Skincyclopedia 20% Vitamin C Face Serum Versus The INKEY List 15% Vitamin C And EGF Serum

Skincyclopedia 20% Vitamin C Face Serum Versus The INKEY List 15% Vitamin C And EGF Serum

This brightening serum is formulated around Sodium Ascorbyl Phosphate to brighten dull-looking skin and fade the look of dark spots.

This brightening serum is formulated around Ascorbyl Glucoside to brighten dull-looking skin and fade the look of dark spots.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Sodium Ascorbyl Phosphate

Ethylhexyl Stearate

Glycerin

Prunus Amygdalus Dulcis Oil

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Isohexadecane

Polysorbate 60

Tocopheryl Acetate

Phenoxyethanol

Ethylhexylglycerin

Citric Acid

Water, Sodium Ascorbyl Phosphate, Ethylhexyl Stearate, Glycerin, Prunus Amygdalus Dulcis Oil, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Isohexadecane, Polysorbate 60, Tocopheryl Acetate, Phenoxyethanol, Ethylhexylglycerin, Citric Acid

Ascorbyl Glucoside

Sodium Hydroxide

PEG-40 Hydrogenated Castor Oil

Benzyl Alcohol

Butylene Glycol

Xanthan Gum

Sodium Metabisulfite

Dehydroacetic Acid

Phytic Acid

Oligopeptide-1

Water, Ascorbyl Glucoside, Sodium Hydroxide, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Benzyl Alcohol, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Sodium Metabisulfite, Dehydroacetic Acid, Phytic Acid, Oligopeptide-1

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.

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.

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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