Boots Vitamin C Serum Versus The INKEY List 15% Vitamin C And EGF Serum

Boots Vitamin C Serum Versus The INKEY List 15% Vitamin C And EGF Serum

This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Dipotassium Glycyrrhizate 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

Glycerin

PEG-12 Dimethicone

3-O-Ethyl Ascorbic Acid

Phenoxyethanol

PPG-26-Buteth-26

Sodium Citrate

Ammonium Acryloyldimethyltaurate/Vp Copolymer

PEG-40 Hydrogenated Castor Oil

Dipotassium Glycyrrhizate

Chlorphenesin

Citric Acid

Xanthan Gum

Aloe Barbadensis Leaf Juice

Bisabolol

Disodium EDTA

Maltodextrin

Potassium Sorbate

Sodium Benzoate

Water, Glycerin, PEG-12 Dimethicone, 3-O-Ethyl Ascorbic Acid, Phenoxyethanol, PPG-26-Buteth-26, Sodium Citrate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, PEG-40 Hydrogenated Castor Oil, Dipotassium Glycyrrhizate, Chlorphenesin, Citric Acid, Xanthan Gum, Aloe Barbadensis Leaf Juice, Bisabolol, Disodium EDTA, Maltodextrin, Potassium Sorbate, Sodium Benzoate

Ascorbyl Glucoside

Sodium Hydroxide

Benzyl Alcohol

Butylene Glycol

Ethylhexylglycerin

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.

PEG-40 Hydrogenated Castor Oil is an emulsifier derived from castor oil.

As an emulsifying agent, it helps other ingredients like fragrances and fat-soluble vitamins dissolve cohesively.

Due to its large molecule size, it doesn't penetrate beyond the skin's surface.

This ingredient has a solid regulatory track record; the CIR Expert Panel first concluded it was safe for use in cosmetics at concentrations up to 100% in 1997. A 2012 reassessment reaffirmed that finding. Safety studies have also found no irritation or evidence of toxicity.

A 2019 study did find this ingredient to grow Malassezia, so this ingredient may not be fungal acne safe.

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!

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