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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Dear, Klairs Fundamental Watery Oil Drop versus Isntree TW-Real Bifida Ampoule .

Last updated on September 19, 2023. Published on September 18, 2021

Overview

What they are

These products are both vegan, cruelty-free, and reef safe . They have a total of 10 ingredients in common

Cool Features

They both contain hyaluronic acid and peptides

Suited For

They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, reducing pores and dark spots

Free From

They both do not contain any harsh alcohols, common allergens, oils, parabens, silicones 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 need an update? Let us know.

Serum South Korean Brand South Korea
Ampoule South Korean Brand South Korea

Serum

Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.

Ampoule

Ampoules are created to target one area of concern. They are usually highly concentrated with active or beneficial ingredients.

Price

Shop

Buy Fundamental Watery Oil Drop

Starts at $20.15
Shop

Buy TW-Real Bifida Ampoule

Starts at $20.40

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

At a glance

Click on any of the items below to learn more

Notable Ingredients

Vitamin E
Exfoliators
Ceramides
Hyaluronic Acid
Peptides (2)

Benefits

Hydrating (4)
Redness Reducing (4)
Reduces Irritation (4)
Reduces Large Pores
Anti-Aging (3)
Dark Spots (2)
Acne Fighting
Brightening (2)

Concerns

Acne Trigger

Notable Ingredients

Niacinamide
Hyaluronic Acid
Peptides (3)

Benefits

Hydrating (2)
Good For Oily Skin (2)
Redness Reducing (3)
Reduces Irritation (2)
Reduces Large Pores
Anti-Aging (3)
Dark Spots (2)
Scar Healing (2)
Acne Fighting
Brightening (2)
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Ingredients Compared

Ingredients that are highlighted in purple are present in both products.

Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

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Ingredients Explained

These ingredients are found in both products.

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

1
What it does: Humectant, Skin Conditioning, Skin Protecting, Solvent
Community Rating: Loved

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

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 2.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 4.

2
What it does: Humectant, Masking, Skin Conditioning, Solvent
Community Rating: Mixed

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

  • It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
  • It is a humectant, which means that it helps attract moisture into the skin.
  • It helps improve product application.

Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 3.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 24.

3
What it does: Masking, Solvent
Community Rating: Disliked

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

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 8.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 2.

4
What it does: Skin Conditioning, Solvent
Community Rating: Mixed

1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.

In products that are water-based, this ingredient can help stabilize perfumes and fragrances. It can also help make the texture of products softer and more smooth.

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 10.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 28.

5
What it does: Humectant, Skin Conditioning
Community Rating: Loved

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.

Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.

These are some other common types of Hyaluronic Acid:

Learn more about Sodium Hyaluronate

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 17.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 8.

6
What it does: Emulsion Stabilising, Stabilising
Community Rating: Mixed

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.

Hydroxyethylcellulose 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

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 18.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 20.

7
What it does: Masking, Skin Conditioning
Community Rating: Mixed

Arginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.

As a cosmetic ingredient, Arginine has antioxidant properties and can also help repair damaged skin. This ingredient is derived either synthetically or from animals.

Arginine isn't fungal acne safe when used in the presence of other lipids (fats, fatty acids, oils, esters, etc). Oils and fats occur naturally within the skin, so take caution when using Arginine if you're prone to fungal acne.

Learn more about Arginine

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 20.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 23.

8
What it does: Emulsion Stabilising, Gel Forming
Community Rating: Disliked

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

Carbomer is commonly found in many types of cosmetics products. It is found to be safe in concentrations up to 15%. However, a high amount of carbomer can cause pilling or balling up of products. Most products contain 1% of less of carbomer.

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 21.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 22.

9
What it does: Skin Conditioning
Community Rating: Loved

Copper Tripeptide-1 is a peptide naturally found in body fluids. Peptides are building blocks for protein.

Studies show this ingredient tells our body to create more collagen and elastin. Collagen is a protein that makes connective tissue. Elastin is the protein responsible for giving our skin elasticity. Our bodies start to slow down collagen and elastin production with age.

Boosting collagen and elastin production can help create a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin. It's a win-win situation!

Studies show this ingredient can help with scar healing. This is because it breaks down damaged collagen, the main component of scar tissue. It may also help with reducing sunspots, acne scars, and uneven skin tone.

This ingredient is also an antioxidant. Antioxidants help the body fight off free-radicals. Free radicals are molecules that damage our cells, such as pollution and tobacco smoke.

More benefits: Copper Tripeptide-1 helps maintain tissues in blood vessels and promote natural hyaluronic acid in skin.

Read more about other common types of peptides here:

Learn more about Copper Tripeptide-1

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 27.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 17.

10
What it does: Humectant, Skin Conditioning
Community Rating: Loved

Acetyl Hexapeptide-8 is a peptide. A common name for this peptide is Argireline.

Argireline has a similar function to botox. It prevents muscle movement and contractions. By preventing muscles from moving, Argireline also prohibits the formation of fine lines and wrinkles. However, research is lacking in proving this ingredient to be as effective as botox.

Argireline tells our body to create more collagen. Collagen is a protein that makes connective tissue. Boosting collagen production leads to a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin.

Read more about other common types of peptides here:

Learn more about Acetyl Hexapeptide-8

Dear, Klairs Fundamental Watery Oil Drop contains this as ingredient number 28.

Isntree TW-Real Bifida Ampoule contains this as ingredient number 18.

Here's what our community thinks of the ingredients in these two products.

54% are loved or liked
25% have mixed ratings
21% are disliked or very disliked
0% have no rating yet
62% are loved or liked
17% have mixed ratings
10% are disliked or very disliked
10% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Reviews

Here's what our community thinks

Dear, Klairs Fundamental Watery Oil Drop 28 ingredients

4.7 /5
from 3 ratings
Absorbs Well (1) Expensive (1) Hydrating (1) Light (1) No Scent (1) Works Well (1)
ChantelleAng's avatar

ChantelleAng

4 months ago · Combination Skin
Review

repeated purchase!! hydrates my skin well not oily

Isntree TW-Real Bifida Ampoule 29 ingredients

5.0 /5
from 1 rating
Marifsts's avatar

Marifsts

8 months ago · Combination Skin
Review

Worthy a lot
I'm using as a dupe to Lancome Gentifique serum and I love it, my skin is soft and feels healthier, I can describe, but is a perfect dupe

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