Versus

Dear, Klairs Fundamental Watery Oil Drop Versus Isntree TW-Real Bifida Ampoule

Serum
Ampoule
Korean Brand
Korean Brand

Updated on September 05, 2024

Overview

What they are

These products are both vegan, cruelty-free, and reef safe . They have a total of 17 ingredients in common

Cool Features

They both contain ceramides, peptides and Vitamin E

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, common allergens, parabens or sulfates

What's Inside

They both contain fragrances

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
Fundamental Watery Oil Drop
TW-Real Bifida Ampoule

Water

Skin Conditioning

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Dipropylene Glycol

Masking

Glycerin

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

Cyclopentasiloxane

Emollient
Silicon Icon

Squalane

Emollient
1 / 0 Helps hydrate Dry Skin Icon

Hydrogenated Polydecene

Emollient

Niacinamide

Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin Icon

Dimethicone

Emollient
1 / 0 Silicon Icon

Pentaerythrityl Tetraethylhexanoate

Emollient
Helps hydrate Dry Skin Icon

Bifida Ferment Lysate

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce irritation Icon

Arachidyl Alcohol

Emollient

Butyrospermum Parkii Butter

Skin Conditioning
Helps hydrate Dry Skin IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Cetearyl Alcohol

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

C12-16 Alcohols

Emollient

Polyglyceryl-2 Stearate

Emulsifying
Not safe for Fungal Acne Icon

Dimethicone/Vinyl Dimethicone Crosspolymer

Skin Conditioning
Silicon Icon

Behenyl Alcohol

Emollient
Fatty Alcohol Icon

Erythritol

Humectant
Helps hydrate Dry Skin Icon

Polysorbate 60

Emulsifying
Not safe for Fungal Acne Icon

1,2-Hexanediol

Skin Conditioning
Helps hydrate Dry Skin Icon

Glyceryl Stearate

Emollient
1 / 0 Not safe for Fungal Acne Icon

Hydrogenated Lecithin

Emulsifying
Helps hydrate Dry Skin Icon

Stearyl Alcohol

Emollient
2 / 2 Fatty Alcohol Icon

Arachidyl Glucoside

Emulsifying

Palmitic Acid

Emollient
2 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon

Allantoin

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Carbomer

Emulsion Stabilising
1 / 0

Tromethamine

Buffering

Illicium Verum Fruit Extract

Perfuming
Fragrance Icon

Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Emulsion Stabilising

Mangifera Indica Seed Butter

Skin Conditioning
Not safe for Fungal Acne Icon

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Emulsion Stabilising

Isohexadecane

Emollient

Persea Gratissima Oil

Skin Conditioning
0-3 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Hydroxyethylcellulose

Emulsion Stabilising

Scutellaria Baicalensis Root Extract

Astringent

Adenosine

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Scar Healing Icon

Polysorbate 80

Emulsifying
0 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon

Disodium EDTA

Hydrogenated Vegetable Oil

Emollient
3 / 0 Oil IconHelps hydrate Dry Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Ceramide NP

Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce irritation IconHelps with Anti-Aging Icon

3-O-Ethyl Ascorbic Acid

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

Sorbitan Oleate

Emulsifying
3 / 0 Bad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Glucose

Humectant
Helps hydrate Dry Skin Icon

Caprylic/Capric Triglyceride

Masking
Helps hydrate Dry Skin Icon

Daucus Carota Sativa Root Extract

Skin Conditioning
Helps reduce irritation Icon

Caprylyl Glycol

Emollient

Sodium Phosphate

Buffering

Pentylene Glycol

Skin Conditioning

Deoxyphytantriyl Palmitamide Mea

Skin Conditioning

Tocopherol

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

Ethylhexylglycerin

Skin Conditioning

Polysorbate 20

Emulsifying
0 / 0 Not safe for Fungal Acne Icon

Cholesterol

Emollient
0 / 0 Helps hydrate Dry Skin Icon

Lecithin

Emollient
Helps hydrate Dry Skin Icon

Phosphatidylcholine

Emulsifying

Acetyl Hexapeptide-8

Humectant
Peptide IconHelps hydrate Dry Skin IconHelps with Anti-Aging Icon

Sh-Oligopeptide-2

Skin Conditioning
Peptide Icon

Sh-Polypeptide-1

Skin Conditioning
Peptide Icon

Astaxanthin

Skin Conditioning
Helps reduce irritation IconHelps with Anti-Aging Icon

Sh-Oligopeptide-1

Skin Conditioning
Peptide IconHelps with Anti-Aging IconGood for Scar Healing 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, Solvent

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. 

It is a:

  • Humectant, drawing moisture into the skin
  • Emollient, helping to soften skin
  • Solvent, dispersing and stabilizing formulas
  • Preservative booster, enhancing the antimicrobial activity of other preservatives 
Humectant, Skin Conditioning

Acetyl Hexapeptide-8, commonly known as Argireline, is a popular peptide in skincare. It’s often referred to as a “Botox-like” ingredient because it helps reduce muscle movement.

By relaxing these micro-movements, Argireline may help minimize the appearance of fine lines and wrinkles. That said, it’s not as powerful as Botox, and research on its long-term effectiveness is still limited.

Beyond smoothing, Argireline may also support collagen production. Collagen is the protein that helps keep your skin firm, bouncy, and well-hydrated by strengthening the skin barrier.

So while Argireline isn’t a miracle fix, it can be a helpful addition to a routine focused on both prevention and skin health.

Read more about other common types of peptides here:

Learn more about Acetyl Hexapeptide-8
Humectant, Masking, Skin Conditioning

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

Learn more about Butylene Glycol
Emulsion Stabilising, Gel Forming

Carbomer is a polymer of acrylic acid. Its main role is to create a gel consistency.

A high amount of carbomer can cause pilling or balling up of products. Don't worry, most products contain 1% or less of carbomer.

Skin Conditioning

Ceramide NP is a type of ceramide.

Ceramides are intercellular lipids naturally found in our skin that bonds dead skin cells together to create a barrier. They are known for their ability to hold water and thus are a great ingredient for dry skin.

Ceramides are an important building block for our skin barrier. A stronger barrier helps the skin look more firm and hydrated. By bolstering the skin ceramides act as a barrier against irritating ingredients. This can help with inflammation as well.

If you would like to eat ceramides, sweet potatoes contain a small amount.

Read more about other common types of ceramides here:
Ceramide AP
Ceramide EOP

Learn more about Ceramide NP
Masking, Solvent

Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.

Dipropylene Glycol helps dissolve and evenly distribute ingredients. It also helps decrease viscosity and thin out texture.

As a masking agent, Dipropylene Glycol can be used to cover the smell of other ingredients. However, it does not have a scent.

Studies show Dipropylene Glycol is considered safe to use in skincare.

Learn more about Dipropylene Glycol
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
Emulsifying, Skin Conditioning

Hydrogenated Lecithin is created from the hydrogenation of lecithin (a group of phospholipids). Hydrogenation is a chemical reaction between hydrogen and another element.

This ingredient is an emollient and emulsifier. As an emollient, it helps soften skin by trapping moisture within. As an emulsifier, it prevents oil and water ingredients from separating.

Emulsion Stabilising, Stabilising

Hydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.

This ingredient helps stabilize products by preventing ingredients from separating. It can also help thicken the texture of a product.

This ingredient can also be found in pill medicines to help our bodies digest other ingredients.

Learn more about Hydroxyethylcellulose
Emollient, Skin Conditioning, Solvent

Isohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum.

Due to its large size, Isohexadecane is not absorbed by the skin. Instead, it sits on top and acts as an emollient. Emollients help keep your skin soft and smooth by trapping moisture within.

Isohexadecane is often used in products designed to help oily skin. It is lightweight and non-greasy while helping to moisturize. When mixed with silicones, it gives a product a silky feel.

Learn more about Isohexadecane
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
Emulsifying

Polysorbate 80 is a surfactant and emulsifier. It is used to keep ingredients together, and prevent oils and waters from separating.

It is made from polyethoxylated sorbitan and oleic acid. This ingredient can be found in cosmetics, foods, and medicine. It is water-soluble.

Polysorbate 80 may not be fungal acne safe.

Learn more about Polysorbate 80

This long ingredient is a copolymer of sodium acrylate and sodium acryloyldimethyl taurate monomers.

It is used to help stabilize other ingredients and create a thicker gel-like texture.

Emulsifiers prevent oils and waters from separating.

Learn more about Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Buffering

We don't have a description for Sodium Phosphate yet.

Emulsifying

Sorbitan Oleate is created from compounds in oleic acid and sorbitol.

It is used to stabilize a product by preventing ingredients from separating. Emulsifiers help keep ingredients together, such as oils and water.

According to a manufacturer, the ingredient Sorbitan Monooleate shares an INCI name with this one.

Sorbitan Oleate may not be fungal acne safe. It can also worsen oily skin.

Learn more about Sorbitan Oleate
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

When to use

21 Routines
43% use in am
57% use in pm
100% use every day
21 Routines
33% use in am
67% use in pm
86% use every day

Reviews

Here's what our community thinks

4.00
Overall rating
5
4
3
2
1
What people say
Hydrating 100% Light 100% No Scent 100%
3.25
Overall rating
5
4
3
2
1
What people say
Absorbs Well 75% Hydrating 50% Doesn't Work 25%