CeraVe AM Facial Moisturising Lotion SPF 25 Versus CeraVe Hydrating Hyaluronic Acid Serum

CeraVe AM Facial Moisturising Lotion SPF 25 Versus CeraVe Hydrating Hyaluronic Acid Serum Detailed comparison of CeraVe AM Facial Moisturising Lotion SPF 25 versus CeraVe Hydrating Hyaluronic Acid Serum US. This barrier-repair day moisturizer is formulated around Niacinamide and Ceramide NP to strengthen the skin barrier and hydrate skin. This hydrating serum is formulated around Sodium Hyaluronate and Ceramide NP to hydrate skin and strengthen the skin barrier. Water Homosalate Glycerin Octocrylene Ethylhexyl Salicylate Niacinamide Aluminum Starch Octenylsuccinate Butyl Methoxydibenzoylmethane Dimethicone Cetearyl Alcohol PEG-100 Stearate Glyceryl Stearate Phenoxyethanol Stearic Acid Behentrimonium Methosulfate Caprylyl Glycol Palmitic Acid Ammonium Polyacryloyldimethyl Taurate Xanthan Gum Disodium EDTA Tocopherol Sodium Lauroyl Lactylate Myristic Acid Sodium Hyaluronate Ceramide NP Ceramide AP Phytosphingosine Cholesterol Carbomer Ethylhexylglycerin Ceramide EOP Water, Homosalate, Glycerin, Octocrylene, Ethylhexyl Salicylate, Niacinamide, Aluminum Starch Octenylsuccinate, Butyl Methoxydibenzoylmethane, Dimethicone, Cetearyl Alcohol, PEG-100 Stearate, Glyceryl Stearate, Phenoxyethanol, Stearic Acid, Behentrimonium Methosulfate, Caprylyl Glycol, Palmitic Acid, Ammonium Polyacryloyldimethyl Taurate, Xanthan Gum, Disodium EDTA, Tocopherol, Sodium Lauroyl Lactylate, Myristic Acid, Sodium Hyaluronate, Ceramide NP, Ceramide AP, Phytosphingosine, Cholesterol, Carbomer, Ethylhexylglycerin, Ceramide EOP Cetearyl Ethylhexanoate Panthenol Sodium Hydroxide Isopropyl Myristate Citric Acid Water, Glycerin, Cetearyl Ethylhexanoate, Dimethicone, Ammonium Polyacryloyldimethyl Taurate, Sodium Hyaluronate, Panthenol, Ceramide NP, Ceramide AP, Ceramide EOP, Carbomer, Cetearyl Alcohol, Behentrimonium Methosulfate, Sodium Hydroxide, Sodium Lauroyl Lactylate, Cholesterol, Phenoxyethanol, Disodium EDTA, Isopropyl Myristate, Caprylyl Glycol, Citric Acid, Xanthan Gum, Phytosphingosine, Ethylhexylglycerin These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It works as a thickener, emulsifier, and texture enhancer that gives gel-creams a silky, lightweight feel. This ingredient is versatile and low-maintenance so manufacturers love working with it. Typical usage levels in cosmetics are usually low and in the range of 0.015 - 2.3%. Behentrimonium Methosulfate is a gentle, positively-charged conditioning agent made from rapeseed oil. It's the opposite of a harsh cleansing sulfate despite having "sulfate" in its name; its a detangler/softener in haircare and helps keep oil/water blended into a creamy texture as an emulsifier. Concentration-wise, safety review reports the wider trimonium family shows up between 0.0005% to 10% in rinse-off products and 0.001% to 4% in leave-on products. This ingredient is commonly used at ~1–5% when acting as the emulsifier. Allergies to this ingredient are rare; the CIR panel noted the literature lacks clinical reports of irritation or sensitization and patch tests on finished products containing it came back clean. Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created. Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin. Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on). 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. Ceramide AP is is a skin-identical lipid that mimics what your skin already makes naturally. Ceramides help maintain epidermal integrity and barrier function. You'll often see this ingredient paired with other ceramides (like ceramide NP), cholesterol, or fatty acids because this combination best mimics the natural lipid mix your skin already has. The skin's ability to produce ceramides gets disrupted in skin conditions like eczema. This in turn weakens the skin barrier and applying ceramides topically has been shown to replenish what's been lost to restore barrier function. Most of the studies with Ceramide AP test it as part of a multi-ceramide complex; studies reinforce ceramide AP's role in