PCA Skin Silkcoat Balm Versus PCA Skin ReBalance

PCA Skin Silkcoat Balm Versus PCA Skin ReBalance

This barrier-repair night moisturizer is formulated around Butyrospermum Parkii Butter and Hydrolyzed Silk to strengthen the skin barrier and hydrate skin.

This calming moisturizer is formulated around Niacinamide and Bisabolol to calm redness and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Butyrospermum Parkii Butter

Caprylic/Capric Triglyceride

Cetyl Alcohol

Glyceryl Stearate

Cyclopentasiloxane

Dimethicone

Theobroma Cacao Seed Butter

C12-15 Alkyl Benzoate

Stearic Acid

Potassium Cetyl Phosphate

Cetearyl Alcohol

Phenoxyethanol

Polysorbate 60

Allantoin

Simmondsia Chinensis Seed Oil

Squalane

Tocopheryl Acetate

Hydrolyzed Silk

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Ethylhexylglycerin

Hydrastis Canadensis Extract

Lavandula Angustifolia Flower Extract

Rosmarinus Officinalis Leaf Extract

Thymus Vulgaris Flower/Leaf Extract

Sodium Hydroxide

Water, Glycerin, Butyrospermum Parkii Butter, Caprylic/Capric Triglyceride, Cetyl Alcohol, Glyceryl Stearate, Cyclopentasiloxane, Dimethicone, Theobroma Cacao Seed Butter, C12-15 Alkyl Benzoate, Stearic Acid, Potassium Cetyl Phosphate, Cetearyl Alcohol, Phenoxyethanol, Polysorbate 60, Allantoin, Simmondsia Chinensis Seed Oil, Squalane, Tocopheryl Acetate, Hydrolyzed Silk, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ethylhexylglycerin, Hydrastis Canadensis Extract, Lavandula Angustifolia Flower Extract, Rosmarinus Officinalis Leaf Extract, Thymus Vulgaris Flower/Leaf Extract, Sodium Hydroxide

Ethylhexyl Isononanoate

Glycereth-26

Butylene Glycol

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Niacinamide

Carbomer

Polyisobutene

Caprylyl Glycol

Bisabolol

Hexylene Glycol

PEG-7 Trimethylolpropane Coconut Ether

Oenothera Biennis Oil

Borago Officinalis Seed Oil

Aloe Barbadensis Leaf Juice

Sodium Hyaluronate

Water, Ethylhexyl Isononanoate, Glycereth-26, Butylene Glycol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Niacinamide, Carbomer, Polyisobutene, Caprylyl Glycol, Bisabolol, Sodium Hydroxide, Ethylhexylglycerin, Hexylene Glycol, PEG-7 Trimethylolpropane Coconut Ether, Tocopheryl Acetate, Oenothera Biennis Oil, Borago Officinalis Seed Oil, Aloe Barbadensis Leaf Juice, Sodium Hyaluronate

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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.

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.

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.

Tocopheryl Acetate is a stable, shelf-friendly form of vitamin E.

Formulators love it because plain vitamin E oxidizes quickly once it hits air. This acetate version stays stable and resists going off, helping to extend a product's shelf life.

It's actually inactive on its own and works like a slow-release "storage" form; the enzymes in your skin called esterases gradually convert it into active vitamin E over time.

One in vivo study showed 5% of the acetate in the living layer of the epidermis converted to vitamin E after 5 days of application. This study also found the skin gained protection against UV damage even though the conversion was slow and small.

Once converted, vitamin E acts as a skin's main fat-soluble antioxidant that fights free radicals to protect skin from damage.

Topical vitamin E generally boosts the skin's photoprotection, and it reduced UV-damage in animal models.

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.

Overall, it has a pretty solid safety profile and has been found to be non-irritating and non-comedogenic. Allergic reactions may happen but stay rare due to how widely the ingredient gets used.

The concentration will vary depending on the formula; industry data shows 0.1% in baby lotions, 3% in lipsticks, and 5% in foot powders. You can also find this ingredient at 100% in a pure vitamin E oil.

Most leave-on skincare keeps it at the lower end, often between 0.5-1%.

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!

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