The INKEY List Apple Cider Vinegar Acid Peel Versus L'Oreal Revitalift Derm Intensives Glycolic Acid Toner

The INKEY List Apple Cider Vinegar Acid Peel Versus L'Oreal Revitalift Derm Intensives Glycolic Acid Toner

This smoothing treatment is formulated around Glycolic Acid and Salix Alba Bark Extract to refine skin texture and brighten dull-looking skin.

This smoothing toner is formulated around Glycolic Acid and Ascorbyl Glucoside to refine skin texture and brighten dull-looking skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycolic Acid

Glycerin

Caprylyl/Capryl Glucoside

Polysorbate 20

Vaccinium Myrtillus Fruit Extract

Acetum

Sodium Hydroxide

Propanediol

Xanthan Gum

Saccharum Officinarum Extract

Lactobacillus

Phenoxyethanol

Hippophae Rhamnoides Fruit Oil

Salix Alba Bark Extract

Maltodextrin

Citrus Aurantium Dulcis Fruit Extract

Citrus Limon Fruit Extract

Citronellyl Methylcrotonate

Acer Saccharum Extract

Ethylhexylglycerin

Leuconostoc/Radish Root Ferment Filtrate

Biosaccharide Gum-1

Phytic Acid

Agastache Mexicana Flower/Leaf/Stem Extract

Water, Glycolic Acid, Glycerin, Caprylyl/Capryl Glucoside, Polysorbate 20, Vaccinium Myrtillus Fruit Extract, Acetum, Sodium Hydroxide, Propanediol, Xanthan Gum, Saccharum Officinarum Extract, Lactobacillus, Phenoxyethanol, Hippophae Rhamnoides Fruit Oil, Salix Alba Bark Extract, Maltodextrin, Citrus Aurantium Dulcis Fruit Extract, Citrus Limon Fruit Extract, Citronellyl Methylcrotonate, Acer Saccharum Extract, Ethylhexylglycerin, Leuconostoc/Radish Root Ferment Filtrate, Biosaccharide Gum-1, Phytic Acid, Agastache Mexicana Flower/Leaf/Stem Extract

Hydroxyethylpiperazine Ethane Sulfonic Acid

Citric Acid

Pentylene Glycol

Aloe Barbadensis Leaf Juice

Citrullus Lanatus Fruit Extract

Allantoin

Ascorbyl Glucoside

Panthenol

Tocopherol

Bis-PEG-18 Methyl Ether Dimethyl Silane

Potassium Sorbate

Salicylic Acid

Ceramide AP

Water, Glycolic Acid, Hydroxyethylpiperazine Ethane Sulfonic Acid, Glycerin, Sodium Hydroxide, Citric Acid, Pentylene Glycol, Aloe Barbadensis Leaf Juice, Citrullus Lanatus Fruit Extract, Allantoin, Ascorbyl Glucoside, Panthenol, Tocopherol, Bis-PEG-18 Methyl Ether Dimethyl Silane, Potassium Sorbate, Salicylic Acid, Ceramide AP

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Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

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.

Glycolic Acid is arguably the most famous alpha hydroxy acid (AHA) with tons of research backing its benefits.

It is found naturally in sugar cane but the form used in skincare is usually synthetic for purity and stability.

Glycolic acid removes the top layer of dead skin cells to allow newer and fresher ones to emerge.

AHAs work by breaking down the structural “glue” that holds old skin cells in place. When that buildup is gone, your skin can renew itself more efficiently.

Research also shows glycolic acid stimulates collagen production, helping to firm and thicken the skin over time. This is one of its biggest advantages over other AHAs.

Overall, glycolic acid helps with:

Fun fact: Glycolic acid boosts skin hydration by helping it produce molecules that increase hyaluronic acid naturally.

To work best, glycolic acid products should have a pH between 3-4 (that’s where exfoliation is most effective but still gentle on skin).

The pH and concentration of a product are key to its effectiveness:

It is normal to feel a slight stinging sensation when using glycolic acid. This usually fades as your skin adjusts.

Because glycolic acid has the smallest molecular size in the AHA family, it can penetrate deeper, which enhances its effectiveness but also makes it more likely to irritate sensitive skin.

If your skin is very sensitive or prone to rosacea, glycolic acid may be too strong; in that case, try milder options like lactic acid or a PHA instead.

Recent studies suggest glycolic acid might even help protect against UV damage. But don’t skip sunscreen! Freshly exfoliated skin is more sensitive to the sun.

Glycolic acid is a skincare superstar. It smooths, brightens, hydrates, and firms the skin. Unless you’re highly sensitive, it’s well worth adding to your routine.

Read more about some other popular AHA's here:

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!

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