Marcelle Retinol + Probiotic Night Serum Versus First Aid Beauty 0.3% Retinol Complex Serum with Peptides

Marcelle Retinol + Probiotic Night Serum Versus First Aid Beauty 0.3% Retinol Complex Serum with Peptides Detailed comparison of Marcelle Retinol + Probiotic Night Serum versus First Aid Beauty 0.3% Retinol Complex Serum with Peptides. This anti-aging serum is formulated around Retinol and Bakuchiol to soften the look of wrinkles and strengthen the skin barrier. This anti-aging serum is formulated around Retinyl Propionate and Retinol to soften the look of wrinkles and refine skin texture. Water Dimethicone Propanediol Glycerin Retinol Caprylic/Capric Triglyceride Bakuchiol Vaccinium Macrocarpon Fruit Extract Lactobacillus Ferment Tocopherol 1,2-Hexanediol Humulus Lupulus Extract Dimethiconol Polyacrylate Crosspolymer-6 Maltodextrin Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Potassium Sorbate Squalane Sodium Gluconate Caprylhydroxamic Acid Copernicia Cerifera Cera Citric Acid Polysorbate 20 Polysorbate 60 Helianthus Annuus Seed Oil Caprylyl Glycol Hydroxymethoxyphenyl Decanone Disodium Cocoamphodiacetate C13-16 Isoalkane T-Butyl Alcohol Xanthan Gum Ethyl Ferulate Water, Dimethicone, Propanediol, Glycerin, Retinol, Caprylic/Capric Triglyceride, Bakuchiol, Vaccinium Macrocarpon Fruit Extract, Lactobacillus Ferment, Tocopherol, 1,2-Hexanediol, Humulus Lupulus Extract, Dimethiconol, Polyacrylate Crosspolymer-6, Maltodextrin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Potassium Sorbate, Squalane, Sodium Gluconate, Caprylhydroxamic Acid, Copernicia Cerifera Cera, Citric Acid, Polysorbate 20, Polysorbate 60, Helianthus Annuus Seed Oil, Caprylyl Glycol, Hydroxymethoxyphenyl Decanone, Disodium Cocoamphodiacetate, C13-16 Isoalkane, T-Butyl Alcohol, Xanthan Gum, Ethyl Ferulate Retinyl Propionate Pentapeptide-34 Trifluoroacetate Hydroxyacetophenone Dimethicone Crosspolymer Disodium EDTA Isohexadecane Laureth-4 Mica Sodium Citrate Sorbitan Isostearate BHT Phenoxyethanol Sodium Benzoate CI 77891 Water, Dimethicone, Glycerin, Retinyl Propionate, Retinol, Pentapeptide-34 Trifluoroacetate, Hydroxyacetophenone, Caprylic/Capric Triglyceride, Citric Acid, Dimethicone Crosspolymer, Dimethiconol, Disodium EDTA, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Isohexadecane, Laureth-4, Mica, Polysorbate 20, Polysorbate 60, Propanediol, Sodium Citrate, Sorbitan Isostearate, BHT, Phenoxyethanol, Sodium Benzoate, CI 77891 These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss. Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid. In practice, that translates to a long shelf life and a consistently elegant skin feel. While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns. Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source. This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out. This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%. 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. Dimethicone is a type of synthetic silicone created from natural materials such as quartz. 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