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Skin science article

Allies of Skin Molecular Barrier Recovery Cream Balm Versus Prequel Barrier Therapy Skin Protectant Cream

Allies of Skin Molecular Barrier Recovery Cream Balm Versus Prequel Barrier Therapy Skin Protectant Cream This barrier-repair night moisturizer is formulated around Squalane and Niacinamide to strengthen the skin barrier and calm redness. This barrier-repair m

Allies of Skin Molecular Barrier Recovery Cream Balm Versus Prequel Barrier Therapy Skin Protectant Cream

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

This barrier-repair moisturizer is formulated around Colloidal Oatmeal and Allantoin to strengthen the skin barrier and calm redness.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Squalane

Helianthus Annuus Seed Oil

Methylsilanol Hydroxyproline Aspartate

Sodium Acrylates Copolymer

C12-15 Alkyl Benzoate

Nigella Sativa Seed Oil

Isomalt

Acacia Senegal Gum

Sodium Stearoyl Glutamate

Canola Oil

Helianthus Annuus Seed Wax

Panthenol

Pentaerythrityl Tetraisostearate

Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters

Ethyl Macadamiate

Caprylic/Capric Triglyceride

Niacinamide

Ceramide NP

Allantoin

Bisabolol

Hyaluronic Acid

Lecithin

Hydrolyzed Oat Protein

Aloe Barbadensis Leaf Juice Powder

C10-30 Cholesterol/Lanosterol Esters

Adenosine Triphosphate

Camellia Sinensis Leaf Extract

Tocopherol

Hydroxyphenyl Propamidobenzoic Acid

Opuntia Ficus-Indica Stem Extract

Crocus Chrysanthus Bulb Extract

Phytol

Palmitoyl Tripeptide-8

Xanthan Gum

Silica

Dextran

Zea Mays Starch

Sodium Gluconate

Cetearyl Alcohol

Ethylhexylglycerin

Citric Acid

Glyceryl Stearate

Pentylene Glycol

Sodium Stearoyl Lactylate

Sodium Hydroxide

O-Cymen-5-Ol

Potassium Sorbate

Salicylic Acid

Malic Acid

Butylene Glycol

Phenoxyethanol

Water, Glycerin, Squalane, Helianthus Annuus Seed Oil, Methylsilanol Hydroxyproline Aspartate, Sodium Acrylates Copolymer, C12-15 Alkyl Benzoate, Nigella Sativa Seed Oil, Isomalt, Acacia Senegal Gum, Sodium Stearoyl Glutamate, Canola Oil, Helianthus Annuus Seed Wax, Panthenol, Pentaerythrityl Tetraisostearate, Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters, Ethyl Macadamiate, Caprylic/Capric Triglyceride, Niacinamide, Ceramide NP, Allantoin, Bisabolol, Hyaluronic Acid, Lecithin, Hydrolyzed Oat Protein, Aloe Barbadensis Leaf Juice Powder, C10-30 Cholesterol/Lanosterol Esters, Adenosine Triphosphate, Camellia Sinensis Leaf Extract, Tocopherol, Hydroxyphenyl Propamidobenzoic Acid, Opuntia Ficus-Indica Stem Extract, Crocus Chrysanthus Bulb Extract, Phytol, Palmitoyl Tripeptide-8, Xanthan Gum, Silica, Dextran, Zea Mays Starch, Sodium Gluconate, Cetearyl Alcohol, Ethylhexylglycerin, Citric Acid, Glyceryl Stearate, Pentylene Glycol, Sodium Stearoyl Lactylate, Sodium Hydroxide, O-Cymen-5-Ol, Potassium Sorbate, Salicylic Acid, Malic Acid, Butylene Glycol, Phenoxyethanol

Colloidal Oatmeal 1%

Carthamus Tinctorius Seed Oil

Cetyl Alcohol

Butyrospermum Parkii Butter

Dimethicone

C10-18 Triglycerides

Adenosine

Cetearyl Olivate

Sorbitan Olivate

Ceramide AP

Ceramide Eos

Ceramide EOP

Ceramide Ns

Cholesterol

Caprooyl Phytosphingosine

Caprooyl Sphingosine

Glycolipids

Phospholipids

Behenic Acid

Ceteareth-25

Glycine Soja Oil

Glycine Soja Sterols

Ascorbyl Palmitate

Glyceryl Oleate

Carbomer

Caprylyl Glycol

Hydroxyacetophenone

1,2-Hexanediol

Tocopheryl Acetate

Tetrasodium Glutamate Diacetate

Colloidal Oatmeal 1%, Water, Carthamus Tinctorius Seed Oil, Cetyl Alcohol, Glycerin, Butyrospermum Parkii Butter, Caprylic/Capric Triglyceride, Dimethicone, C10-18 Triglycerides, Allantoin, Adenosine, Cetearyl Olivate, Sorbitan Olivate, Ceramide AP, Ceramide Eos, Ceramide EOP, Ceramide NP, Ceramide Ns, Cholesterol, Caprooyl Phytosphingosine, Caprooyl Sphingosine, Glycolipids, Phospholipids, Sodium Stearoyl Glutamate, Behenic Acid, Ceteareth-25, Glycine Soja Oil, Glycine Soja Sterols, Ascorbyl Palmitate, Tocopherol, Lecithin, Glyceryl Stearate, Glyceryl Oleate, Carbomer, Caprylyl Glycol, Hydroxyacetophenone, Phenoxyethanol, Ethylhexylglycerin, 1,2-Hexanediol, Tocopheryl Acetate, Tetrasodium Glutamate Diacetate, Sodium Hydroxide, 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.

Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics.

Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity.

Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation.

It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh.

Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated.

This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%.

Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating.

Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism.

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.

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.

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.

Glyceryl Stearate is made by reacting glycerin with stearic acid (typically sourced from plant oils like palm or coconut). It's an emulsifier, emollient, and mild occlusive.

Emulsifiers help ingredients like oil and water stay mixed so your formula stays nicely blended and uniform in texture.

This ingredient is typically used in concentrations between 1-10%. Studies have found it to be non-sensitizing, non-phototoxic, and non-photoallergenic.

A close cousin of this ingredient is Glyceryl Stearate SE ("self-emulsifying"). This just has a small amount of sodium or potassium stearate added so it can emulsify without a co-emulsifier.

Since this ingredient is an ester of a C18 fatty acid, it may not be fungal acne safe. The Malassezia yeast can potentially metabolize within the C11-C24 range.

Fun fact: The human body also creates Glyceryl Stearate naturally.

Lecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of phospholipids.

Thanks to its amphiphilic structure (water-loving head and oil-loving tail), it is a true multitasker:

It plays well with most ingredients and is typically used at 0.1-1%. However, concentrations up to 50% have been reported in moisturizers.

Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).

It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.

On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.

Another perk of this ingredient is that it stays functional across a wide pH range (3-10).

You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.

Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.

Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.

Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.

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.

Sodium Stearoyl Glutamate is an amino-acid based emulsifier. It is made by combining stearic acid with L-glutamic acid and neutralizing it to a sodium salt.

As an emulsifier, it works mainly as an oil-in-water one and helps keep the oil and water in your formulas blended. It also contributes to a smooth, non-greasy skin feel.

This ingredient is biodegradable and commonly available in natural/COSMOS-certified grades.

Tocopherol is a fat-soluble antioxidant known as Vitamin E.

You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.

Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.

It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.

This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.

This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.

In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.

Concentrations usually range from 0.1-1% in most leave-on products.

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. 02Azelaic Acid
  3. 03Butylene Glycol
  4. 04Aloe Barbadensis Leaf Juice
  5. 05Propanediol
  6. 06Caprylic/Capric Triglyceride
  7. 07Kojic Acid
  8. 08Polysorbate 20
  9. 09Glycerin
  10. 10Caprylyl Glycol
  11. 11Hexylresorcinol
  12. 12Ethyl Linoleate
  13. 13Leuconostoc/Radish Root Ferment Filtrate
  14. 14Dodecane
  15. 15Hydroxyethylcellulose
  16. 16Xanthan Gum
  17. 17Helianthus Annuus Seed Oil
  18. 18Squalane
  19. 19Bisabolol
  20. 20Glyceryl Laurate
Source · skinsort.com
02

Product index

Related product references

03

Comparison edit

Read side by side