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

Glycerin

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

Xanthan Gum

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

Butylene Glycol

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

Sodium Citrate

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

Disodium EDTA

Disodium EDTA plays a role in making products more stable by aiding other preservatives.

It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.

Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.

Learn more about Disodium EDTA

Ethylhexylglycerin

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.

Ingredient Ratings

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

When to use

SkinMedica TNS® Advanced+ Serum 35 ingredients

Beauty of Joseon Red Bean Water Gel 56 ingredients

138 Routines

48% use in am

52% use in pm

94% use every day

When to use See routines that use it ->

1,116 Routines

56% use in am

44% use in pm

96% use every day

When to use See routines that use it ->

Reviews

Here's what our community thinks

SkinMedica TNS® Advanced+ Serum 35 ingredients

2.7 /5

from 3 ratings

Broke Me Out (1) Expensive (1) Light Scent (1)

yyyydddd

2 months ago

Review

Upon first try, I liked the glowy dewy effect it gave under my moisturizer and sunscreen. However, I can't help but notice that it pills quite badly. It wasn't returnable so I forced myself to use it and oh boy... If comedones popping up everywhere around my cheekbones and forehead by the first week wasn't bad enough, the pump started malfunction very soon. Actually baffling how popular this Show more

#broke me out

#pilling

#light scent

SkinMedica

TNS® Advanced+ Serum

Srr1111

1 year ago

Review

Keeps my skin youthful

SkinMedica

TNS® Advanced+ Serum

Beauty of Joseon Red Bean Water Gel 56 ingredients

3.3 /5

from 39 ratings

Absorbs Well (18) Light (17) Hydrating (13)

enecr

1 year ago

Review

My combination-to-oily skin loved this water gel moisturizer. It's so lightweight and moisturizes well enough for morning use. It doesn't do anything else, but it is unlikely to irritate sensitive skin, either. It is somewhat expensive in my country. So, I will repurchase if I cannot find a cheaper and similar moisturizer, but it has become my favorite one so far.

#hydrating

#light

#absorbs well

#no scent