Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment Versus FaceTheory Azeclear Azelaic Acid Serum A15
Updated on August 07, 2025
Overview
Cool Features
They both contain exfoliants
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any common allergens, oils, parabens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment 45 ingredients
FaceTheory Azeclear Azelaic Acid Serum A15 18 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment 45 ingredients
FaceTheory Azeclear Azelaic Acid Serum A15 18 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningNiacinamide
Smoothing
Isononyl Isononanoate
EmollientDimethyl Isosorbide
SolventTranexamic Acid
Astringent
Dimethicone
Emollient
Propanediol
Solvent
Pentylene Glycol
Skin ConditioningCaprylic/Capric Triglyceride
Masking
Alpha-Arbutin
Antioxidant
Glyceryl Stearate
Emollient
C9-12 Alkane
SolventCetyl Alcohol
Emollient
Butyrospermum Parkii Butter
Skin Conditioning
Citric Acid
Buffering
Kojic Acid
Antioxidant
Morus Alba Root Extract
BleachingResveratrol
Antioxidant
Scutellaria Lateriflora Extract
Skin ConditioningHydrangea Arborescens Root Extract
Skin ConditioningSqualane
Emollient
Hydrolyzed Vegetable Protein
Skin ConditioningPhenoxyethanol
Preservative
PEG-100 Stearate
Tocopheryl Acetate
Antioxidant
Polyacrylate Crosspolymer-6
Emulsion StabilisingPEG-75 Stearate
Ceteareth-20
Cleansing
Steareth-20
CleansingSilica
Abrasive
Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer
Emulsion StabilisingDimethiconol
Emollient
Coco-Caprylate/Caprate
Emollient
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingTitanium Dioxide
Cosmetic Colorant
Sodium Phytate
Diethylhexyl Syringylidenemalonate
Skin ProtectingPotassium Sorbate
Preservative
Sodium Benzoate
Masking
Polysorbate 60
Emulsifying
Polysorbate 20
Emulsifying
T-Butyl Alcohol
Perfuming
Caprylyl Glycol
Emollient
Hexylene Glycol
EmulsifyingSorbitan Isostearate
Emulsifying
Water, Niacinamide, Isononyl Isononanoate, Dimethyl Isosorbide, Tranexamic Acid, Dimethicone, Propanediol, Pentylene Glycol, Caprylic/Capric Triglyceride, Alpha-Arbutin, Glyceryl Stearate, C9-12 Alkane, Cetyl Alcohol, Butyrospermum Parkii Butter, Citric Acid, Kojic Acid, Morus Alba Root Extract, Resveratrol, Scutellaria Lateriflora Extract, Hydrangea Arborescens Root Extract, Squalane, Hydrolyzed Vegetable Protein, Phenoxyethanol, PEG-100 Stearate, Tocopheryl Acetate, Polyacrylate Crosspolymer-6, PEG-75 Stearate, Ceteareth-20, Steareth-20, Silica, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Dimethiconol, Coco-Caprylate/Caprate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Titanium Dioxide, Sodium Phytate, Diethylhexyl Syringylidenemalonate, Potassium Sorbate, Sodium Benzoate, Polysorbate 60, Polysorbate 20, T-Butyl Alcohol, Caprylyl Glycol, Hexylene Glycol, Sorbitan Isostearate
Water
Skin ConditioningPropanediol
Solvent
Butyloctyl Salicylate
Skin Conditioning
Azelaic Acid 15%
Buffering
Polyglyceryl-6 Stearate
Emollient
Glycerin
Humectant
Polyglyceryl-4 Oleate
Emulsifying
Avena Sativa Kernel Flour
Abrasive
Glyceryl Caprylate
EmollientSodium Anisate
AntimicrobialSodium Levulinate
Skin ConditioningPolyglyceryl-6 Behenate
Emulsion Stabilising
Rosa Canina Fruit Extract
Astringent
Cetyl Hydroxyethylcellulose
Emulsion StabilisingXanthan Gum
EmulsifyingSodium Phytate
Aloe Barbadensis Leaf Juice
Skin Conditioning
Camellia Sinensis Leaf Extract
Antimicrobial
Water, Propanediol, Butyloctyl Salicylate, Azelaic Acid 15%, Polyglyceryl-6 Stearate, Glycerin, Polyglyceryl-4 Oleate, Avena Sativa Kernel Flour, Glyceryl Caprylate, Sodium Anisate, Sodium Levulinate, Polyglyceryl-6 Behenate, Rosa Canina Fruit Extract, Cetyl Hydroxyethylcellulose, Xanthan Gum, Sodium Phytate, Aloe Barbadensis Leaf Juice, Camellia Sinensis Leaf Extract
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.Â
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolSodium Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds.
Sodium Phytate is a chelating agent. Chelating agents help prevent metals from binding to water. This helps stabilize the ingredients and the product.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment 45 ingredients
FaceTheory Azeclear Azelaic Acid Serum A15 18 ingredients
Reviews
Here's what our community thinks
Be the first to review PRO Strength Niacinamide Discoloration Treatment
Write the first review
