Skin science article
Beauty of Joseon Light On Serum : Centella + Vita C Versus Beauty of Joseon Dynasty Cream
Beauty of Joseon Light On Serum : Centella + Vita C Versus Beauty of Joseon Dynasty Cream This brightening serum is formulated around Centella Asiatica Extract and 3-O-Ethyl Ascorbic Acid to brighten dull-looking skin and calm redness. This barrier-repair mois
Beauty of Joseon Light On Serum : Centella + Vita C Versus Beauty of Joseon Dynasty Cream
This brightening serum is formulated around Centella Asiatica Extract and 3-O-Ethyl Ascorbic Acid to brighten dull-looking skin and calm redness.
This barrier-repair moisturizer is formulated around Panax Ginseng Root Water and Niacinamide to strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Centella Asiatica Extract
3-O-Ethyl Ascorbic Acid
Glycerin
Propanediol
Betaine
Dicaprylyl Carbonate
Methyl Trimethicone
Cetyl Ethylhexanoate
Panthenol
Laminaria Japonica Extract
Eclipta Prostrata Leaf Extract
Phellodendron Amurense Bark Extract
Citrus Unshiu Peel Extract
Brassica Oleracea Acephala Leaf Extract
Hydrolyzed Gardenia Florida Extract
Hydrogenated Lecithin
Cetearyl Alcohol
Water
Dimethicone/Vinyl Dimethicone Crosspolymer
Silica
Bisabolol
Potassium Cetyl Phosphate
Hydrolyzed Jojoba Esters
Cetearyl Olivate
Sorbitan Olivate
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer
Xanthan Gum
Polyglyceryl-10 Myristate
Adenosine
Fructooligosaccharides
Beta-Glucan
Butylene Glycol
Sorbitan Isostearate
Hydrolyzed Hyaluronic Acid
Maltodextrin
Arginine
Carbomer
Ascorbic Acid Polypeptide
1,2-Hexanediol
Hydroxyacetophenone
Ethylhexylglycerin
Centella Asiatica Extract, 3-O-Ethyl Ascorbic Acid, Glycerin, Propanediol, Betaine, Dicaprylyl Carbonate, Methyl Trimethicone, Cetyl Ethylhexanoate, Panthenol, Laminaria Japonica Extract, Eclipta Prostrata Leaf Extract, Phellodendron Amurense Bark Extract, Citrus Unshiu Peel Extract, Brassica Oleracea Acephala Leaf Extract, Hydrolyzed Gardenia Florida Extract, Hydrogenated Lecithin, Cetearyl Alcohol, Water, Dimethicone/Vinyl Dimethicone Crosspolymer, Silica, Bisabolol, Potassium Cetyl Phosphate, Hydrolyzed Jojoba Esters, Cetearyl Olivate, Sorbitan Olivate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Xanthan Gum, Polyglyceryl-10 Myristate, Adenosine, Fructooligosaccharides, Beta-Glucan, Butylene Glycol, Sorbitan Isostearate, Hydrolyzed Hyaluronic Acid, Maltodextrin, Arginine, Carbomer, Ascorbic Acid Polypeptide, 1,2-Hexanediol, Hydroxyacetophenone, Ethylhexylglycerin
Oryza Sativa Bran Water
Panax Ginseng Root Water
Hydrogenated Polydecene
Niacinamide
Squalane
Propylene Glycol Dicaprylate/Dicaprate
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Tromethamine
Carthamus Tinctorius Seed Oil
Hydrogenated Coconut Oil
Glyceryl Acrylate/Acrylic Acid Copolymer
Caprylic/Capric Triglyceride
Disodium EDTA
Hyaluronic Acid
Sodium Hyaluronate
Honey Extract
Ceramide NP
Coptis Japonica Root Extract
Raphanus Sativus Seed Extract
Lycium Chinense Fruit Extract
Theobroma Cacao Seed Extract
Phellinus Linteus Extract
Dextrin
Scutellaria Baicalensis Root Extract
Water, Oryza Sativa Bran Water, Glycerin, Panax Ginseng Root Water, Hydrogenated Polydecene, 1,2-Hexanediol, Niacinamide, Squalane, Butylene Glycol, Propanediol, Propylene Glycol Dicaprylate/Dicaprate, Cetearyl Olivate, Sorbitan Olivate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Carthamus Tinctorius Seed Oil, Hydrogenated Coconut Oil, Glyceryl Acrylate/Acrylic Acid Copolymer, Ethylhexylglycerin, Adenosine, Caprylic/Capric Triglyceride, Disodium EDTA, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Honey Extract, Ceramide NP, Hydrogenated Lecithin, Coptis Japonica Root Extract, Raphanus Sativus Seed Extract, Lycium Chinense Fruit Extract, Theobroma Cacao Seed Extract, Phellinus Linteus Extract, Dextrin, Scutellaria Baicalensis Root Extract
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
Adenosine is a purine nucleoside that your body already makes in every cell. In skincare, it acts mainly as a skin conditioning and anti-aging agent.
The way it works is fairly well mapped out:
Your skin has cells called fibroblasts that build collagen (the stuff that keeps skin firm and smooth). Adenosine basically flips a switch on these cells that tells them to get to work making more collagen and other proteins. These cells slow down on their own as skin ages, so Adenosine helps give them a little nudge to keep going.
The clinical backing is pretty solid too.
A blind, randomized, placebo-controlled trial of 126 women aged 45-65 tested a 0.1% cream twice daily and found real improvements in crow's feet and frown lines using a precise 3D skin-mapping technique; these changes showed up by week 3 and held at 2 months.
A later study using Adenosine-loaded dissolving microneedle patches reported gains in wrinkle depth, dermal density, elasticity, and hydration.
On concentrations, South Korea's Ministry of Food and Drug Safety has set 0.04% as the approved functional anti-wrinkle level. You'll typically see this ingredient used somewhere in the 0.04-0.1% range since it works at low doses.
This ingredient has been found safe for cosmetics with the data showing no irritation or sensitization.
Overall, this is a great ingredient for any anti-aging routine and has no photosensitizing effect, so it suits both AM and PM use.
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.
Cetearyl Olivate is a plant-derived emulsifier and texture enhancer. It helps keep the oil and water phases from separating so your formulas stay stable.
You'll likely see it combined with Sorbitan Olivate (together sold as the trade name Olivem 1000). This combination generates a liquid crystal structure that closely resemble the lipid organization of the stratum corneum.
These "skin-like" liquid crystals improve skin barrier integrity and promote the delivery of actives into the skin.
This ingredient is well-tolerated and has no significant sensitization data.
Because it is derived from the fatty acids in olive oil, this ingredient may not be fungal acne safe.
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.
Hydrogenated Lecithin is a more stable version of lecithin.
It's made by taking lecithin (a phospholipid commonly found in soybeans and egg yolks) and hydrogenating it. This just means the unsaturated fatty acids are turned into saturated ones so they don't go bad as easily.
This ingredient is an emollient, emulsifier, and penetration enhancer. As an emollient, it helps soften and hydrate skin by trapping moisture within. As an emulsifier, it prevents oil and water ingredients from separating.
Hydrogenated Lecithin can form tiny spherical structures made of phospholipid bilayers called liposomes. These liposomes are able to capture compounds inside their structure and deliver them through the skin barrier.
Because phospholipids are a natural component of our cell membranes, this ingredient is inherently compatible with skin.
A 2021 study found lecithin-based surfactants were less harsh and more tolerable comared to Sodium Lauryl Sulfate (SLS).
Hydrolyzed Hyaluronic Acid is hyaluronic acid (HA) that is broken down into lower molecular weight fragments.
It's a humectant that pulls and holds water in the skin to help with hydration, plumpness, and reduce transepidermal water loss.
Because hydrolyzed hyaluronic acid is smaller in size, it can slip past your outermost layer of skin more easily than full-sized HA.
Most formulations will combine all sizes to get the best of both worlds.
Typical usage levels range from 0.01-1%. Any percentage higher than 2% might become goopy and tacky.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Sorbitan Olivate is created from the fatty acids in olive oil and sorbitol.
This ingredient is an oil in water emulsifier. It helps stabilize a product by preventing oils and waters from separating. Sorbitan Olivate also helps hydrate the skin.
This ingredient is also known as part of Olivem 1000, with Cetearyl Olivate being the other part.
According to a manufacturer, this ingredient helps preserve the natural microbiome of skin. Having a healthy microbiome helps keep our skin healthy and protects against harmful bacteria.
Please note, having a healthy microbiome is different from fungal acne; a healthy microbiome includes small amounts of yeast that normally live on your skin without causing problems.
Fungal acne happens when one type of yeast (Malassezia) grows out of control. This is usually because it's feeding on certain oils or fatty acids. Due to the olive oil base, this ingredient may not be fungal acne safe.
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!
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.