Skin science article
BYOMA Brightening Serum Versus Beauty of Joseon Calming Serum: Green Tea + Panthenol
BYOMA Brightening Serum Versus Beauty of Joseon Calming Serum: Green Tea + Panthenol This brightening serum is formulated around Niacinamide and Ceramide NP to brighten dull-looking skin and strengthen the skin barrier. This calming serum is formulated around
BYOMA Brightening Serum Versus Beauty of Joseon Calming Serum: Green Tea + Panthenol
This brightening serum is formulated around Niacinamide and Ceramide NP to brighten dull-looking skin and strengthen the skin barrier.
This calming serum is formulated around Panthenol and Dipotassium Glycyrrhizate to calm redness and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Methylpropanediol
Niacinamide
1,2-Hexanediol
Glycerin
Polyglyceryl-10 Laurate
Sodium Hyaluronate
Ceramide NP
Cholesterol
Caprylic/Capric Triglyceride
Phytosphingosine
Sodium Phytate
Ascorbic Acid
Stearic Acid
Oleic Acid
Hydrogenated Lecithin
Ethylhexylglycerin
Xanthan Gum
Squalane
Tocopherol
Lactic Acid
Carbomer
Tromethamine
Caprylyl Glycol
Caprylhydroxamic Acid
Water, Methylpropanediol, Niacinamide, 1,2-Hexanediol, Glycerin, Polyglyceryl-10 Laurate, Sodium Hyaluronate, Ceramide NP, Cholesterol, Caprylic/Capric Triglyceride, Phytosphingosine, Sodium Phytate, Ascorbic Acid, Stearic Acid, Oleic Acid, Hydrogenated Lecithin, Ethylhexylglycerin, Xanthan Gum, Squalane, Tocopherol, Lactic Acid, Carbomer, Tromethamine, Caprylyl Glycol, Caprylhydroxamic Acid
Panthenol
Butylene Glycol
Camellia Sinensis Leaf Water
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Betaine
Allantoin
Dipotassium Glycyrrhizate
Artemisia Capillaris Extract
Glyceryl Acrylate/Acrylic Acid Copolymer
Melia Azadirachta Leaf Extract
Polyquaternium-51
Malt Extract
Melia Azadirachta Flower Extract
Coptis Japonica Root Extract
Water, Panthenol, Glycerin, Butylene Glycol, 1,2-Hexanediol, Methylpropanediol, Camellia Sinensis Leaf Water, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Betaine, Ethylhexylglycerin, Allantoin, Dipotassium Glycyrrhizate, Artemisia Capillaris Extract, Glyceryl Acrylate/Acrylic Acid Copolymer, Melia Azadirachta Leaf Extract, Polyquaternium-51, Malt Extract, Melia Azadirachta Flower Extract, Coptis Japonica Root Extract, Sodium Hyaluronate
Reviews
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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
Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Methylpropanediol is a synthetic solvent and humectant.
As a solvent, it helps dissolve other ingredients, helping to evenly distribute ingredients throughout the product. This ingredient has also been shown to have antimicrobial properties which makes it a preservative booster.
Methylpropanediol is able to add a bit of moisture to the skin. It also helps other ingredients be better absorbed into the skin, such as salicylic acid.
Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
Tromethamine (aka THAM) is a synthetic amino acid that shows up in skincare as a helper ingredient.
It functions as a pH adjuster to help neutralize acidic ingredients and set a formula's pH to the right spot.
This matters a lot because a lot of actives (like vitamin C) needs a specific pH to work well and feel comfortable on skin.
Concentration use ranges from 0.1-1.0% depending on the formula.
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. Remember to stay hydrated!