Boots Vitamin C Brightening Sleeping Mask Versus Summer Fridays Jet Lag Mask

Boots Vitamin C Brightening Sleeping Mask Versus Summer Fridays Jet Lag Mask Detailed comparison of Boots Vitamin C Brightening Sleeping Mask versus Summer Fridays Jet Lag Mask. This brightening overnight mask is formulated around 3-O-Ethyl Ascorbic Acid and Ascorbyl Tetraisopalmitate to brighten dull-looking skin. This wash off mask is made with Niacinamide and Ceramide EOP for a rinse-off barrier-support boost. Water Glycerin Cyclopentasiloxane Betaine Dimethicone C12-15 Alkyl Benzoate Polyacrylamide Phenoxyethanol Cetearyl Olivate C13-14 Isoparaffin Sorbitan Olivate Dimethiconol Phenyl Trimethicone Laureth-7 Carbomer Disodium EDTA Tocopheryl Acetate Urea Parfum 3-O-Ethyl Ascorbic Acid Butylene Glycol Caprylyl Glycol Potassium Hydroxide Sodium Citrate Benzophenone-4 Limonene Dipropylene Glycol Ascorbyl Tetraisopalmitate Dimethicone Crosspolymer Benzyl Benzoate Hexyl Cinnamal Linalool Butylphenyl Methylpropional Benzyl Salicylate Citrus Junos Fruit Extract Citral Hydroxycitronellal Denatonium Benzoate Water, Glycerin, Cyclopentasiloxane, Betaine, Dimethicone, C12-15 Alkyl Benzoate, Polyacrylamide, Phenoxyethanol, Cetearyl Olivate, C13-14 Isoparaffin, Sorbitan Olivate, Dimethiconol, Phenyl Trimethicone, Laureth-7, Carbomer, Disodium EDTA, Tocopheryl Acetate, Urea, Parfum, 3-O-Ethyl Ascorbic Acid, Butylene Glycol, Caprylyl Glycol, Potassium Hydroxide, Sodium Citrate, Benzophenone-4, Limonene, Dipropylene Glycol, Ascorbyl Tetraisopalmitate, Dimethicone Crosspolymer, Benzyl Benzoate, Hexyl Cinnamal, Linalool, Butylphenyl Methylpropional, Benzyl Salicylate, Citrus Junos Fruit Extract, Citral, Hydroxycitronellal, Denatonium Benzoate Caprylic/Capric Triglyceride Diheptyl Succinate Butyrospermum Parkii Butter Cetearyl Alcohol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Niacinamide Pentylene Glycol Sorbitan Stearate Glyceryl Stearate Sodium Hyaluronate Ceramide EOP Ceramide NP Ceramide AP Aminopropyl Ascorbyl Phosphate Allantoin Bisabolol Panthenol Physalis Angulata Extract Castanea Sativa Seed Extract Phytosphingosine Capryloyl Glycerin/Sebacic Acid Copolymer Ethylhexylglycerin Tetrasodium Glutamate Diacetate Cucumis Sativus Fruit Extract Cholesterol Sodium Lauroyl Lactylate Xanthan Gum PEG-100 Stearate Water, Caprylic/Capric Triglyceride, Diheptyl Succinate, Butyrospermum Parkii Butter, Cetearyl Alcohol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Niacinamide, Pentylene Glycol, Glycerin, Sorbitan Stearate, Glyceryl Stearate, Sodium Hyaluronate, Ceramide EOP, Ceramide NP, Ceramide AP, Aminopropyl Ascorbyl Phosphate, Allantoin, Bisabolol, Panthenol, Physalis Angulata Extract, Castanea Sativa Seed Extract, Tocopheryl Acetate, Phytosphingosine, Capryloyl Glycerin/Sebacic Acid Copolymer, Ethylhexylglycerin, Tetrasodium Glutamate Diacetate, Cucumis Sativus Fruit Extract, Cholesterol, Sodium Lauroyl Lactylate, Carbomer, Xanthan Gum, PEG-100 Stearate, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions. 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. 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 w