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Skin science article

Eucerin Complete Repair Cream Versus Beauty of Joseon Dynasty Cream

Eucerin Complete Repair Cream Versus Beauty of Joseon Dynasty Cream This barrier-repair moisturizer is formulated around Urea and Ceramide NP to strengthen the skin barrier and hydrate skin. This barrier-repair moisturizer is formulated around Panax Ginseng Ro

Eucerin Complete Repair Cream Versus Beauty of Joseon Dynasty Cream

This barrier-repair moisturizer is formulated around Urea and Ceramide NP 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

Glycerin

Cetearyl Alcohol

Urea

Hydrogenated Coco-Glycerides

Caprylic/Capric Triglyceride

Octyldodecanol

Butyrospermum Parkii Butter

Glyceryl Stearate

Ceramide NP

Lactic Acid

Arginine Hcl

Sodium PCA

Cholesterol

Helianthus Annuus Seed Oil

Alanine

Glycine

Sodium Chloride

Cetyl Dimethicone

Tapioca Starch

Chondrus Crispus

Sodium Cetearyl Sulfate

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Decylene Glycol

Phenoxyethanol

Pentylene Glycol

Water, Glycerin, Cetearyl Alcohol, Urea, Hydrogenated Coco-Glycerides, Caprylic/Capric Triglyceride, Octyldodecanol, Butyrospermum Parkii Butter, Glyceryl Stearate, Ceramide NP, Lactic Acid, Arginine Hcl, Sodium PCA, Cholesterol, Helianthus Annuus Seed Oil, Alanine, Glycine, Sodium Chloride, Cetyl Dimethicone, Tapioca Starch, Chondrus Crispus, Sodium Cetearyl Sulfate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Decylene Glycol, Phenoxyethanol, Pentylene Glycol

Oryza Sativa Bran Water

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

Tromethamine

Carthamus Tinctorius Seed Oil

Hydrogenated Coconut Oil

Glyceryl Acrylate/Acrylic Acid Copolymer

Ethylhexylglycerin

Adenosine

Disodium EDTA

Hyaluronic Acid

Hydrolyzed Hyaluronic Acid

Sodium Hyaluronate

Honey Extract

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

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.

Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products.

As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied.

It can also form a thin protective film on skin. One study found that a formula using this polymer helped slow down how quickly other ingredients (like DEET) were absorbed through skin.

A 2024 study of over 1,300 patients confirmed that sensitization to this ingredient is rare. It is also non-mutagenic and has a clean track record.

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.

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.

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!

Similar Comparisons

The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

01

Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Explained

  1. 01These ingredients are found in both products.
  2. 02Ingredients higher up in an ingredient list are typically present in a larger amount.
  3. 031,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
  4. 04It is a:
  5. 05Humectant, drawing moisture into the skin
  6. 06Emollient, helping to soften skin
  7. 07Solvent, dispersing and stabilizing formulas
  8. 08Preservative booster, enhancing the antimicrobial activity of other preservatives
  9. 09Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
  10. 10This ingredient mainly works behind the scenes and helps with:
  11. 11On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
  12. 12One 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 st…
  13. 13Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
  14. 14You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
  15. 15Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.
  16. 16And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.
  17. 17You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.
  18. 18In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.
  19. 19If 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.
  20. 20When 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.
Source · skinsort.com
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Product index

Related product references

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Comparison edit

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