Murad AHA/BHA/Retinoid Daily Clarifying Peel Versus Paula's Choice Pro Retinaldehyde Dual-Retinoid Treatment

Murad AHA/BHA/Retinoid Daily Clarifying Peel Versus Paula's Choice Pro Retinaldehyde Dual-Retinoid Treatment

This smoothing exfoliator is formulated around Glycolic Acid and Retinyl Propionate to refine skin texture and refine the look of pores.

This anti-aging treatment is formulated around Retinal and Oleyl Adapalenate to soften the look of wrinkles and refine skin texture.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Dimethicone

Hamamelis Virginiana Water

Pentylene Glycol

Glycerin

Caprylic/Capric Triglyceride

Propanediol

Butyl Avocadate

Butylene Glycol

Glycolic Acid

Retinyl Propionate

Allantoin

Zinc Gluconate

Melia Azadirachta Leaf Extract

Rosa Canina Fruit Extract

Melia Azadirachta Flower Extract

Corallina Officinalis Extract

Urea

Yeast Amino Acids

Coccinia Indica Fruit Extract

Helianthus Annuus Seed Oil

Solanum Melongena Fruit Extract

Aloe Barbadensis Flower Extract

Simmondsia Chinensis Seed Oil

Curcuma Longa Root Extract

Ocimum Basilicum Flower/Leaf Extract

Ocimum Sanctum Leaf Extract

BHT

Betaine

Inositol

Taurine

Trehalose

Tocopherol

Salicylic Acid

Benzoic Acid

Limonene

Linalool

Citronellol

Geraniol

Benzyl Benzoate

Citral

Parfum

Potassium Sorbate

Disodium EDTA

Sodium Hydroxide

Phenoxyethanol

Water, Dimethicone, Hamamelis Virginiana Water, Pentylene Glycol, Glycerin, Caprylic/Capric Triglyceride, Propanediol, Butyl Avocadate, Butylene Glycol, Glycolic Acid, Retinyl Propionate, Allantoin, Zinc Gluconate, Melia Azadirachta Leaf Extract, Rosa Canina Fruit Extract, Melia Azadirachta Flower Extract, Corallina Officinalis Extract, Urea, Yeast Amino Acids, Coccinia Indica Fruit Extract, Helianthus Annuus Seed Oil, Solanum Melongena Fruit Extract, Aloe Barbadensis Flower Extract, Simmondsia Chinensis Seed Oil, Curcuma Longa Root Extract, Ocimum Basilicum Flower/Leaf Extract, Ocimum Sanctum Leaf Extract, BHT, Betaine, Inositol, Taurine, Trehalose, Tocopherol, Salicylic Acid, Benzoic Acid, Limonene, Linalool, Citronellol, Geraniol, Benzyl Benzoate, Citral, Parfum, Potassium Sorbate, Disodium EDTA, Sodium Hydroxide, Phenoxyethanol

Polyglyceryl-2 Stearate

Polyglyceryl-3 Diisostearate

Sodium Stearoyl Glutamate

Retinal

Oleyl Adapalenate

Tocopheryl Acetate

Saccharomyces Ferment Filtrate

Albatrellus Confluens Extract

Punica Granatum Pericarp Extract

Glyceryl Stearate

Stearyl Alcohol

Hydroxyapatite

Cetyl Glyceryl Ether

Ricinus Communis Seed Oil

Sodium Polyacrylate

Isopropyl Myristate

Hydroxyacetophenone

Caprylhydroxamic Acid

Sodium Phytate

Xanthan Gum

Hydroxystearic Acid

Ceramide AP

1,2-Hexanediol

Sorbitan Oleate

Naringin

Citric Acid

Titanium Dioxide

Water, Caprylic/Capric Triglyceride, Simmondsia Chinensis Seed Oil, Dimethicone, Polyglyceryl-2 Stearate, Propanediol, Polyglyceryl-3 Diisostearate, Sodium Stearoyl Glutamate, Retinal, Oleyl Adapalenate, Tocopherol, Tocopheryl Acetate, Saccharomyces Ferment Filtrate, Albatrellus Confluens Extract, Punica Granatum Pericarp Extract, Glyceryl Stearate, Stearyl Alcohol, Hydroxyapatite, Butylene Glycol, Cetyl Glyceryl Ether, Ricinus Communis Seed Oil, Sodium Polyacrylate, Isopropyl Myristate, Hydroxyacetophenone, Caprylhydroxamic Acid, Sodium Phytate, Xanthan Gum, Glycerin, Hydroxystearic Acid, Ceramide AP, 1,2-Hexanediol, Sorbitan Oleate, Naringin, Citric Acid, Titanium Dioxide

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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.

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss.

Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid.

In practice, that translates to a long shelf life and a consistently elegant skin feel.

While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns.

Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source.

This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out.

This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%.

Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane.

What it does:

Dimethicone comes in different viscosities:

Depending on the viscosity, dimethicone has different properties.

Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.

This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.

Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.

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.

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

Jojoba oil is one of the most well-studied plant-derived ingredients in cosmetics. It is an emollient with a special structure.

Because it is made up of 97-98% wax esters, it closely mirrors the linear monoesters found in human sebum. This makes it skin compatible, non-greasy, and lightweight.

Unlike other plant oils, jojoba wax doesn't easily penetrate skin. It mostly works in the uppermost layers as an emollient. This just means it forms a light barrier on the skin to help retain moisture.

Formulations with jojoba esters up to 90% reduced transepidermal water loss (TEWL) and increased barrier recovery by 81% (outperforming bisabolol at 47%).

Besides barrier support, the science also suggests jojoba to have anti-inflammatory effects and potential applications for skin infections, aging, and wound healing.

Fun fact: Indigenous cultures have used jojoba as a moisturizer and to help treat burns for centuries.

Fungal acne: The Malassezia yeast is known to metabolize fatty acids in the C11-24 range and jojoba's dominant fatty acid components fall into this range. This ingredient may not be fungal acne safe.

Tocopherol is a fat-soluble antioxidant known as Vitamin E.

You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.

Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.

It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.

This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.

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.

In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.

Concentrations usually range from 0.1-1% in most leave-on products.

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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