Skin science article
Peach & Lily Super Oasis Concentrated Serum Versus Youth To The People Triple Peptide + Cactus Oasis Serum
Peach & Lily Super Oasis Concentrated Serum Versus Youth To The People Triple Peptide + Cactus Oasis Serum This hydrating serum is formulated around Panthenol and Polyglutamic Acid to hydrate skin and calm redness. This anti-aging serum is formulated around Op
Peach & Lily Super Oasis Concentrated Serum Versus Youth To The People Triple Peptide + Cactus Oasis Serum
This hydrating serum is formulated around Panthenol and Polyglutamic Acid to hydrate skin and calm redness.
This anti-aging serum is formulated around Opuntia Ficus-Indica Stem Extract and Palmitoyl Tripeptide-1 to soften the look of wrinkles.
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Glycerin 14.5%
Diethoxyethyl Succinate
1,2-Hexanediol
Panthenol
Polyglutamic Acid
Panax Ginseng Root Extract
Sodium PCA
Xylitylglucoside
Anhydroxylitol
Xylitol
Hydrolyzed Hyaluronic Acid
Arginine
Methionine
Cysteine
Sodium Hyaluronate
Hyaluronic Acid
Houttuynia Cordata Extract
Tremella Fuciformis Extract
Sodium Hyaluronate Crosspolymer
Beta-Glucan
Hydrolyzed Sodium Hyaluronate
Adansonia Digitata Seed Extract
Sophora Angustifolia Root Extract
Malus Domestica Fruit Extract
Punica Granatum Fruit Extract
Prunus Serotina Fruit Extract
Vaccinium Macrocarpon Fruit Extract
Butylene Glycol
Portulaca Oleracea Extract
Citrullus Lanatus Fruit Extract
Gardenia Florida Fruit Extract
Dextrin
Dipotassium Glycyrrhizate
Glucose
Sodium Polyacryloyldimethyl Taurate
Sodium Polyacrylate
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Pentylene Glycol
Carbomer
Ethylhexylglycerin
Caprylyl Glycol
Water, Glycerin 14.5%, Diethoxyethyl Succinate, 1,2-Hexanediol, Panthenol, Polyglutamic Acid, Panax Ginseng Root Extract, Sodium PCA, Xylitylglucoside, Anhydroxylitol, Xylitol, Hydrolyzed Hyaluronic Acid, Arginine, Methionine, Cysteine, Sodium Hyaluronate, Hyaluronic Acid, Houttuynia Cordata Extract, Tremella Fuciformis Extract, Sodium Hyaluronate Crosspolymer, Beta-Glucan, Hydrolyzed Sodium Hyaluronate, Adansonia Digitata Seed Extract, Sophora Angustifolia Root Extract, Malus Domestica Fruit Extract, Punica Granatum Fruit Extract, Prunus Serotina Fruit Extract, Vaccinium Macrocarpon Fruit Extract, Butylene Glycol, Portulaca Oleracea Extract, Citrullus Lanatus Fruit Extract, Gardenia Florida Fruit Extract, Dextrin, Dipotassium Glycyrrhizate, Glucose, Sodium Polyacryloyldimethyl Taurate, Sodium Polyacrylate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Pentylene Glycol, Carbomer, Ethylhexylglycerin, Caprylyl Glycol
Glycerin
Opuntia Ficus-Indica Stem Extract
Palmitoyl Tripeptide-1
Palmitoyl Tetrapeptide-7
Palmitoyl Tripeptide-28
Sodium Acetylated Hyaluronate
Synthetic Sapphire
Lens Esculenta Fruit Extract
Pyrus Malus Fruit Extract
Nephelium Lappaceum Peel Extract
Glutathione
Malachite Extract
Citric Acid
Hydroxypropyl Methylcellulose
Tetrasodium Glutamate Diacetate
Sodium Lactate
Propanediol
Polysorbate 20
Hydroxyethylcellulose
Xanthan Gum
Phenoxyethanol
Water, Butylene Glycol, Glycerin, Pentylene Glycol, Opuntia Ficus-Indica Stem Extract, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-28, Sodium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sodium Acetylated Hyaluronate, Synthetic Sapphire, Citrullus Lanatus Fruit Extract, Lens Esculenta Fruit Extract, Pyrus Malus Fruit Extract, Nephelium Lappaceum Peel Extract, Sodium PCA, Glutathione, Malachite Extract, Citric Acid, Hydroxypropyl Methylcellulose, Tetrasodium Glutamate Diacetate, Polyglutamic Acid, 1,2-Hexanediol, Caprylyl Glycol, Sodium Lactate, Carbomer, Propanediol, Polysorbate 20, Hydroxyethylcellulose, Xanthan Gum, Phenoxyethanol, Ethylhexylglycerin
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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
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).
Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture.
Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%.
It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier.
Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%.
A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions.
Citrullus Lanatus Fruit Extract comes from the watermelon. Watermelon has antioxidant and anti-inflammatory properties.
Watermelons are rich in antioxidants such as Vitamin A, Vitamin C and lycopene. It also contains sugars and amino acids, such as arginine and glutathione.
Lycopene is a potent antioxidant. Besides helping to protect your skin against free-radical molecules, it also helps soothe the skin. Lycopene gives watermelon the distinct red color.
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.
This ingredient is created by putting sodium hyaluronate through hydrolysis.
You might know this as 'mini' or 'ultra low-molecular weight' hyaluronic acid. The small molecule size means it is able to travel deeper in the skin.
According to studies, low molecular-weight hyaluronic acid can:
One study from 2011 found ultra-low weight HA to show pro-inflammatory properties. Another study from 2022 found it to downregulate UV-B induced inflammation.
Hydrolysis is a process of changing a molecule using water or enzymes.
This ingredient is water-soluble.
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%.
Polyglutamic Acid is made up many glutamic acids chained together. It is created from bacterial fermentation.
This ingredient is an effective skin hydrator and may help speed up wound healing. As a humectant, it draws and holds water to the skin. This ingredient is often compared to hyaluronic acid or glycerin. Similarly to hyaluronic acid, it can vary in molecular weights. This means polyglutamic acid is capable of bringing hydration to lower levels of the skin.
Fun fact: Polyglutamic Acid is found in the Japanese food, natto. It is also being used in cancer treatment studies.
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 Hyaluronate Crosspolymer is a crosslinked version of sodium hyaluronate. This just means it's linked into a 3D mesh network that lets it be more stable and sit on skin as a cohesive, gel-like film rather than sinking into skin.
A 2016 human skin study found crosslinked HA increased epidermal water content by 7.6% over the control group and reduced transepidermal water loss by 27.8%.
A follow-up clinical trial found that a topical crosslinked HA serum applied after fillers, microneedling, or chemical peels was well-tolerated and enhanced skin quality at 14 / 28 days.
More recent research suggests that concentrations as low as 0.03% can act as a penetration enhancer for other skincare actives.
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!