Skin science article
Dear, Klairs Fundamental Watery Oil Drop Versus Torriden Dive-In Low-Molecular Hyaluronic Acid Serum
Dear, Klairs Fundamental Watery Oil Drop Versus Torriden Dive-In Low-Molecular Hyaluronic Acid Serum This hydrating serum is formulated around Bifida Ferment Extract and Oryza Sativa Extract to hydrate skin and strengthen the skin barrier. This hydrating serum
Dear, Klairs Fundamental Watery Oil Drop Versus Torriden Dive-In Low-Molecular Hyaluronic Acid Serum
This hydrating serum is formulated around Bifida Ferment Extract and Oryza Sativa Extract to hydrate skin and strengthen the skin barrier.
This hydrating serum is formulated around Panthenol and Hydrolyzed Hyaluronic Acid to hydrate skin and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Butylene Glycol
Camellia Sinensis Leaf Water
Bifida Ferment Extract
Oryza Sativa Extract
Dipropylene Glycol
Betaine
1,2-Hexanediol
Aspergillus/Rice Ferment Extract
Camellia Sinensis Leaf Extract
Sorbitol
Sorbitan Sesquioleate
Ethylhexylglycerin
Arginine
Xanthan Gum
Hydroxyethylcellulose
Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Isohexadecane
Dipotassium Glycyrrhizate
Sodium Hyaluronate
Carbomer
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Tocopheryl Acetate
Laminaria Japonica Extract
Polysorbate 80
Sorbitan Oleate
Hydrogenated Lecithin
Ceramide NP
Disodium Phosphate
Polysorbate 60
Sodium Phosphate
Copper Tripeptide-1
Acetyl Hexapeptide-8
Water, Glycerin, Butylene Glycol, Camellia Sinensis Leaf Water, Bifida Ferment Extract, Oryza Sativa Extract, Dipropylene Glycol, Betaine, 1,2-Hexanediol, Aspergillus/Rice Ferment Extract, Camellia Sinensis Leaf Extract, Sorbitol, Sorbitan Sesquioleate, Ethylhexylglycerin, Arginine, Xanthan Gum, Hydroxyethylcellulose, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Isohexadecane, Dipotassium Glycyrrhizate, Sodium Hyaluronate, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tocopheryl Acetate, Laminaria Japonica Extract, Polysorbate 80, Sorbitan Oleate, Hydrogenated Lecithin, Ceramide NP, Disodium Phosphate, Polysorbate 60, Sodium Phosphate, Copper Tripeptide-1, Acetyl Hexapeptide-8
Panthenol
Sodium Hyaluronate Crosspolymer
Hydrolyzed Hyaluronic Acid
Sodium Acetylated Hyaluronate
Hydrolyzed Sodium Hyaluronate
Allantoin
Ectoin
Glycyrrhiza Glabra Root Extract
2,3-Butanediol
Trehalose
Propanediol
Portulaca Oleracea Extract
Hamamelis Virginiana Leaf Extract
Madecassoside
Madecassic Acid
Beta-Glucan
Malachite Extract
Cholesterol
Pentylene Glycol
Glyceryl Acrylate/Acrylic Acid Copolymer
Pvm/Ma Copolymer
Polyglyceryl-10 Laurate
Tromethamine
Scutellaria Baicalensis Root Extract
Paeonia Suffruticosa Root Extract
Water, Butylene Glycol, Glycerin, Dipropylene Glycol, 1,2-Hexanediol, Panthenol, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Hydrolyzed Sodium Hyaluronate, Allantoin, Ectoin, Glycyrrhiza Glabra Root Extract, 2,3-Butanediol, Trehalose, Betaine, Propanediol, Portulaca Oleracea Extract, Hamamelis Virginiana Leaf Extract, Madecassoside, Madecassic Acid, Ceramide NP, Beta-Glucan, Malachite Extract, Cholesterol, Pentylene Glycol, Glyceryl Acrylate/Acrylic Acid Copolymer, Pvm/Ma Copolymer, Polyglyceryl-10 Laurate, Xanthan Gum, Tromethamine, Carbomer, Ethylhexylglycerin, Scutellaria Baicalensis Root Extract, Paeonia Suffruticosa Root Extract
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.
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
Betaine is a humectant. Like hyaluronic acid, it helps attract and retain moisture in the skin. It’s known for being gentle and for helping the skin maintain balanced hydration.
Betaine is mainly used to improve hydration and support calmer skin. It helps skin cells regulate water balance because it functions as an osmolyte.
Some studies suggest betaine may support making skin tone more even.
Fun fact: Betaine naturally exists in the skin and the body. In cosmetic products, it can be either plant-derived (most commonly from sugar beets) or synthetically produced for consistency and stability.
Betaine is also known as trimethylglycine.
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.
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.
Ceramide NP (formerly known as Ceramide 3) is one of the skin's naturally occurring lipids.
Since ceramides are the major lipid components of the skin, they are crucial for maintaining skin barrier and hydration. Ceramide NP most closely mirrors the dominant kind in human skin amongst ceramide subtypes.
This ceramide works by slotting into gaps within the stratum corneum's lipid matrix to limit trans-epidermal water loss (TEWL) and shield the skin against external irritants.
A study with 312 patients found that using a ceramide-containing routine for 4 weeks reduced the severity of atopic dermatitis by over 61%.
Another clinical study in subjects aged 60 and older found that a ceramide body wash and moisturizer improved skin dryness and itchy skin in 15 days.
Overall, ceramides are considered non-irritating and safety tests have found little to no observable adverse effects from using this ingredient.
Ceramide NP is usually sourced from plants (like soybean or rice bran), or produced synthetically.
Dipropylene Glycol is a synthetically created humectant, stabilizer, and solvent.
This ingredient helps:
Dipropylene glycol is technically an alcohol, but it belongs to the glycol family (often considered part of the ‘good’ alcohols). This means it is hydrating and gentle on skin unlike drying solvent alcohols like denatured alcohol.
As a masking agent, Dipropylene Glycol can be used to cover the smell of other ingredients. However, it does not have a scent.
Studies show Dipropylene Glycol is considered safe to use in skincare.
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.
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.
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.