Undefined Beauty R&R Hydro Jelly Versus Summer Fridays Dream Oasis Deep Hydration Serum

Undefined Beauty R&R Hydro Jelly Versus Summer Fridays Dream Oasis Deep Hydration Serum

This calming serum is formulated around Beta-Glucan and Palmitoyl Tripeptide-5 to calm redness and hydrate 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

Glycerin

Beta-Glucan

Biosaccharide Gum-1

Palmitoyl Tripeptide-5

Aloe Barbadensis Leaf Juice

Hydrolyzed Jojoba Esters

Caffeine

Centella Asiatica Leaf Extract

Withania Somnifera Extract

Tremella Fuciformis Polysaccharide

Lactobacillus Ferment

Ganoderma Lucidum Extract

Saccharomyces/Rice Ferment Filtrate

Saccharomyces/Xylinum/Black Tea Ferment

Sodium PCA

Panthenol

Nymphaea Caerulea Flower Extract

Hydrolyzed Pea Protein

Sodium Hyaluronate

Zingiber Zerumbet Extract

Algin

Hydroxyethylcellulose

Xanthan Gum

Ethylhexylglycerin

1,2-Hexanediol

Caprylyl Glycol

Water, Glycerin, Beta-Glucan, Biosaccharide Gum-1, Palmitoyl Tripeptide-5, Aloe Barbadensis Leaf Juice, Hydrolyzed Jojoba Esters, Caffeine, Centella Asiatica Leaf Extract, Withania Somnifera Extract, Tremella Fuciformis Polysaccharide, Lactobacillus Ferment, Ganoderma Lucidum Extract, Saccharomyces/Rice Ferment Filtrate, Saccharomyces/Xylinum/Black Tea Ferment, Sodium PCA, Panthenol, Nymphaea Caerulea Flower Extract, Hydrolyzed Pea Protein, Sodium Hyaluronate, Zingiber Zerumbet Extract, Algin, Hydroxyethylcellulose, Xanthan Gum, Ethylhexylglycerin, 1,2-Hexanediol, Caprylyl Glycol

Propanediol

Squalane

Cetyl Ethylhexanoate

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Polyester-5

Avena Sativa Kernel Flour

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

Potassium Sorbate

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.

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.

It is a:

Humectant, drawing moisture into the skin

Emollient, helping to soften skin

Solvent, dispersing and stabilizing formulas

Preservative booster, enhancing the antimicrobial activity of other preservatives

Aloe Barbadensis Leaf Juice is the filtered, stabilized liquid pressed from the inner gel of the aloe vera leaf.

In cosmetics, it shows up as either soothing active or a water-replacement base. It is roughly 98-99% water and the last 1-2% is an interesting mix of polysaccharides, amino acids, vitamins, minerals, and enzymes.

The polysaccharides do most of the work: they bind water at the skin surface for a light, non-greasy hydration boost. And one of the polysaccharides, glycomannan, is linked to fibroblast stimulation + collagen synthesis. This is also why aloe has such a long track record in wound and burn healing.

This ingredient is also calming with anti-inflammatory and mild antimicrobial activity, making it a great pick for sensitive, irritated, or post-sun skin.

Realistic expectations matter though; the solid evidence is mostly limited to hydration, soothing, and wound support. Deeper claims about anti-aging or sun protection are not well backed, and science reviews note it does not prevent radiation-induced skin injury.

Because it plays well with almost everything, it's commonly used as a base alongside other actives like niacinamide or vitamin C.

Typical usage concentrations range from 0.5% (where hydration benefits already show up) all the way to 90%+ (where it replaces water as the main base).

The safety for this ingredient is well-establish as well. Overall, this is a great supporting ingredient for those who want a boost in hydration.

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.

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

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 PCA (the salt of PCA) is one of the most well-established humectants in skincare.

Why is it so special? Your skin already makes it naturally; it's a natural component of your skin's Natural Moisturizing Factor (NMF), or the mix of water-binding compounds inside your skin cells that keeps things soft and hydrated.

As a cosmetic ingredient, it grabs water and holds it in the upper layers of skin to smooth roughness and ease dehydration.

There's some clinical support for the NMF approach with a study showing that a cream built to mimic the skin's NMF significantly boosted hydration.

Safety-wise, this ingredient non-irritating, non-comedogenic, and non-phototoxic in testing, with minimal skin absorption.

It also works really well with other hydrators like glycerin or hyaluronic acid, and typical usage is somewhere between 0.2-4%.

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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