Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Eucerin Complete Repair Cream Versus Beauty of Joseon Dynasty Cream

Eucerin Complete Repair Cream Versus Beauty of Joseon Dynasty Cream Detailed comparison of 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 bar

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Eucerin Complete Repair Cream Versus Beauty of Joseon Dynasty Cream Detailed comparison of 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. 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 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), o