Versus

Algenist Genius Ultimate Anti-Aging Vitamin C+ Serum Versus Olehenriksen Banana Bright Vitamin C Serum

Serum
Serum
American Brand
Danish Brand

Updated on June 05, 2025

Overview

What they are

These products are both reef safe serums. They have a total of 13 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, oily 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
Genius Ultimate Anti-Aging Vitamin C+ Serum
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.

Skin Conditioning

You might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.

Like other types of vitamin C, this ingredient has many benefits including reducing wrinkles, skin soothing, dark spot fading, and fighting against free radicals.

3-O-Ethyl Ascorbic Acid interferes with the process of skin darkening, helping to reduce hyperpigmentation. It also encourages the skin to produce more collagen.

Once applied, 3-O-Ethyl Ascorbic Acid is converted to Vitamin C deeper in the skin's layers. This process is slow but makes this ingredient more tolerable for skin.

The optimum pH range for this ingredient is 4 - 5.5

Learn more about 3-O-Ethyl Ascorbic Acid
Skin Conditioning

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.

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

This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.

It is also an emulsifer, meaning it prevents ingredients such as oil and water from separating. It also helps evenly disperse other ingredients.

Leuconostoc/Radish Root Ferment Filtrate is a natural preservative. It comes from fermenting radish roots with a bacteria called leuconostoc.

Leuconostoc comes from lactic acid.

This ingredient has antimicrobial properties and helps prevent the growth of bacteria in a product.

Leuconostoc is used to make the traditional Korean side-dish, kimchi. It is also used to make sourdough bread (both incredibly yummy foods).

Learn more about Leuconostoc/Radish Root Ferment Filtrate
Masking, Perfuming

Parfum 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 Parfum
Preservative

Phenoxyethanol 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.

Polymethylsilsesquioxane is a silicone used as a film forming agent.

When applied to the skin, this ingredient creates an invisible film on the surface. This film still allows oxygen to pass through, but prevents moisture from escaping. This can help condition and hydrate the skin. It also leaves a silky feel when applied.

Polymethylsilsesquioxane has not been shown to clog pores. It has been deemed safe to use up to 55%, but most cosmetics use much less.

If you have concerns about using this ingredient, we recommend speaking with a professional.

Learn more about Polymethylsilsesquioxane
Emulsifying

Polysorbate 60 is used to help stabilize products. It is a surfactant and emulsifier. These properties help keep ingredients together in a product. Surfactants help reduce surface tension between ingredients with different states, such as liquids and solids. Emulsifiers help prevent oils and waters from separating.

Polysorbate 60 is sorbitol-based and created from the ethoxylation of sorbitan. Ethoxylation is a chemical reaction used to add ethylene oxide. Sorbitan is a the dehydrated version of sorbitol, a sugar found in fruits.

In this case, the 60 comes from reacting 60 units of ethylene oxide with sorbitan.

Polysorbates are commonly used in medicine and foods.

Learn more about Polysorbate 60
Buffering, Masking

Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.

Its main functions are to maintain the pH of a product and neutralize metal ions.

The acidity of our skin is maintained by our glands and skin biome; normal pH level of skin is slightly acidic (~4.75-5.5).

Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.

Learn more about Sodium Citrate
Emulsifying

Sorbitan Isostearate is an emulsifer and cleaning agent. It is created from isostearic acid and sorbitol.

As an emulsifier, Sorbitan Isostearate prevents oils and water from separating.

Due to its isostearic acid base, it may not be safe for Malassezia or fungal acne.

Learn more about Sorbitan Isostearate
Skin Conditioning, Solvent

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 Water
Emulsifying, Emulsion Stabilising, Gel Forming

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 Gum

When to use

92 Routines
86% use in am
14% use in pm
90% use every day
When to use See routines that use it ->

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Strong Scent 100% Expensive 100% Hydrating 100%