Skin science article
Holika Holika Good Cera Super Cream Versus Beauty of Joseon Dynasty Cream
Holika Holika Good Cera Super Cream Versus Beauty of Joseon Dynasty Cream This barrier-repair day moisturizer is formulated around Ceramide NP and Ceramide AP to strengthen the skin barrier and hydrate skin. This barrier-repair moisturizer is formulated around
Holika Holika Good Cera Super Cream Versus Beauty of Joseon Dynasty Cream
This barrier-repair day moisturizer is formulated around Ceramide NP and Ceramide AP to strengthen the skin barrier and hydrate skin.
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
Water
Butylene Glycol
Glycerin
Cyclopentasiloxane
Butylene Glycol Dicaprylate/Dicaprate
Ethylhexyl Isononanoate
Hydrogenated Polyisobutene
Glyceryl Stearate
1,2-Hexanediol
Cetearyl Alcohol
Stearic Acid
Polysorbate 60
Polyglyceryl-3 Methylglucose Distearate
Pentaerythrityl Tetraethylhexanoate
Stearyl Behenate
Dimethicone
Dimethicone/Vinyl Dimethicone Crosspolymer
Cetearyl Glucoside
Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate
Ceramide NP
Hydrogenated Polydecene
Butyrospermum Parkii Butter
Ceteareth-20
Glyceryl Citrate/Lactate/Linoleate/Oleate
Hydroxypropyl Bispalmitamide Mea
Glycosphingolipids
Ceramide AP
Meadowfoam Estolide
Glycine Soja Sterols
Caprylic/Capric Triglyceride
Ceramide EOP
Glyceryl Polymethacrylate
Aleuritic Acid
Yeast Extract
Glycoproteins
Betaine
Sodium Hyaluronate
Polyquaternium-51
Cocos Nucifera Oil
Aloe Barbadensis Leaf Extract
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Squalane
Carbomer
Tromethamine
Tocopheryl Acetate
Glycerylamidoethyl Methacrylate/Stearyl Methacrylate Copolymer
Alteromonas Ferment Extract
Bacillus Ferment
Propylene Glycol
Theobroma Cacao Seed Extract
Dipropylene Glycol
Lavandula Angustifolia Oil
Citrus Grandis Peel Oil
Cymbopogon Citratus Leaf Oil
Pelargonium Graveolens Oil
Citrus Aurantium Dulcis Peel Oil
Pogostemon Cablin Leaf Oil
Santalum Album Oil
Chamomilla Recutita Flower Oil
Niacinamide
Allantoin
Disodium EDTA
Ethylhexylglycerin
Water, Butylene Glycol, Glycerin, Cyclopentasiloxane, Butylene Glycol Dicaprylate/Dicaprate, Ethylhexyl Isononanoate, Hydrogenated Polyisobutene, Glyceryl Stearate, 1,2-Hexanediol, Cetearyl Alcohol, Stearic Acid, Polysorbate 60, Polyglyceryl-3 Methylglucose Distearate, Pentaerythrityl Tetraethylhexanoate, Stearyl Behenate, Dimethicone, Dimethicone/Vinyl Dimethicone Crosspolymer, Cetearyl Glucoside, Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate, Ceramide NP, Hydrogenated Polydecene, Butyrospermum Parkii Butter, Ceteareth-20, Glyceryl Citrate/Lactate/Linoleate/Oleate, Hydroxypropyl Bispalmitamide Mea, Glycosphingolipids, Ceramide AP, Meadowfoam Estolide, Glycine Soja Sterols, Caprylic/Capric Triglyceride, Ceramide EOP, Glyceryl Polymethacrylate, Aleuritic Acid, Yeast Extract, Glycoproteins, Betaine, Sodium Hyaluronate, Polyquaternium-51, Cocos Nucifera Oil, Aloe Barbadensis Leaf Extract, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Squalane, Carbomer, Tromethamine, Tocopheryl Acetate, Glycerylamidoethyl Methacrylate/Stearyl Methacrylate Copolymer, Alteromonas Ferment Extract, Bacillus Ferment, Propylene Glycol, Theobroma Cacao Seed Extract, Dipropylene Glycol, Lavandula Angustifolia Oil, Citrus Grandis Peel Oil, Cymbopogon Citratus Leaf Oil, Pelargonium Graveolens Oil, Citrus Aurantium Dulcis Peel Oil, Pogostemon Cablin Leaf Oil, Santalum Album Oil, Chamomilla Recutita Flower Oil, Niacinamide, Allantoin, Disodium EDTA, Ethylhexylglycerin
Oryza Sativa Bran Water
Panax Ginseng Root Water
Propanediol
Propylene Glycol Dicaprylate/Dicaprate
Cetearyl Olivate
Sorbitan Olivate
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Xanthan Gum
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Carthamus Tinctorius Seed Oil
Hydrogenated Coconut Oil
Glyceryl Acrylate/Acrylic Acid Copolymer
Adenosine
Hyaluronic Acid
Hydrolyzed Hyaluronic Acid
Honey Extract
Hydrogenated Lecithin
Coptis Japonica Root Extract
Raphanus Sativus Seed Extract
Lycium Chinense Fruit 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
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.
Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss.
Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid.
In practice, that translates to a long shelf life and a consistently elegant skin feel.
While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns.
Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source.
This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out.
This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%.
Ceramide NP (formerly known as Ceramide 3) is one of the skin's naturally occurring lipids.
Since ceramides are the major lipid components of the skin, they are crucial for maintaining skin barrier and hydration. Ceramide NP most closely mirrors the dominant kind in human skin amongst ceramide subtypes.
This ceramide works by slotting into gaps within the stratum corneum's lipid matrix to limit trans-epidermal water loss (TEWL) and shield the skin against external irritants.
A study with 312 patients found that using a ceramide-containing routine for 4 weeks reduced the severity of atopic dermatitis by over 61%.
Another clinical study in subjects aged 60 and older found that a ceramide body wash and moisturizer improved skin dryness and itchy skin in 15 days.
Overall, ceramides are considered non-irritating and safety tests have found little to no observable adverse effects from using this ingredient.
Ceramide NP is usually sourced from plants (like soybean or rice bran), or produced synthetically.
Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
This ingredient mainly works behind the scenes and helps with:
On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).
Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
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 Polydecene is a synthetic emollient. It forms a non-occlusive film on the skin's surface to provide a silky feel without being greasy.
In vivo studies in volunteers with atopic and dry skin showed no irritation or intolerance. The volunteers also saw a positive effect in dryness, scaling, and roughness after 28 days of use.
Concentrations up to 100% in guinea pig tests found it to be non-sensitizing and completely safe for use in cosmetics.
Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.
And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.
You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.
In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.
If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.
In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).
Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.
Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.
The type of niacinamide used in skincare is synthetically created.
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.
Squalane is the hydrogenated and shelf-stable form of squalene (a lipid that naturally occurs in human sebum).
It is an emollient and skin conditioning agent that is able to integrate seamlessly into the skin's lipid barrier without clogging pores.
This is due to how structurally similar it is to what your skin already produces.
Though it is mostly an emollient that helps soften and hydrate skin, it also has some humectant and occlusive action. Humectants help the skin retain moisture while occlusives seal it in, making squalane a triple-threat moisturizer.
Research shows it has antioxidant capabilities that help protect against stressors like UV exposure, specifically UVA induced oxidative stress. This study also found that it supports collagen biosynthesis in human dermal fibroblasts.
No clinical study has reported significant adverse effects and irritation reactions are very rare from this ingredient (even at 100% concentration).
Overall, it's a fantastic ingredient for hydration and is suitable for all skin types.
This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants.
Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane.
Read more about squalene with an "e".
Though squalane is often called an oil, it’s technically not one. It is a hydrocarbon, meaning it is only made of carbon and hydrogen. True oils are triglycerides and made of fatty acids and glycerol.
The term “oil-free” isn’t regulated so companies can define it however they want. Some exclude all oils, while others just avoid mineral oil or comedogenic oils.
Squalane has a comedogenic rating of 1 from the original 1972 study that tested raw ingredients under occlusion on rabbit ears. This system is not standardized or peer-reviewed, and using the raw ingredients is very different from how diluted cosmetic formulations are used on human skin.
A comedogenic rating of 1 means it is "unlikely to clog pores" according to the original rating system.
The overall formula of a product matters more than the individual ingredients on whether or not it will cause clogged pores.
Theobroma Cacao Seed Extract comes from the Theobroma cacoa, or Cacao tree. Cacao trees are native to tropical landscapes.
Cacao seed extract contains antioxidants known as polyphenols.
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!