Tocopherol
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 WaterBIOTHERM Life Plankton Elixir Anti-Aging Serum contains this as ingredient number 1.
Kiehl's Hydro-Plumping Hydrating Serum 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 GlycerinBIOTHERM Life Plankton Elixir Anti-Aging Serum contains this as ingredient number 3.
Kiehl's Hydro-Plumping Hydrating Serum contains this as ingredient number 2.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.
BIOTHERM Life Plankton Elixir Anti-Aging Serum contains this as ingredient number 5.
Kiehl's Hydro-Plumping Hydrating Serum contains this as ingredient number 3.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.
BIOTHERM Life Plankton Elixir Anti-Aging Serum contains this as ingredient number 7.
Kiehl's Hydro-Plumping Hydrating Serum contains this as ingredient number 11.
Adenosine 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 AdenosineBIOTHERM Life Plankton Elixir Anti-Aging Serum contains this as ingredient number 14.
Kiehl's Hydro-Plumping Hydrating Serum contains this as ingredient number 18.
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 HydroxideBIOTHERM Life Plankton Elixir Anti-Aging Serum contains this as ingredient number 20.
Kiehl's Hydro-Plumping Hydrating Serum contains this as ingredient number 10.
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolBIOTHERM Life Plankton Elixir Anti-Aging Serum contains this as ingredient number 25.
Kiehl's Hydro-Plumping Hydrating Serum contains this as ingredient number 20.
Here's what our community thinks of the ingredients in these two products.
BIOTHERM Life Plankton Elixir Anti-Aging Serum 26 ingredients
Kiehl's Hydro-Plumping Hydrating Serum 19 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
BIOTHERM Life Plankton Elixir Anti-Aging Serum 26 ingredients
Kiehl's Hydro-Plumping Hydrating Serum 19 ingredients
Alternatives
Our Dupe Finder has found 50 potential alternatives that have similar ingredients to BIOTHERM Life Plankton Elixir Anti-Aging Serum.
See 50 alternativesOur Dupe Finder has found 50 potential alternatives that have similar ingredients to Kiehl's Hydro-Plumping Hydrating Serum.
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