Curology Custom Formula (Tretinoin 0.009%, Clindamycin 1%, Azelaic Acid 9%) Versus The Ordinary Azelaic Acid Suspension 10%
Updated on July 23, 2025
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 1 ingredients in common
Suited For
They're both likely to be good for fighting acne, anti aging, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, 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
Curology Custom Formula (Tretinoin 0.009%, Clindamycin 1%, Azelaic Acid 9%) 4 ingredients
The Ordinary Azelaic Acid Suspension 10% 17 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
Curology Custom Formula (Tretinoin 0.009%, Clindamycin 1%, Azelaic Acid 9%) 4 ingredients
The Ordinary Azelaic Acid Suspension 10% 17 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningIsodecyl Neopentanoate
EmollientDimethicone
Emollient
Azelaic Acid
Buffering
Dimethicone/Bis-Isobutyl PPG-20 Crosspolymer
EmollientDimethyl Isosorbide
SolventHydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingPolysilicone-11
Isohexadecane
EmollientTocopherol
Antioxidant
Trisodium Ethylenediamine Disuccinate
Isoceteth-20
Emulsifying
Polysorbate 60
Emulsifying
Triethanolamine
BufferingEthoxydiglycol
HumectantPhenoxyethanol
Preservative
Chlorphenesin
Antimicrobial
Water, Isodecyl Neopentanoate, Dimethicone, Azelaic Acid, Dimethicone/Bis-Isobutyl PPG-20 Crosspolymer, Dimethyl Isosorbide, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polysilicone-11, Isohexadecane, Tocopherol, Trisodium Ethylenediamine Disuccinate, Isoceteth-20, Polysorbate 60, Triethanolamine, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Azelaic acid is a multitasker ingredient that helps treat acne, pigmentation, and irritation. It is a great option for sensitive skin.
What makes azelaic special?
The best thing about azelaic acid is it's gentleness. It's generally well-tolerated and safe to use alongside other actives like niacinamide or salicylic acid.
Unlike AHAs, azelaic acid will not make you photosensitive/sun sensitive.
You can find this ingredient naturally occurring in grains like wheat, rye, and barley. In cosmetics, azelaic acid is typically lab-made, which is more stable and effective.
Learn more about Azelaic AcidIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Curology Custom Formula (Tretinoin 0.009%, Clindamycin 1%, Azelaic Acid 9%) 4 ingredients
The Ordinary Azelaic Acid Suspension 10% 17 ingredients
Reviews
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