Skin science article
The INKEY List Caffeine Eye Cream Versus RoC Retinol Correxion Line Smoothing Night Serum Capsules
The INKEY List Caffeine Eye Cream Versus RoC Retinol Correxion Line Smoothing Night Serum Capsules This anti-aging eye moisturizer is formulated around Caffeine and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles. This anti-aging serum is formulated ar
The INKEY List Caffeine Eye Cream Versus RoC Retinol Correxion Line Smoothing Night Serum Capsules
This anti-aging eye moisturizer is formulated around Caffeine and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles.
This anti-aging serum is formulated around Retinol and Ceramide NP to soften the look of wrinkles and refine skin texture.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Dicaprylyl Carbonate
Propanediol
Polyglyceryl-6 Distearate
Cetyl Alcohol
Glyceryl Behenate
Phenoxyethanol
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Jojoba Esters
Albizia Julibrissin Bark Extract
Squalane
Caffeine
Polyglyceryl-3 Beeswax
Phospholipids
Ethylhexylglycerin
Xanthan Gum
Glycine Soja Oil
Polysorbate 60
Sodium Phytate
Glycolipids
Sorbitan Isostearate
Butylene Glycol
Citric Acid
Glycine Soja Sterols
Leuconostoc/Radish Root Ferment Filtrate
Hyaluronic Acid
Sodium Benzoate
Tocopherol
Carbomer
Darutoside
Sodium Lactate
Polysorbate 20
Palmitoyl Tetrapeptide-7
Palmitoyl Tripeptide-1
Water, Glycerin, Dicaprylyl Carbonate, Propanediol, Polyglyceryl-6 Distearate, Cetyl Alcohol, Glyceryl Behenate, Phenoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Jojoba Esters, Albizia Julibrissin Bark Extract, Squalane, Caffeine, Polyglyceryl-3 Beeswax, Phospholipids, Ethylhexylglycerin, Xanthan Gum, Glycine Soja Oil, Polysorbate 60, Sodium Phytate, Glycolipids, Sorbitan Isostearate, Butylene Glycol, Citric Acid, Glycine Soja Sterols, Leuconostoc/Radish Root Ferment Filtrate, Hyaluronic Acid, Sodium Benzoate, Tocopherol, Carbomer, Darutoside, Sodium Lactate, Polysorbate 20, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1
Cyclopentasiloxane
Ethylhexyl Cocoate
Dimethiconol
Retinol
Dimethylmethoxy Chromanol
Ceramide NP
Cyclopentasiloxane, Ethylhexyl Cocoate, Dimethiconol, Glycine Soja Oil, Retinol, Dimethylmethoxy Chromanol, Ceramide NP, Phenoxyethanol
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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.
Glycine Soja Oil is a plant-derived oil from soybean seeds. Like other oils, it is rich in essential fatty acids (mostly linoleic and oleic) that support skin hydration and barrier function.
The fatty acids are able to integrate into the lipid matrix of the stratum corneum to help soften skin and reduce water loss.
On top of that, soybean oil is rich in vitamins like vitamin E, a potent antioxidant.
Research on soybean's active components also point to anti-inflammatory, collagen-stimulating, antioxidant activity, and protection against UV-induced oxidative damage.
Most of this research applies to the broader soybean plant and not just the oil fraction alone.
This ingredient may not be fungal acne safe due to the oleic acid content.
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.