Skin science article
Glow Recipe Plum Plump Hyaluronic Cream Versus Paula's Choice 1% Retinol Treatment
Glow Recipe Plum Plump Hyaluronic Cream Versus Paula's Choice 1% Retinol Treatment This barrier-repair moisturizer is formulated around Hyaluronic Acid and Polyglutamic Acid to strengthen the skin barrier and hydrate skin. This anti-aging treatment is formulat
Glow Recipe Plum Plump Hyaluronic Cream Versus Paula's Choice 1% Retinol Treatment
This barrier-repair moisturizer is formulated around Hyaluronic Acid and Polyglutamic Acid to strengthen the skin barrier and hydrate skin.
This anti-aging treatment is formulated around Retinol and Tetrahexyldecyl Ascorbate to soften the look of wrinkles and refine skin texture.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Propanediol
Glycerin
C13-15 Alkane
Caprylic/Capric Triglyceride
C9-12 Alkane
Prunus Domestica Seed Oil
Pentylene Glycol
Squalane
Terminalia Ferdinandiana Seed Oil
Hyaluronic Acid
Sodium Acetylated Hyaluronate
Sodium Hyaluronate
Davidsonia Jerseyana Fruit Extract
Terminalia Ferdinandiana Fruit Powder
Podocarpus Elatus Fruit Extract
Polyglutamic Acid
Pleiogynium Timoriense Fruit Extract
Sodium Hyaluronate Crosspolymer
Hydrolyzed Sodium Hyaluronate
Epilobium Fleischeri Flower/Leaf/Stem Extract
Niacinamide
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Xylitylglucoside
Isononyl Isononanoate
Caprylyl Glycol
Anhydroxylitol
Cetearyl Alcohol
Glyceryl Stearate
Arginine
Ethylhexylglycerin
Sodium Chloride
Xylitol
Stearic Acid
Tremella Fuciformis Polysaccharide
Sodium Lauroyl Glutamate
Eclipta Prostrata Extract
Glucose
Potassium Phosphate
Butylene Glycol
Melia Azadirachta Leaf Extract
Hydroxypropylcellulose
Alaria Esculenta Extract
Sodium Phosphate
Potassium Chloride
Melia Azadirachta Flower Extract
Corallina Officinalis Extract
1,2-Hexanediol
Moringa Oleifera Seed Oil
Coccinia Indica Fruit Extract
Citric Acid
Potassium Sorbate
Solanum Melongena Fruit Extract
Aloe Barbadensis Flower Extract
Gluconolactone
Simmondsia Chinensis Seed Oil
Curcuma Longa Root Extract
Ocimum Basilicum Flower/Leaf Extract
Ocimum Sanctum Leaf Extract
Silica
Sodium Hydroxide
Sodium Benzoate
Phenoxyethanol
Parfum
Water, Propanediol, Glycerin, C13-15 Alkane, Caprylic/Capric Triglyceride, C9-12 Alkane, Prunus Domestica Seed Oil, Pentylene Glycol, Squalane, Terminalia Ferdinandiana Seed Oil, Hyaluronic Acid, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Davidsonia Jerseyana Fruit Extract, Terminalia Ferdinandiana Fruit Powder, Podocarpus Elatus Fruit Extract, Polyglutamic Acid, Pleiogynium Timoriense Fruit Extract, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate, Epilobium Fleischeri Flower/Leaf/Stem Extract, Niacinamide, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xylitylglucoside, Isononyl Isononanoate, Caprylyl Glycol, Anhydroxylitol, Cetearyl Alcohol, Glyceryl Stearate, Arginine, Ethylhexylglycerin, Sodium Chloride, Xylitol, Stearic Acid, Tremella Fuciformis Polysaccharide, Sodium Lauroyl Glutamate, Eclipta Prostrata Extract, Glucose, Potassium Phosphate, Butylene Glycol, Melia Azadirachta Leaf Extract, Hydroxypropylcellulose, Alaria Esculenta Extract, Sodium Phosphate, Potassium Chloride, Melia Azadirachta Flower Extract, Corallina Officinalis Extract, 1,2-Hexanediol, Moringa Oleifera Seed Oil, Coccinia Indica Fruit Extract, Citric Acid, Potassium Sorbate, Solanum Melongena Fruit Extract, Aloe Barbadensis Flower Extract, Gluconolactone, Simmondsia Chinensis Seed Oil, Curcuma Longa Root Extract, Ocimum Basilicum Flower/Leaf Extract, Ocimum Sanctum Leaf Extract, Silica, Sodium Hydroxide, Sodium Benzoate, Phenoxyethanol, Parfum
Dimethicone
Castor Isostearate Succinate
C12-15 Alkyl Benzoate
Dimethicone Crosspolymer
PEG-33
Polysorbate 20
Behenyl Alcohol
PEG-100 Stearate
Pentaerythrityl Tetraisostearate
Polymethylsilsesquioxane
Tetrahexyldecyl Ascorbate
Retinol
Ceramide Ng
Palmitoyl Tetrapeptide-7
Palmitoyl Hexapeptide-12
Dipotassium Glycyrrhizate
Glycyrrhiza Glabra Root Extract
Avena Sativa Kernel Extract
Arctium Lappa Seed Oil
Salix Alba Extract
Glycine Soja Sterols
Lecithin
Allantoin
Tocopheryl Acetate
Hydrolyzed Soy Protein
Sorbitan Laurate
Acetyl Dipeptide-1 Cetyl Ester
Disodium EDTA
Hydroxyethylcellulose
Palmitoyl Tripeptide-1
Tribehenin
PEG-75 Shea Butter Glycerides
PPG-12/Smdi Copolymer
PEG-10 Phytosterol
PEG-8 Dimethicone
PEG-14
Magnesium Aluminum Silicate
Arachidyl Glucoside
Arachidyl Alcohol
Sclerotium Gum
Carbomer
Benzoic Acid
Water, Dimethicone, Glycerin, Butylene Glycol, Isononyl Isononanoate, Castor Isostearate Succinate, Glyceryl Stearate, C12-15 Alkyl Benzoate, Dimethicone Crosspolymer, PEG-33, Polysorbate 20, Behenyl Alcohol, PEG-100 Stearate, Pentaerythrityl Tetraisostearate, Polymethylsilsesquioxane, Tetrahexyldecyl Ascorbate, Retinol, Ceramide Ng, Palmitoyl Tetrapeptide-7, Palmitoyl Hexapeptide-12, Sodium Hyaluronate, Dipotassium Glycyrrhizate, Glycyrrhiza Glabra Root Extract, Avena Sativa Kernel Extract, Arctium Lappa Seed Oil, Salix Alba Extract, Glycine Soja Sterols, Lecithin, Allantoin, Tocopheryl Acetate, Hydrolyzed Soy Protein, Sorbitan Laurate, Acetyl Dipeptide-1 Cetyl Ester, Disodium EDTA, Hydroxyethylcellulose, Palmitoyl Tripeptide-1, Sodium Hydroxide, Tribehenin, Caprylyl Glycol, Ethylhexylglycerin, Pentylene Glycol, PEG-75 Shea Butter Glycerides, PPG-12/Smdi Copolymer, PEG-10 Phytosterol, PEG-8 Dimethicone, PEG-14, Magnesium Aluminum Silicate, Arachidyl Glucoside, Arachidyl Alcohol, Sclerotium Gum, Carbomer, Phenoxyethanol, Benzoic Acid
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.
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.
Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
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.
Glyceryl Stearate is made by reacting glycerin with stearic acid (typically sourced from plant oils like palm or coconut). It's an emulsifier, emollient, and mild occlusive.
Emulsifiers help ingredients like oil and water stay mixed so your formula stays nicely blended and uniform in texture.
This ingredient is typically used in concentrations between 1-10%. Studies have found it to be non-sensitizing, non-phototoxic, and non-photoallergenic.
A close cousin of this ingredient is Glyceryl Stearate SE ("self-emulsifying"). This just has a small amount of sodium or potassium stearate added so it can emulsify without a co-emulsifier.
Since this ingredient is an ester of a C18 fatty acid, it may not be fungal acne safe. The Malassezia yeast can potentially metabolize within the C11-C24 range.
Fun fact: The human body also creates Glyceryl Stearate naturally.
Isononyl Isononanoate is a synthetic skin-conditioner and texture enhancer. It is created from nonanoic acid, a fatty acid found in cocoa and lavender oil.
As an emollient, Isononyl Isononanoate helps keep your skin soft and smooth. This is because emollients create a barrier on the skin to trap moisture in.
Isononyl Isononanoate helps give products a velvet feel and improves spreadability.
Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
Typical use levels in a formula run about 1-5%.
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 Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
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!