Versus

Olehenriksen Banana Bright Vitamin C Serum Versus Kiehl's Powerful-Strength Vitamin C Serum

Serum
Serum
Danish Brand
American Brand

Updated on June 05, 2025

Overview

What they are

These products are both reef safe serums. They have a total of 6 ingredients in common

Cool Features

They both contain Vitamin C

Suited For

They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores, scar healing, dark spots and better texture

Free From

They both do not contain any harsh alcohols, parabens or sulfates

What's Inside

They both contain common allergens, fragrances, oils 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

Click any item below to learn more and see relevant ingredients

What's inside (and what isn't)

What's inside (and what isn't)

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Banana Bright Vitamin C Serum

Water

Skin Conditioning

Squalane

Emollient
1 / 0 Helps hydrate Dry Skin Icon

Dimethicone

Emollient
1 / 0 Silicon Icon

Cetearyl Alcohol

Emollient
2 / 1 Fatty Alcohol IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconHelps brighten skin Icon

Caprylic/Capric Triglyceride

Masking
Helps hydrate Dry Skin Icon

Isododecane

Emollient

Polymethylsilsesquioxane

Silicon Icon

Mica

Cosmetic Colorant
May worsen Eczema Icon

Coconut Alkanes

Emollient
Not safe for Fungal Acne Icon

CI 77891

Cosmetic Colorant

Sclerocarya Birrea Seed Oil

Humectant
Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Dilinoleic Acid/Propanediol Copolymer

Emollient

3-O-Ethyl Ascorbic Acid

Skin Conditioning
Vitamin C IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores Icon

Cetearyl Methicone

Skin Conditioning
Silicon Icon

Silica

Abrasive
Exfoliant IconMay worsen Eczema IconMay worsen Rosacea Icon

Phenoxyethanol

Preservative
Preservative Icon

Cetearyl Glucoside

Emulsifying

Xylitylglucoside

Humectant
Helps hydrate Dry Skin Icon

Dimethicone/Vinyltrimethylsiloxysilicate Crosspolymer

Anhydroxylitol

Humectant
Helps hydrate Dry Skin Icon

Microcrystalline Cellulose

Absorbent

Potassium Cetyl Phosphate

Emulsifying

Stevioside

Masking

Polysilicone-11

Coco-Caprylate/Caprate

Emollient
Not safe for Fungal Acne Icon

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Emulsion Stabilising

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Emulsion Stabilising

Xylitol

Humectant
Helps hydrate Dry Skin Icon

Tocopherol

Antioxidant
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Potassium Azeloyl Diglycinate

Skin Conditioning
Good for Oily Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Dark Spots Icon

CI 77491

Cosmetic Colorant

Dipotassium Glycyrrhizate

Humectant
Helps reduce Skin Redness IconHelps reduce irritation IconGood for Dark Spots Icon

Ethylhexylglycerin

Skin Conditioning

Glucose

Humectant
Helps hydrate Dry Skin Icon

Xanthan Gum

Emulsifying

Sodium Citrate

Buffering

Citrus Aurantium Dulcis Fruit Extract

Masking

Citrus Limon Fruit Extract

Masking
May cause irritation Icon

Hippophae Rhamnoides Extract

Masking

Lycium Barbarum Fruit Extract

Astringent
Helps hydrate Dry Skin Icon

Rosa Canina Fruit Extract

Astringent
Helps hydrate Dry Skin IconGood for Dark Spots IconGood for Scar Healing Icon

Sodium Hydroxide

Buffering

Leuconostoc/Radish Root Ferment Filtrate

Antimicrobial
Not safe for Fungal Acne Icon

Polysorbate 60

Emulsifying
Not safe for Fungal Acne Icon

Sorbitan Isostearate

Emulsifying
1-2 / 0 Not safe for Fungal Acne Icon

Ascorbic Acid

Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon

Aroma

Sodium Chloride

Masking
Can worsen Dry Skin IconBad for Acne Prone Skin IconMay worsen Rosacea Icon

Citral

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Rosacea Icon

Limonene

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Linalool

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Antioxidant, Buffering, Masking

Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.

Not only is vitamin C great for your overall health and immune system, it also has plenty of benefits on your skin.

Vitamin C is best used for brightening skin. It improves dark spots, acne scars, and hyperpigmentation. This is because it blocks the process of skin darkening when exposed to UV.

Remember: Vitamin C should not replace sunscreen!

Your skin uses vitamin C to build collagen. Collagen is one key component in having a strong skin barrier and plump skin. Vitamin C also plays a role in regulating collagen, thus making it effective in improving wrinkles and fine lines.

Ascorbic acid shows potent antioxidant activity. As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells. These antioxidants also protect skin against UV damage.

The best formulations include Vitamin E and/or ferulic acid. These two ingredients help stabilize and provide a boost in the benefits of ascorbic acid. This is because ascorbic acid becomes unstable when exposed to UV and air. In fact, you can tell your ascorbic acid has oxidized when it turns an orange-yellow color.

Ascorbic acid is generally compatible with other ingredients. However, using ascorbic acid with other active ingredients might cause irritation. Two ingredients: copper ions and benzoyl peroxide, will inactivate ascorbic acid completely.

Read more about other types of Vitamin C:

Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.

Learn more about Ascorbic Acid
Perfuming

Citral is a fragrance and used to add a lemon-like scent to products. It is both naturally found in plants and created synthetically. In plants, it is commonly occurring in lemon myrtle, lemongrass, lemon tea-tree, lemon verbena, and other citruses.

The EU mandates Citral be listed separately as a fragrance. It is a known allergen and may cause contact dermatitis. Citral can also used as a masking ingredient.

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.

The term 'citral' is a collective term for two geometric isomers: geranial/Citral A and neral/Citral B.

Learn more about Citral
Emollient, Skin Conditioning, Skin Protecting

Dimethicone 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 Dimethicone
Humectant, Skin Conditioning, Skin Protecting

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 Glycerin
Perfuming, Solvent

Limonene is a fragrance that adds scent and taste to a formulation.

It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".

Limonene acts as an antioxidant, meaning it helps neutralize free radicals.

When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.

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 Limonene

We don't have a description for Polysilicone-11 yet.

When to use

94 Routines
86% use in am
14% use in pm
89% use every day
When to use See routines that use it ->
120 Routines
77% use in am
23% use in pm
88% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

3.67
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What people say
Strong Scent 100% Expensive 100% Hydrating 100%
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