Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment Versus Allies of Skin Tranexamic & Arbutin Advanced Brightening Serum

Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment Versus Allies of Skin Tranexamic & Arbutin Advanced Brightening Serum Detailed comparison of Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment versus Allies of Skin Tranexamic & Arbutin Advanced Brightening Serum. This brightening treatment is formulated around Niacinamide and Tranexamic Acid to fade the look of dark spots and brighten dull-looking skin. This brightening serum is formulated around Tranexamic Acid and Alpha-Arbutin to fade the look of dark spots and brighten dull-looking skin. No concerns Water Niacinamide Dimethyl Isosorbide Isononyl Isononanoate Tranexamic Acid Dimethicone Caprylic/Capric Triglyceride Alpha-Arbutin Cetyl Alcohol Glyceryl Stearate Pentylene Glycol Propanediol C9-12 Alkane Citric Acid Glyceryl Stearate Se Butyrospermum Parkii Butter Tetrahexyldecyl Ascorbate Kojic Acid Resveratrol Tocopheryl Acetate Diethylhexyl Syringylidenemalonate Hydrangea Arborescens Root Extract Morus Alba Root Extract Scutellaria Lateriflora Extract Hydrolyzed Vegetable Protein Silica Sodium Stearoyl Glutamate Coco-Caprylate/Caprate Dimethiconol Glycerin Sodium Phytate Potassium Sorbate Sodium Benzoate Caprylyl Glycol Hexylene Glycol Polysorbate 20 Ceteth-20 Steareth-20 Polyacrylate Crosspolymer-6 PEG-75 Stearate Titanium Dioxide Phenoxyethanol Water, Niacinamide, Dimethyl Isosorbide, Isononyl Isononanoate, Tranexamic Acid, Dimethicone, Caprylic/Capric Triglyceride, Alpha-Arbutin, Cetyl Alcohol, Glyceryl Stearate, Pentylene Glycol, Propanediol, C9-12 Alkane, Citric Acid, Glyceryl Stearate Se, Butyrospermum Parkii Butter, Tetrahexyldecyl Ascorbate, Kojic Acid, Resveratrol, Tocopheryl Acetate, Diethylhexyl Syringylidenemalonate, Hydrangea Arborescens Root Extract, Morus Alba Root Extract, Scutellaria Lateriflora Extract, Hydrolyzed Vegetable Protein, Silica, Sodium Stearoyl Glutamate, Coco-Caprylate/Caprate, Dimethiconol, Glycerin, Sodium Phytate, Potassium Sorbate, Sodium Benzoate, Caprylyl Glycol, Hexylene Glycol, Polysorbate 20, Ceteth-20, Steareth-20, Polyacrylate Crosspolymer-6, PEG-75 Stearate, Titanium Dioxide, Phenoxyethanol C13-15 Alkane Palmaria Palmata Extract Hydrolyzed Pea Asparagopsis Armata Extract Ascophyllum Nodosum Extract Glycyrrhiza Glabra Root Extract Pancratium Maritimum Extract Ganoderma Lucidum Extract Lentinus Edodes Extract Lactobacillus Ferment Hydrolyzed Pea Protein Diacetyl Boldine Dipotassium Glycyrrhizate Lactobacillus Bisabolol Panthenol Tocopherol Glucose Arginine/Lysine Polypeptide Pentapeptide-34 Trifluoroacetate C14-22 Alcohols Xanthan Gum Hydrogenated Starch Hydrolysate Hydroxyacetophenone Sorbitan Caprylate 1,2-Hexanediol C12-20 Alkyl Glucoside Carbomer Butylene Glycol Sodium Chloride Sodium Succinate Sorbic Acid Water, Caprylic/Capric Triglyceride, C13-15 Alkane, Tranexamic Acid, Glycerin, Alpha-Arbutin, Pentylene Glycol, Tocopheryl Acetate, Palmaria Palmata Extract, Hydrolyzed Pea, Asparagopsis Armata Extract, Ascophyllum Nodosum Extract, Glycyrrhiza Glabra Root Extract, Pancratium Maritimum Extract, Ganoderma Lucidum Extract, Lentinus Edodes Extract, Lactobacillus Ferment, Hydrolyzed Pea Protein, Diacetyl Boldine, Dipotassium Glycyrrhizate, Lactobacillus, Bisabolol, Panthenol, Tocopherol, Glucose, Arginine/Lysine Polypeptide, Pentapeptide-34 Trifluoroacetate, C14-22 Alcohols, Xanthan Gum, Hydrogenated Starch Hydrolysate, Hydroxyacetophenone, Sorbitan Caprylate, 1,2-Hexanediol, Caprylyl Glycol, C12-20 Alkyl Glucoside, Propanediol, Carbomer, Sodium Phytate, Butylene Glycol, Sodium Chloride, Sodium Succin Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Alpha-Arbutin is a brightening active used to fade dark spots, melasma, and post-acne marks. Structurally, it is a hydroquinone with a sugar molecule attached (but is much gentler than raw hydroquinone). It has a pretty elegant way of working; it slots into tyrosinase, or the key enzyme that your skin uses to make melanin), and competitively blocks it so your skin produces less pigment over time. There are two forms of arbutin and alpha is the better one to reach for: it works at lower amounts, absorbs into skin more easily, and has a strong safety record. The science backs this up too: lab and animal studies confirm it lowers melanin by blocking tyosinase and the more you use (up to a point), the more it works. Human studies look good too. A 2024 trial found a cream with 5% alpha-arbutin and 2% kojic acid worked about as well as a prescription melasma cream but with fewer side effects. Another study showed 2% alpha-arbutin paired with 10% Trihydroxybenzoic Acid Glucoside and sunscreen faded dark spots and melasma without causing irritation. Concentration-wise, most serums land in the 1-2% range. The EU's Scientific Committee on Consumer Safety concluded that alpha-arbutin is safe in face creams up to 2% and body lotions up to 0.5%. Overall, this is a well-studied and low-irritation brightener that's a great pick for anyone dealing with uneven skin tone. It also pairs well with vitamin C, niacinamide, and sunscreen. 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%. Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synth