Skin science article
The INKEY List 1% Retinol Serum Versus Biologique Recherche Lotion P50 1970
The INKEY List 1% Retinol Serum Versus Biologique Recherche Lotion P50 1970 This anti-aging serum is formulated around Retinol to soften the look of wrinkles and refine skin texture. This smoothing toner is formulated around Niacinamide and Lactic Acid to refi
The INKEY List 1% Retinol Serum Versus Biologique Recherche Lotion P50 1970
This anti-aging serum is formulated around Retinol to soften the look of wrinkles and refine skin texture.
This smoothing toner is formulated around Niacinamide and Lactic Acid to refine skin texture and clear breakouts.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Prunus Armeniaca Kernel Oil
Persea Gratissima Oil
Caprylic/Capric Triglyceride
Squalane
Cetearyl Alcohol
Glyceryl Stearate Se
Retinol
Phenoxyethanol
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Benzyl Alcohol
Phospholipids
Tocopherol
Polyacrylate Crosspolymer-6
Glycine Soja Oil
Ethylhexylglycerin
Glycolipids
Dehydroacetic Acid
Polysorbate 60
Sorbitan Isostearate
Trisodium Ethylenediamine Disuccinate
Glycine Soja Sterols
T-Butyl Alcohol
Water, Glycerin, Prunus Armeniaca Kernel Oil, Persea Gratissima Oil, Caprylic/Capric Triglyceride, Squalane, Cetearyl Alcohol, Glyceryl Stearate Se, Retinol, Phenoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Benzyl Alcohol, Phospholipids, Tocopherol, Polyacrylate Crosspolymer-6, Glycine Soja Oil, Ethylhexylglycerin, Glycolipids, Dehydroacetic Acid, Polysorbate 60, Sorbitan Isostearate, Trisodium Ethylenediamine Disuccinate, Glycine Soja Sterols, T-Butyl Alcohol
Phenol
Niacinamide
Vinegar
Ethoxydiglycol
Magnesium Chloride
Lactic Acid
Arctium Lappa Root Extract
Salicylic Acid
Sodium Benzoate
Sulfur
Water, Glycerin, Phenol, Niacinamide, Vinegar, Ethoxydiglycol, Magnesium Chloride, Lactic Acid, Arctium Lappa Root Extract, Salicylic Acid, Sodium Benzoate, Sulfur
Reviews
Be the first to review
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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.
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!