Skin science article
Peach & Lily Retinal for All Renewing Serum Versus The INKEY List Retinol Serum
Peach & Lily Retinal for All Renewing Serum Versus The INKEY List Retinol Serum This anti-aging serum is formulated around Ectoin and Ceramide NP to soften the look of wrinkles and refine skin texture. This anti-aging serum is formulated around Retinyl Acetate
Peach & Lily Retinal for All Renewing Serum Versus The INKEY List Retinol Serum
This anti-aging serum is formulated around Ectoin and Ceramide NP to soften the look of wrinkles and refine skin texture.
This anti-aging serum is formulated around Retinyl Acetate and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles and refine skin texture.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Caprylic/Capric Triglyceride
Cetearyl Alcohol
Butylene Glycol
Glycerin
Cyclodextrin
Sorbitan Stearate
Cetyl Ethylhexanoate
Daucus Carota Sativa Root Water
Camellia Japonica Flower Extract
Rubus Chamaemorus Seed Oil
Sodium Hyaluronate
Ectoin
Behenic Acid
Eclipta Prostrata Extract
Polyacrylate Crosspolymer-6
Bisabolol
Ceramide NP
Ceramide AP
Phytosphingosine
Cholesterol
Rhynchosia Nulubilis Seed Extract
Retinal
Lonicera Japonica Flower Extract
Dextrin
Polygonum Multiflorum Root Extract
Moringa Oleifera Seed Oil
Ceramide EOP
Polyacrylate-13
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Sesamum Indicum Seed Extract
Melia Azadirachta Leaf Extract
Gardenia Florida Fruit Extract
Lonicera Caprifolium Flower Extract
Hydrogenated Polyisobutene
Methylpropanediol
Potassium Sorbate
Sodium Cetearyl Sulfate
Polyglyceryl-6 Behenate
Glyceryl Caprylate
Hydroxyacetophenone
Phytosteryl/Octyldodecyl Lauroyl Glutamate
Sucrose Cocoate
Polyglyceryl-10 Laurate
Ethylhexyl Palmitate
Sorbitan Isostearate
Polyglyceryl-10 Stearate
Pentylene Glycol
1,2-Hexanediol
Triethyl Citrate
Tocopherol
Sodium Levulinate
Glyceryl Stearate
Sorbitan Olivate
Ethylhexylglycerin
Cetearyl Olivate
Propanediol
Water, Caprylic/Capric Triglyceride, Cetearyl Alcohol, Butylene Glycol, Glycerin, Cyclodextrin, Sorbitan Stearate, Cetyl Ethylhexanoate, Daucus Carota Sativa Root Water, Camellia Japonica Flower Extract, Rubus Chamaemorus Seed Oil, Sodium Hyaluronate, Ectoin, Behenic Acid, Eclipta Prostrata Extract, Polyacrylate Crosspolymer-6, Bisabolol, Ceramide NP, Ceramide AP, Phytosphingosine, Cholesterol, Rhynchosia Nulubilis Seed Extract, Retinal, Lonicera Japonica Flower Extract, Dextrin, Polygonum Multiflorum Root Extract, Moringa Oleifera Seed Oil, Ceramide EOP, Polyacrylate-13, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sesamum Indicum Seed Extract, Melia Azadirachta Leaf Extract, Gardenia Florida Fruit Extract, Lonicera Caprifolium Flower Extract, Hydrogenated Polyisobutene, Methylpropanediol, Potassium Sorbate, Sodium Cetearyl Sulfate, Polyglyceryl-6 Behenate, Glyceryl Caprylate, Hydroxyacetophenone, Phytosteryl/Octyldodecyl Lauroyl Glutamate, Sucrose Cocoate, Polyglyceryl-10 Laurate, Ethylhexyl Palmitate, Sorbitan Isostearate, Polyglyceryl-10 Stearate, Pentylene Glycol, 1,2-Hexanediol, Triethyl Citrate, Tocopherol, Sodium Levulinate, Glyceryl Stearate, Sorbitan Olivate, Ethylhexylglycerin, Cetearyl Olivate, Propanediol
Dicaprylyl Carbonate
Retinyl Acetate
Dimethicone
Phenoxyethanol
Caprylyl Glycol
Phospholipids
Squalane
Glycine Soja Oil
Carbomer
Polysorbate 60
Tocopheryl Acetate
Glycolipids
Sodium Hydroxide
Sodium Phytate
Glycine Soja Sterols
Tetrahexyldecyl Ascorbate
Leuconostoc/Radish Root Ferment Filtrate
Hyaluronic Acid
Sodium Lactate
Polysorbate 20
Palmitoyl Tetrapeptide-7
Palmitoyl Tripeptide-1
Water, Glycerin, Butylene Glycol, Propanediol, Dicaprylyl Carbonate, Retinyl Acetate, Dimethicone, Phenoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Caprylyl Glycol, Phospholipids, Squalane, Glycine Soja Oil, Carbomer, Polysorbate 60, Tocopheryl Acetate, Glycolipids, Sodium Hydroxide, Sodium Phytate, Sorbitan Isostearate, Glycine Soja Sterols, Tetrahexyldecyl Ascorbate, Leuconostoc/Radish Root Ferment Filtrate, Hyaluronic Acid, Sodium Lactate, Tocopherol, Polysorbate 20, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1
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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.
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 is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.
It is also an emulsifer, meaning it prevents ingredients such as oil and water from separating. It also helps evenly disperse other ingredients.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Sorbitan Isostearate is an emulsifer. It is created from isostearic acid and sorbitol.
As an emulsifier, it keeps the water and oil ingredients from separating. This keeps formulas stable and smooth.
In a 24 hour occlusive patch test on 56 subjects, 10% sorbitan isostearate was completely non-irritating. Most formulas use less than 10%.
Because it's a fatty acid ester, it may not be fungal acne safe since the Malassezia yeast can utilize it as a nutrient source.
Tocopherol 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.
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!