Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

Charlotte Tilbury Magic Water Cream Versus The INKEY List Bio-Active Ceramide Repairing and Plumping Moisturizer

Charlotte Tilbury Magic Water Cream Versus The INKEY List Bio-Active Ceramide Repairing and Plumping Moisturizer This barrier-repair moisturizer is formulated around Squalane and Niacinamide to strengthen the skin barrier and hydrate skin. This barrier-repair

Charlotte Tilbury Magic Water Cream Versus The INKEY List Bio-Active Ceramide Repairing and Plumping Moisturizer

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

This barrier-repair moisturizer is formulated around Butyrospermum Parkii Butter and Ceramide NP to strengthen the skin barrier and hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Butyrospermum Parkii Butter

Caprylic/Capric Triglyceride

Squalane

Propanediol

Pentylene Glycol

1,2-Hexanediol

Glyceryl Glucoside

Niacinamide

Mannitol

Aloe Barbadensis Leaf Juice

Carbomer

Camellia Oleifera Seed Oil

Rosa Canina Fruit Oil

Caprylyl Glycol

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Helianthus Annuus Seed Oil

Sodium Gluconate

Sodium Hydroxide

Tocopherol

Beta-Glucan

Sodium Hyaluronate

Backhousia Citriodora Leaf Extract

Vaccinium Macrocarpon Fruit Extract

Plumeria Rubra Flower Extract

Ascorbyl Palmitate

Acetyl Tetrapeptide-11

Citric Acid

Acetyl Tetrapeptide-9

Potassium Sorbate

Sodium Benzoate

Water, Glycerin, Butyrospermum Parkii Butter, Caprylic/Capric Triglyceride, Squalane, Propanediol, Pentylene Glycol, 1,2-Hexanediol, Glyceryl Glucoside, Niacinamide, Mannitol, Aloe Barbadensis Leaf Juice, Carbomer, Camellia Oleifera Seed Oil, Rosa Canina Fruit Oil, Caprylyl Glycol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Helianthus Annuus Seed Oil, Sodium Gluconate, Sodium Hydroxide, Tocopherol, Beta-Glucan, Sodium Hyaluronate, Backhousia Citriodora Leaf Extract, Vaccinium Macrocarpon Fruit Extract, Plumeria Rubra Flower Extract, Ascorbyl Palmitate, Acetyl Tetrapeptide-11, Citric Acid, Acetyl Tetrapeptide-9, Potassium Sorbate, Sodium Benzoate

C12-15 Alkyl Benzoate

Polysilicone-11

C10-18 Triglycerides

Pentaerythrityl Tetraisostearate

Cetearyl Olivate

Sorbitan Olivate

Cetyl Alcohol

Phenoxyethanol

Ceramide NP

Polyacrylate-13

Hydrogenated Polyisobutene

Ethylhexylglycerin

Polyglyceryl-10 Laurate

Ethylhexyl Palmitate

Laureth-12

Sorbitan Isostearate

Hdi/Trimethylol Hexyllactone Crosspolymer

Polymethylsilsesquioxane

Water, Glycerin, Butyrospermum Parkii Butter, C12-15 Alkyl Benzoate, Propanediol, Polysilicone-11, C10-18 Triglycerides, Caprylic/Capric Triglyceride, Pentaerythrityl Tetraisostearate, Cetearyl Olivate, Sorbitan Olivate, Cetyl Alcohol, Phenoxyethanol, Ceramide NP, Polyacrylate-13, Hydrogenated Polyisobutene, Ethylhexylglycerin, Polyglyceryl-10 Laurate, Ethylhexyl Palmitate, Laureth-12, Sorbitan Isostearate, Hdi/Trimethylol Hexyllactone Crosspolymer, Polymethylsilsesquioxane, Citric Acid, Sodium Hydroxide

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.

This ingredient is also known as shea butter. It is a plant-derived extract from the nuts of the Africa shea tree and one of the most well-studied emollients.

Because it has a high concentration of fatty acids (primarily oleic, stearic, and linoleic) it is able to form a protective barrier on the skin's surface. This helps seal in moisture and prevents transepidermal water loss (TEWL).

In vitro research found an increase in skin hydration by 58% and a decrease in TEWL by 37.8% after 24 hours of applying this ingredient (pretty impressive for a single ingredient!).

Besides hydration, shea butter also contains triterpenes that have anti-inflammatory potential. In particule, lupeol cinnamate has shown the highest anti-inflammatory activity in vivo.

Shea butter also contains vitamins A and E which may contribute to antioxidant activity.

While Shea Butter has an SPF rating of about 3-4, it is not a sunscreen replacement.

This ingredient may not be fungal acne safe because its fatty acids fall within the C11-C24 range that the Malassezia yeast can metabolize.

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%.

Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.

Like 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.

However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.

Due 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.

In skincare formulas, citric acid can:

While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.

Most 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.

Rosacea 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.

However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.

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.

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.

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.

Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.

"Alkaline" refers to a high pH level. A low pH level would be considered acidic.

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 Side-by-side

  1. 01Water
  2. 02Propanediol
  3. 03Sodium Hyaluronate
  4. 04Glycerin
  5. 05Butylene Glycol
  6. 06Phenoxyethanol
  7. 07Ammonium Acryloyldimethyltaurate/Vp Copolymer
  8. 08Leuconostoc/Radish Root Ferment Filtrate
  9. 09Hyaluronic Acid
  10. 10Carbomer
  11. 11Sodium Lactate
  12. 12Polysorbate 20
  13. 13Palmitoyl Tetrapeptide-7
  14. 14Palmitoyl Tripeptide-1
  15. 15Water, Propanediol, Sodium Hyaluronate, Glycerin, Butylene Glycol, Phenoxyethanol, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Leuconostoc/Radish Root Ferment Filtrate, Hyaluronic Acid, Carbomer, Sodium Lactate, Polysorbate 20, Palmitoyl Tetrapep…
  16. 16Hydrolyzed Hyaluronic Acid
  17. 17PPG-10 Methyl Glucose Ether
  18. 18Succinic Acid
  19. 19Hydroxyethylcellulose
  20. 20Methylparaben
Source · skinsort.com
02

Product index

Related product references

Product

The Inkey List Multi-Biotic

The Inkey List Multi-Biotic The Inkey List Multi-Biotic ingredients explained: Water (Aqua/Eau), Inulin, Glycerin, Isoamyl Laurate, Propanediol, Squalane, Cetearyl Olivate, Sorbitan Olivate…

Source: incidecoder.comView reference →

Product

The Inkey List Q10 Serum

The Inkey List Q10 Serum The Inkey List Q10 Serum ingredients explained: Water (Aqua/Eau), Propanediol, Butylene Glycol, Glycerin, Dicaprylyl Carbonate, Dimethicone, Caprylic/Capric Triglyc…

Source: incidecoder.comView reference →

Product

The Inkey List Brighten-i Eye Cream

The Inkey List Brighten-i Eye Cream The Inkey List Brighten-i Eye Cream ingredients explained: Water (Aqua/Eau), Dimethicone, Coco-Caprylate/Caprate, Glycerin, Caprylic/Capric Triglyceride,…

Source: incidecoder.comView reference →
03

Comparison edit

Read side by side