Peter Thomas Roth Water Drench® Hyaluronic Glow Serum Versus Summer Fridays Dream Oasis Deep Hydration Serum

Peter Thomas Roth Water Drench® Hyaluronic Glow Serum Versus Summer Fridays Dream Oasis Deep Hydration Serum

This hydrating serum is formulated around Sodium Hyaluronate and Lactic Acid to hydrate skin and brighten dull-looking skin.

This hydrating serum is formulated around Squalane and Aloe Barbadensis Leaf Juice to hydrate skin and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Ricinus Communis Seed Oil

Butylene Glycol

Isostearyl Neopentanoate

Glycerin

Sodium Hyaluronate

Lactic Acid

Sphingolipids

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Amylopectin

Phospholipids

Carbomer

Potassium Sorbate

Ethylhexylglycerin

Sodium Hydroxide

Ascorbyl Palmitate

Tocopherol

Lecithin

Sodium Benzoate

Malachite Extract

Lithothamnion Calcareum Extract

Sodium Citrate

Pentylene Glycol

Isostearyl Alcohol

Xanthan Gum

Hydrogenated Palm Glycerides Citrate

Dimethicone

CI 42090

Phenoxyethanol

Water, Ricinus Communis Seed Oil, Butylene Glycol, Isostearyl Neopentanoate, Glycerin, Sodium Hyaluronate, Lactic Acid, Sphingolipids, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Amylopectin, Phospholipids, Carbomer, Potassium Sorbate, Ethylhexylglycerin, Sodium Hydroxide, Ascorbyl Palmitate, Tocopherol, Lecithin, Sodium Benzoate, Malachite Extract, Lithothamnion Calcareum Extract, Sodium Citrate, Pentylene Glycol, Isostearyl Alcohol, Xanthan Gum, Hydrogenated Palm Glycerides Citrate, Dimethicone, CI 42090, Phenoxyethanol

Propanediol

Squalane

Cetyl Ethylhexanoate

Aloe Barbadensis Leaf Juice

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Polyester-5

Avena Sativa Kernel Flour

Sodium PCA

Panthenol

Ceramide NP

Arnica Montana Flower Extract

Laminaria Digitata Extract

Centella Asiatica Extract

Palmitoyl Tripeptide-38

Niacinamide

Acetyl Glucosamine

Arginine

Aspartic Acid

PCA

Glycine

Alanine

Serine

Valine

Proline

Threonine

Isoleucine

Phenylalanine

Histidine

Sodium Lactate

Caprylhydroxamic Acid

Glyceryl Stearate

Disodium EDTA

Polyglyceryl-3 Methylglucose Distearate

Citric Acid

Hydroxypropyl Cyclodextrin

1,2-Hexanediol

Propylene Glycol

Water, Propanediol, Squalane, Glycerin, Cetyl Ethylhexanoate, Aloe Barbadensis Leaf Juice, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Polyester-5, Sodium Hyaluronate, Avena Sativa Kernel Flour, Sodium PCA, Panthenol, Ceramide NP, Arnica Montana Flower Extract, Laminaria Digitata Extract, Centella Asiatica Extract, Palmitoyl Tripeptide-38, Niacinamide, Acetyl Glucosamine, Arginine, Aspartic Acid, PCA, Glycine, Alanine, Serine, Valine, Proline, Threonine, Isoleucine, Phenylalanine, Histidine, Sodium Lactate, Caprylhydroxamic Acid, Glyceryl Stearate, Disodium EDTA, Sodium Hydroxide, Polyglyceryl-3 Methylglucose Distearate, Sodium Benzoate, Citric Acid, Hydroxypropyl Cyclodextrin, Xanthan Gum, Potassium Sorbate, 1,2-Hexanediol, Propylene Glycol

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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.

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.

Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.

This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.

Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.

You'll often find this ingredient used with other preservatives.

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.

It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.

Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.

We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.

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!

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.

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