Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Kiehl's Ultra Facial Cream Versus Skinfix Barrier+ Triple Lipid-Peptide Cream

Kiehl's Ultra Facial Cream Versus Skinfix Barrier+ Triple Lipid-Peptide Cream Detailed comparison of Kiehl's Ultra Facial Cream UK versus Skinfix Barrier+ Triple Lipid-Peptide Cream. This barrier-repair moisturizer is formulated around Squalane and Pseudoalter

This source-based comparison does not add ratings or recommend a winner.

Kiehl's Ultra Facial Cream Versus Skinfix Barrier+ Triple Lipid-Peptide Cream Detailed comparison of Kiehl's Ultra Facial Cream UK versus Skinfix Barrier+ Triple Lipid-Peptide Cream. This barrier-repair moisturizer is formulated around Squalane and Pseudoalteromonas Ferment Extract to strengthen the skin barrier and hydrate skin. This barrier-repair moisturizer is formulated around Butyrospermum Parkii Butter and Ceramide NP to strengthen the skin barrier and hydrate skin. Water Glycerin Cyclohexasiloxane Squalane Bis-PEG-18 Methyl Ether Dimethyl Silane Sucrose Stearate Stearyl Alcohol PEG-8 Stearate Myristyl Myristate Pentaerythrityl Tetraethylhexanoate Prunus Armeniaca Kernel Oil Phenoxyethanol Persea Gratissima Oil Glyceryl Stearate Cetyl Alcohol Oryza Sativa Bran Oil Olea Europaea Fruit Oil Chlorphenesin Stearic Acid Palmitic Acid Disodium EDTA Acrylates/C10-30 Alkyl Acrylate Crosspolymer Carbomer Prunus Amygdalus Dulcis Oil Xanthan Gum Ethylhexylglycerin Sodium Hydroxide Tocopherol Glycine Soja Oil Pseudoalteromonas Ferment Extract Myristic Acid Hydroxypalmitoyl Sphinganine BHT Salicylic Acid Citric Acid Water, Glycerin, Cyclohexasiloxane, Squalane, Bis-PEG-18 Methyl Ether Dimethyl Silane, Sucrose Stearate, Stearyl Alcohol, PEG-8 Stearate, Myristyl Myristate, Pentaerythrityl Tetraethylhexanoate, Prunus Armeniaca Kernel Oil, Phenoxyethanol, Persea Gratissima Oil, Glyceryl Stearate, Cetyl Alcohol, Oryza Sativa Bran Oil, Olea Europaea Fruit Oil, Chlorphenesin, Stearic Acid, Palmitic Acid, Disodium EDTA, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Prunus Amygdalus Dulcis Oil, Xanthan Gum, Ethylhexylglycerin, Sodium Hydroxide, Tocopherol, Glycine Soja Oil, Pseudoalteromonas Ferment Extract, Myristic Acid, Hydroxypalmitoyl Sphinganine, BHT, Salicylic Acid, Citric Acid Caprylic/Capric Triglyceride Butyrospermum Parkii Butter Olus Oil Cetyl Lactate Propanediol C12-16 Alcohols Caprylyl Caprylate/Caprate Jojoba Oil/Macadamia Seed Oil Esters Glyceryl Stearate Citrate Hydrogenated Lecithin Oryza Sativa Bran Extract Dilinoleic Acid/Propanediol Copolymer Squalene Ophiopogon Japonicus Root Extract Phytosteryl Sunflowerseedate Glycine Soja Extract Pentylene Glycol Ceramide NP Ceramide AP Ceramide EOP Hydrolyzed Rice Protein Chondrus Crispus Extract Hydrogenated Vegetable Glycerides Helianthus Annuus Extract Sodium Hyaluronate Phytosteryl Macadamiate Rosmarinus Officinalis Leaf Extract Aloe Barbadensis Leaf Juice Trisodium Ethylenediamine Disuccinate Phytosterols Sodium Lauroyl Lactylate Gluconolactone Phenethyl Alcohol Phytosphingosine Cholesterol Potassium Sorbate Sodium Benzoate Water, Caprylic/Capric Triglyceride, Glycerin, Butyrospermum Parkii Butter, Olus Oil, Cetyl Lactate, Propanediol, C12-16 Alcohols, Caprylyl Caprylate/Caprate, Jojoba Oil/Macadamia Seed Oil Esters, Glyceryl Stearate Citrate, Palmitic Acid, Hydrogenated Lecithin, Oryza Sativa Bran Extract, Dilinoleic Acid/Propanediol Copolymer, Squalene, Ophiopogon Japonicus Root Extract, Xanthan Gum, Phytosteryl Sunflowerseedate, Glycine Soja Extract, Pentylene Glycol, Ceramide NP, Ceramide AP, Ceramide EOP, Hydrolyzed Rice Protein, Chondrus Crispus Extract, Hydrogenated Vegetable Glycerides, Helianthus Annuus Extract, Sodium Hyaluronate, Citric Acid, Phytosteryl Macadamiate, Tocopherol, Rosmarinus Officinalis Leaf Extract, Aloe Barbadensis Leaf Juice, Trisodium Ethylenediamine Disuccinate, Phytosterols, Sodium Lauroyl Lactylate, Gluconolactone, Phenethyl 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. Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH. In skincare formulas, citric acid can: While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants. Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations. Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger. However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure. Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that: The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure. Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations. 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 ow