Skin science article
Ruruberry Dark Circle Corrector Gel Versus Glad2Glow Berry Peptide Eye Cream
Ruruberry Dark Circle Corrector Gel Versus Glad2Glow Berry Peptide Eye Cream This brightening eye moisturizer is formulated around Caffeine and Niacinamide to brighten dull-looking skin and soften the look of wrinkles. This anti-aging eye moisturizer is formul
Ruruberry Dark Circle Corrector Gel Versus Glad2Glow Berry Peptide Eye Cream
This brightening eye moisturizer is formulated around Caffeine and Niacinamide to brighten dull-looking skin and soften the look of wrinkles.
This anti-aging eye moisturizer is formulated around Niacinamide and Palmitoyl Pentapeptide-4 to soften the look of wrinkles.
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Butylene Glycol
Caffeine
Maltodextrin
Niacinamide
Polyacrylate Crosspolymer-6
Panthenol
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Xanthan Gum
Hydroxyethylcellulose
Allantoin
Chlorphenesin
Aminomethyl Propanol
Beta-Glucan
Glycerin
Sodium Hyaluronate
Sodium Polyglutamate
Caprylyl Glycol
Ethylhexylglycerin
Acetyl Hexapeptide-8
Phenoxyethanol
Water, Butylene Glycol, Caffeine, Maltodextrin, Niacinamide, Polyacrylate Crosspolymer-6, Panthenol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Hydroxyethylcellulose, Allantoin, Chlorphenesin, Aminomethyl Propanol, Beta-Glucan, Glycerin, Sodium Hyaluronate, Sodium Polyglutamate, Caprylyl Glycol, Ethylhexylglycerin, Acetyl Hexapeptide-8, Phenoxyethanol
Dimethicone
Methylpropanediol
Coco-Caprylate/Caprate
Maris Aqua
Cyclopentasiloxane
Cetyl Alcohol
Octyldodecanol
Glyceryl Stearate
Cyclohexasiloxane
Hydroxyacetophenone
1,2-Hexanediol
Methyl Hydrogenated Rosinate
Ammonium Acryloyldimethyltaurate/Vp Copolymer
PEG-75 Stearate
Tocopheryl Acetate
Steareth-20
Ceteth-20
Bisabolol
Pentylene Glycol
Lactobacillus/Soymilk Ferment Filtrate
Gentiana Scabra Root Extract
Hydroxyphenyl Propamidobenzoic Acid
Palmitoyl Pentapeptide-4
Tocopherol
Ceramide EOP
Ceramide AP
Ceramide Ns
Ceramide Ng
Ceramide As
Acetyl Tetrapeptide-5
Dipeptide Diaminobutyroyl Benzylamide Diacetate
Chondrus Crispus Extract
Smithsonite Extract
Peumus Boldus Leaf Extract
Moringa Oleifera Seed Extract
Zea Mays Kernel Extract
Palmaria Palmata Extract
Phytosteryl/Octyldodecyl Lauroyl Glutamate
Ceramide NP
Echinacea Purpurea Extract
Ascorbyl Palmitate
Lycium Barbarum Fruit Extract
Trehalose
Sophora Flavescens Root Extract
Aloe Barbadensis Leaf Extract
Hydrogenated Lecithin
Dendrobium Nobile Stem Extract
Erythritol
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Disodium EDTA
Cyclodextrin
Polysorbate 20
Carbomer
Arginine
Water, Glycerin, Dimethicone, Methylpropanediol, Coco-Caprylate/Caprate, Maris Aqua, Cyclopentasiloxane, Cetyl Alcohol, Octyldodecanol, Glyceryl Stearate, Niacinamide, Cyclohexasiloxane, Hydroxyacetophenone, 1,2-Hexanediol, Methyl Hydrogenated Rosinate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, PEG-75 Stearate, Tocopheryl Acetate, Steareth-20, Ceteth-20, Butylene Glycol, Bisabolol, Pentylene Glycol, Lactobacillus/Soymilk Ferment Filtrate, Gentiana Scabra Root Extract, Hydroxyphenyl Propamidobenzoic Acid, Caffeine, Sodium Hyaluronate, Palmitoyl Pentapeptide-4, Tocopherol, Ceramide EOP, Ceramide AP, Ceramide Ns, Ceramide Ng, Ceramide As, Acetyl Tetrapeptide-5, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Chondrus Crispus Extract, Smithsonite Extract, Peumus Boldus Leaf Extract, Moringa Oleifera Seed Extract, Zea Mays Kernel Extract, Palmaria Palmata Extract, Phytosteryl/Octyldodecyl Lauroyl Glutamate, Ceramide NP, Echinacea Purpurea Extract, Ascorbyl Palmitate, Lycium Barbarum Fruit Extract, Trehalose, Sophora Flavescens Root Extract, Aloe Barbadensis Leaf Extract, Hydrogenated Lecithin, Dendrobium Nobile Stem Extract, Erythritol, Xanthan Gum, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Disodium EDTA, Cyclodextrin, Polysorbate 20, Carbomer, Arginine
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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.
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.
Caffeine is a naturally occurring plant compound found in coffee beans, tea leaves, cocoa pods, and guarana.
As an antioxidant, caffeine protects your skin from free radical damage caused by UV exposure and envionrmnetal stressors.
Early research also shows that caffeine can help calm redness, soothe irritated skin, and support hair growth by stimulating microcirculation in the scalp.
You might have seen eye creams marketing caffeine as a depuffing ingredient. This is because it is a vasoconstrictor meaning it can temporarily constrict blood vessels, though clinical evidence for this specific use is still limited.
Most skincare products contain this ingredient at concentrations between 1-6%. It is able to penetrate skin easily regardless of skin type or thickness.
Just so you know, a very small number of case reports describe caffeine-induced allergy. This ingredient is generally well-tolerated, non-irritating, and non-sensitizing for the majority of people.
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.
Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.
And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.
You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.
In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.
If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.
In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).
Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.
Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.
The type of niacinamide used in skincare is synthetically created.
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.