Paula's Choice 2% BHA Lotion Exfoliant Versus Medik8 Press And Glow Tonic

Paula's Choice 2% BHA Lotion Exfoliant Versus Medik8 Press And Glow Tonic

This smoothing exfoliator is formulated around Salicylic Acid and Camellia Sinensis Leaf Extract to refine skin texture and refine the look of pores.

This smoothing toner is formulated around Gluconolactone to refine skin texture and brighten dull-looking skin.

What's inside

Key Ingredients

Benefits

Concerns

No concerns

Ingredients Side-by-side

Water

Butylene Glycol

Polysorbate 20

Cetyl Alcohol

Salicylic Acid

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Cyclopentasiloxane

Sorbitan Stearate

Camellia Sinensis Leaf Extract

Lauric Acid

Allantoin

Glycerin

Glycyrrhiza Glabra Root Extract

Avena Sativa Kernel Extract

Epilobium Angustifolium Extract

Dimethicone

Xanthan Gum

Magnesium Aluminum Silicate

PEG-40 Hydrogenated Castor Oil

Sodium Hydroxide

Hexylene Glycol

Disodium EDTA

Ethylhexylglycerin

Phenoxyethanol

Caprylyl Glycol

Water, Butylene Glycol, Polysorbate 20, Cetyl Alcohol, Salicylic Acid, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Cyclopentasiloxane, Sorbitan Stearate, Camellia Sinensis Leaf Extract, Lauric Acid, Allantoin, Glycerin, Glycyrrhiza Glabra Root Extract, Avena Sativa Kernel Extract, Epilobium Angustifolium Extract, Dimethicone, Xanthan Gum, Magnesium Aluminum Silicate, PEG-40 Hydrogenated Castor Oil, Sodium Hydroxide, Hexylene Glycol, Disodium EDTA, Ethylhexylglycerin, Phenoxyethanol, Caprylyl Glycol

Gluconolactone

Hydrolyzed Opuntia Ficus-Indica Flower Extract

Euterpe Oleracea Fruit Extract

Aloe Barbadensis Leaf Juice

Sodium Citrate

Hydroxyacetophenone

Potassium Sorbate

Sodium Benzoate

Water, Gluconolactone, Glycerin, Hydrolyzed Opuntia Ficus-Indica Flower Extract, Euterpe Oleracea Fruit Extract, Aloe Barbadensis Leaf Juice, Sodium Hydroxide, Sodium Citrate, Hydroxyacetophenone, Phenoxyethanol, Ethylhexylglycerin, Potassium Sorbate, Sodium Benzoate

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.

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.

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.

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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