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Beauty of Joseon Dynasty Cream (Old Formulation) Versus Kiehl's Ultra Facial Cream with Squalane

Beauty of Joseon Dynasty Cream (Old Formulation) Versus Kiehl's Ultra Facial Cream with Squalane This barrier-repair moisturizer is formulated around Niacinamide and Adenosine to strengthen the skin barrier and hydrate skin. This barrier-repair moisturizer is

Beauty of Joseon Dynasty Cream (Old Formulation) Versus Kiehl's Ultra Facial Cream with Squalane

This barrier-repair moisturizer is formulated around Niacinamide and Adenosine to strengthen the skin barrier and hydrate skin.

This barrier-repair moisturizer is formulated around Squalane and Pseudoalteromonas Ferment Extract to strengthen the skin barrier and hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Butylene Glycol

Niacinamide

Dipentaerythrityl Hexa C5-9 Acid Esters

Sodium Hyaluronate

Xanthan Gum

Cyclopentasiloxane

Cyclohexasiloxane

Polyacrylate-13

Polyisobutene

Polysorbate 20

Hydrogenated Lecithin

C14-28 Alkyl Acid

Stearyl Alcohol

Behenyl Alcohol

Dimethicone/Vinyl Dimethicone Crosspolymer

Dimethicone

Adenosine

Glyceryl Stearate Se

Cetearyl Alcohol

Polyglyceryl-3 Methylglucose Distearate

Cetyl PEG/PPG-10/1 Dimethicone

Stearic Acid

Tocopheryl Acetate

Sodium Polyacrylate

Olea Europaea Fruit Oil

Helianthus Annuus Seed Oil

Centella Asiatica Extract

Hippophae Rhamnoides Oil

Argania Spinosa Kernel Oil

Butyrospermum Parkii Butter

Ceramide NP

Trehalose

Calendula Officinalis Flower Extract

Caprylhydroxamic Acid

1,2-Hexanediol

Raphanus Sativus Leaf Extract

Oryza Sativa Bran Extract

Cucurbitaceae Extract

Orchid Extract

Honey Extract

Panax Ginseng Root Extract

Carthamus Tinctorius Seed Oil

Phytosphingosine

Ceteareth-20

Glyceryl Citrate/Lactate/Linoleate/Oleate

Parfum

Water, Glycerin, Butylene Glycol, Niacinamide, Dipentaerythrityl Hexa C5-9 Acid Esters, Sodium Hyaluronate, Xanthan Gum, Cyclopentasiloxane, Cyclohexasiloxane, Polyacrylate-13, Polyisobutene, Polysorbate 20, Hydrogenated Lecithin, C14-28 Alkyl Acid, Stearyl Alcohol, Behenyl Alcohol, Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethicone, Adenosine, Glyceryl Stearate Se, Cetearyl Alcohol, Polyglyceryl-3 Methylglucose Distearate, Cetyl PEG/PPG-10/1 Dimethicone, Stearic Acid, Tocopheryl Acetate, Sodium Polyacrylate, Olea Europaea Fruit Oil, Helianthus Annuus Seed Oil, Centella Asiatica Extract, Hippophae Rhamnoides Oil, Argania Spinosa Kernel Oil, Butyrospermum Parkii Butter, Ceramide NP, Trehalose, Calendula Officinalis Flower Extract, Caprylhydroxamic Acid, 1,2-Hexanediol, Raphanus Sativus Leaf Extract, Oryza Sativa Bran Extract, Cucurbitaceae Extract, Orchid Extract, Honey Extract, Panax Ginseng Root Extract, Carthamus Tinctorius Seed Oil, Phytosphingosine, Ceteareth-20, Glyceryl Citrate/Lactate/Linoleate/Oleate, Parfum

Squalane

Bis-PEG-18 Methyl Ether Dimethyl Silane

Sucrose Stearate

PEG-8 Stearate

Myristyl Myristate

Prunus Armeniaca Kernel Oil

Phenoxyethanol

Persea Gratissima Oil

Glyceryl Stearate

Cetyl Alcohol

Oryza Sativa Bran Oil

Chlorphenesin

Palmitic Acid

Carbomer

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Trisodium Ethylenediamine Disuccinate

Prunus Amygdalus Dulcis Oil

Ethylhexylglycerin

Sodium Hydroxide

Tocopherol

Glycine Soja Oil

Pseudoalteromonas Ferment Extract

Myristic Acid

Hydroxypalmitoyl Sphinganine

Salicylic Acid

Rosmarinus Officinalis Leaf Extract

Citric Acid

Water, Glycerin, Dimethicone, Squalane, Bis-PEG-18 Methyl Ether Dimethyl Silane, Sucrose Stearate, Stearyl Alcohol, PEG-8 Stearate, Myristyl Myristate, Prunus Armeniaca Kernel Oil, Phenoxyethanol, Persea Gratissima Oil, Glyceryl Stearate, Cetyl Alcohol, Oryza Sativa Bran Oil, Olea Europaea Fruit Oil, Chlorphenesin, Stearic Acid, Palmitic Acid, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Trisodium Ethylenediamine Disuccinate, Prunus Amygdalus Dulcis Oil, Xanthan Gum, Ethylhexylglycerin, Sodium Hydroxide, Tocopherol, Glycine Soja Oil, Pseudoalteromonas Ferment Extract, Myristic Acid, Hydroxypalmitoyl Sphinganine, Salicylic Acid, Helianthus Annuus Seed Oil, Rosmarinus Officinalis Leaf Extract, Citric Acid

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Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane.

What it does:

Dimethicone comes in different viscosities:

Depending on the viscosity, dimethicone has different properties.

Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.

This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.

Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.

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.

Helianthus Annuus Seed Oil is a plant oil derived from the seeds of a sunflower.

It is rich in fatty acids, primarily linoleic acid and oleic acid. This gives it emollient and skin conditioning properties.

The reason this ingredient is so effective is because it forms a thin film on the skin that reduces transepidermal water loss (TEWL) while supplying linoleic acid to the stratum corneum to improve barrier strength.

The high linoleic acid content is particularly noteworthy for acne-prone skin.

Research suggests that acne-prone skin tends to be deficient in linoleic acid in sebum. Topical application may help replenish this to support a healthier follicular environment and less comedone-promoting sebum.

One randomized study found sunflower seed oil preserved skin barrier integrity in adult volunteers with and without atopic dermatitis (outperforming olive oil).

This ingredient is well-studied, gentle, and an effective emollient suitable for most skin types.

On fungal acne: This ingredient may not be Fungal acne (Malassezia folliculitis) safe. This is because it contains fatty acids with carbon chain lengths in the C11-C24 range.

This ingredient is also known as olive oil. It has been used in skincare for centuries and science largely backs up its reputation as a nourishing emollient.

The main components of olive oil are oleic acid (55-83%), linoleic acid (3.5-20%), and palmitic acid (7-20%). Oleic acid promotes skin regeneration and helps regulate inflammatory responses.

Squalene is also naturally present in olive oil and exhibits moisturizing and antioxidant properties.

The polyphenols in olive oil also show anti-aging promise; one clinical study found a measurable improvement in skin appearance after 30 days of topical serum use.

Just be aware that applying olive oil directly to skin can weaken the barrier and cause redness. One study with volunteers found even people without sensitive skin experienced a significant reduction in stratum corneum integrity and induced mild erythema.

It's best to use this ingredient as part of a carefully crafted formula (instead of putting it on skin directly from the bottle).

Because it has a 2-3 on the comedogenic scale, it is a moderate risk for acne-prone skin. However, the overall formulation of a product matters more than a few ingredients with comedogenic ratings.

This ingredient may not be fungal acne safe because of the oleic and palmitic acid content. These fall within the C11-24 fatty acid range that the Malassezia yeast can metabolize to grow.

Overall, olive oil is a well-studied and nourishing skincare ingredient.

Stearic Acid is a fatty acid that is already found in your skin. It's one of the free fatty acids that works alongside ceramides and cholesterols to maintain your barrier.

In cosmetics, it is a multitasker:

Safety-wise, the CIR Expert Panel has concluded it to be safe in cosmetics when formulated to be non-irritating and non-sensitizing.

Free stearic acid is a C18 fatty acid that the Malassezia yeast can substrate, so this ingredient may not be fungal acne safe.

Stearyl Alcohol is a type of fatty alcohol from stearic acid. It is a white, waxy compound used to emulsify ingredients used as an emollient or to thicken a product.

Emollients help soothe and hydrate the skin by trapping moisture.

Fatty alcohols are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as solvent (ethanol) alcohols.

The FDA allows products labeled "alcohol-free" to have fatty alcohols.

This ingredient may not be fungal acne safe. It is a primary fatty alcohol with a chain length above 12 carbons. A study from 2019 show Malassezia can feed on fatty alcohols in this range, so it may trigger fungal acne in those prone to it.

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.

Similar Comparisons

The reference edit

Ingredients, questions
& further reading.

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

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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. 03Camellia Sinensis Leaf Extract (tea extract) is one of the most well-researched plant extracts in skincare with an impressive resume.
  4. 04Black tea, green tea, and oolong tea are all harvested from the Camellia Sinensis plant.
  5. 05Studies show green tea extract and its catechins (like epigallocatechin gallate (EGCG)) help your skin cells product energy more efficiently and reducing the number of free-radicals that can damage your skin from the inside.
  6. 06In lab-grown skin models, this translated to younger, healthier, and stronger skin.
  7. 07There's also good sun protection data; researchers saw less DNA damage and redness on human skin when green tea was applied before UVB exposure. And the more they applied, the better the protection.
  8. 08Needless to say, this ingredient shouldn't replace your sunscreen. But it is a great supportive ingredient that you can already find in many sunscreens and antioxidant serums.
  9. 09A 2009 study found a 2% green tea lotion was effective for mild-to-moderate acne thanks to its anti-inflammatory and mild antimicrobial activity.
  10. 10The quality of the extract matters a lot here:
  11. 11Good extracts contain 50-90% catechins while lower quality ones are mostly there for marketing. We recommend reaching out to the brand if you have questions about the quality or source of their ingredients.
  12. 12Human Repeated Insult Patch Testing showed no irritation or sensitization at use concentrations (0.86% in leave-on products and up to 30% as leaf water).
  13. 13Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
  14. 14Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
  15. 15However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
  16. 16Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
  17. 17In skincare formulas, citric acid can:
  18. 18While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
  19. 19Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
  20. 20Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.
Source · skinsort.com
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