innisfree Vitamin C Green Tea Enzyme Brightening Serum Versus Hyper Skin Hyper Clear Brightening Clearing Vitamin C Serum
This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Gluconolactone to brighten dull-looking skin and refine skin texture.
This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Kojic Acid to fade the look of dark spots and brighten dull-looking skin.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPropanediol
Solvent
Glycerin
Humectant
1,2-Hexanediol
Skin Conditioning
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Betaine
Humectant
Erythritol
Humectant
Butylene Glycol
Humectant
Lactobacillus Ferment Lysate
Skin Conditioning
Squalane
Emollient
Helianthus Annuus Seed Oil
Emollient
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingDextrin
AbsorbentXanthan Gum
EmulsifyingTromethamine
BufferingGluconolactone
Chelating
Citrus Unshiu Peel Extract
MaskingPanthenol
Skin Conditioning
Carnosine
Skin Conditioning
Niacinamide
Smoothing
Allantoin
Skin Conditioning
Hyaluronic Acid
Humectant
Caprylic/Capric Triglyceride
Masking
Daucus Carota Sativa Root Extract
Skin Conditioning
Pentylene Glycol
Skin Conditioning
Sodium Metaphosphate
BufferingSilica Dimethyl Silylate
EmollientTocopherol
Antioxidant
Ethylhexylglycerin
Skin ConditioningCyclodextrin
AbsorbentMadecassoside
Antioxidant
Ascorbyl Tetraisopalmitate
Antioxidant
Salix Alba Bark Extract
Astringent
Dipotassium Glycyrrhizate
Humectant
Protease
Exfoliating
Tranexamic Acid
Astringent
Glutathione
Achillea Millefolium Extract
CleansingSodium Hyaluronate
Humectant
Beta-Carotene
Skin ConditioningFerulic Acid
Antimicrobial
Hydrolyzed Hyaluronic Acid
Humectant
Sodium Hyaluronate Crosspolymer
Humectant
Sodium Acetylated Hyaluronate
Humectant
Water, Propanediol, Glycerin, 1,2-Hexanediol, 3-O-Ethyl Ascorbic Acid, Betaine, Erythritol, Butylene Glycol, Lactobacillus Ferment Lysate, Squalane, Helianthus Annuus Seed Oil, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Dextrin, Xanthan Gum, Tromethamine, Gluconolactone, Citrus Unshiu Peel Extract, Panthenol, Carnosine, Niacinamide, Allantoin, Hyaluronic Acid, Caprylic/Capric Triglyceride, Daucus Carota Sativa Root Extract, Pentylene Glycol, Sodium Metaphosphate, Silica Dimethyl Silylate, Tocopherol, Ethylhexylglycerin, Cyclodextrin, Madecassoside, Ascorbyl Tetraisopalmitate, Salix Alba Bark Extract, Dipotassium Glycyrrhizate, Protease, Tranexamic Acid, Glutathione, Achillea Millefolium Extract, Sodium Hyaluronate, Beta-Carotene, Ferulic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Sodium Acetylated Hyaluronate
Water
Skin Conditioning3-O-Ethyl Ascorbic Acid
Skin Conditioning
Kojic Acid
Antioxidant
Aloe Barbadensis Leaf Juice
Skin Conditioning
Arctostaphylos Uva-Ursi Leaf Extract
Skin Conditioning
Biotin
AntiseborrhoeicCamellia Oleifera Leaf Extract
AstringentCitric Acid
Buffering
Corallina Officinalis Extract
Skin Conditioning
Curcuma Longa Root Extract
Antioxidant
Ethylhexylglycerin
Skin ConditioningGlycerin
Humectant
Glycyrrhiza Glabra Root Extract
Bleaching
Hyaluronic Acid
Humectant
Hydroxyethylcellulose
Emulsion StabilisingLactobacillus/Papaya Fruit Ferment Extract
Abrasive
Lecithin
Emollient
Maltodextrin
Absorbent
Melia Azadirachta Flower Extract
Skin ConditioningMelia Azadirachta Leaf Extract
Skin ConditioningOcimum Basilicum Extract
Antioxidant
Ocimum Sanctum Leaf Extract
Skin ConditioningPhenoxyethanol
Preservative
Phyllanthus Emblica Fruit Extract
HumectantPotassium Sorbate
Preservative
Pullulan
Pyrus Malus Fruit Extract
Skin Conditioning
Saccharomyces/Xylinum/Black Tea Ferment
Skin Conditioning
Salicylic Acid
Masking
Sclerotium Gum
Emulsion StabilisingSilica
Abrasive
Sodium Benzoate
Masking
Sodium Citrate
BufferingTetrasodium EDTA
ChelatingTocopherol
Antioxidant
Xanthan Gum
EmulsifyingWater, 3-O-Ethyl Ascorbic Acid, Kojic Acid, Aloe Barbadensis Leaf Juice, Arctostaphylos Uva-Ursi Leaf Extract, Biotin, Camellia Oleifera Leaf Extract, Citric Acid, Corallina Officinalis Extract, Curcuma Longa Root Extract, Ethylhexylglycerin, Glycerin, Glycyrrhiza Glabra Root Extract, Hyaluronic Acid, Hydroxyethylcellulose, Lactobacillus/Papaya Fruit Ferment Extract, Lecithin, Maltodextrin, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Ocimum Basilicum Extract, Ocimum Sanctum Leaf Extract, Phenoxyethanol, Phyllanthus Emblica Fruit Extract, Potassium Sorbate, Pullulan, Pyrus Malus Fruit Extract, Saccharomyces/Xylinum/Black Tea Ferment, Salicylic Acid, Sclerotium Gum, Silica, Sodium Benzoate, Sodium Citrate, Tetrasodium EDTA, Tocopherol, Xanthan Gum
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
3-O-Ethyl Ascorbic Acid is one of the most popular "stable" vitamin C derivatives in skincare.
Plain ascorbic acid is fantastic but notoriously fragile; it browns, oxidizes, and loses potency fast. So attaching an ethyl group to the third carbon of the molecule gives it some cool perks:
In a formula, it does the 3 classic vitamin C jobs: it acts as an antioxidant, helps brighten skin tone by inhibiting tyrosinase, and supports collagen.
The evidence is reasonably solid for a cosmetic ingredient; Liao and colleagues (2018) showed it's significantly more stable than ascorbic acid while still being effective.
A 2021 study by Zerbinati and colleagues tested a serum with 30% 3-O-ethyl-l-ascorbic acid and 1% lactic acid significantly increased collagen production, reduced UVB-induced DNA damage, and decreased melanin on a reconstructed pigmented skin model.
Typical real world usage sits around 0.5-5% (and 1-2% is common for daily serums).
Amounts up to 30% have been shown to be non-irritating on human skin samples, but two isolated cases reported allergic contact dermatitis so a patch test is sensible if you have reactive skin.
Learn more about 3-O-Ethyl Ascorbic AcidEthylhexylglycerin 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.
Learn more about EthylhexylglycerinGlycerin (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.
Learn more about GlycerinHyaluronic acid (HA) is a glycosaminoglycan (basically a long sugar chain) that your skin already makes on its own. In your skin, HA lives in the extracellular matrix and acts as the body's moisture reservoir.
Topically, HA is a humectant that binds water and helps skin look more plump, smooth, and hydrated.
The only catch is that HA isn't a single thing; it actually comes in a wide range of molecular weights (~50 - 2,000+ kDA) and size matters.
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
This is why the best HA serums blend the two sizes together so you get the best of both worlds.
The majority of cosmetic HA is produced by bacterial fermentation, typically using Streptococcus or Bacillus strains. Typical use levels in skincare sit around 0.1-2%.
A clinical study using a 0.2% low-molecular weight HA gel showed improvement in facial seborrheic dermatitis with excellent tolerance.
These are some other common types of Hyaluronic Acid:
Learn more about Hyaluronic AcidTocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
Learn more about TocopherolWater. 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!
Learn more about WaterXanthan 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.
Learn more about Xanthan Gum
