SkinCeuticals Silymarin CF Versus Kiehl's Age Defender Power Serum
Updated on February 16, 2024
Overview
What they are
These products are both reef safe serums. They have a total of 3 ingredients in common
Cool Features
They both contain ceramides
Suited For
They're both likely to be good for anti aging, brightening skin and scar healing
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain harsh alcohols
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Ingredient Info
SkinCeuticals Silymarin CF 11 ingredients
Kiehl's Age Defender Power Serum 27 ingredients
At a glance
Click on any of the items below to learn more
SkinCeuticals Silymarin CF 11 ingredients
Kiehl's Age Defender Power Serum 27 ingredients
Notable Ingredients
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Benefits
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Concerns
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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 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients 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:
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This product contains 3 ingredients that may have this attribute:
Ingredients Side-by-side
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 WaterAlcohol 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.Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
Another role of this ingredient is preventing a product from melting or freezing. Propylene glycol also adds antimicrobrial properties to a product, elongating product lifespan.
This ingredient is considered an organic alcohol and commonly added into both cosmetics and foods.
Those with sensitive skin or conditions may deliver a rash when using this ingredient.
Learn more about Propylene GlycolIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
SkinCeuticals Silymarin CF 11 ingredients
Kiehl's Age Defender Power Serum 27 ingredients
![](https://skinsort.com/assets/routine_creator/when_to_use_card-684ec64d.webp)
Reviews
Here's what our community thinks