The Ordinary Niacinamide 10% + Zinc 1% Versus La Roche-Posay EFFACLAR K+
Updated on March 04, 2025
Overview
What they are
These products are both reef safe . They have a total of 4 ingredients in common
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, 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
The Ordinary Niacinamide 10% + Zinc 1% 11 ingredients
La Roche-Posay EFFACLAR K+ 24 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
The Ordinary Niacinamide 10% + Zinc 1% 11 ingredients
La Roche-Posay EFFACLAR K+ 24 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPropylene Glycol
Humectant
Octyldodecanol
EmollientDimethicone
Emollient
PEG-100 Stearate
Glyceryl Stearate
Emollient
Salicylic Acid
Masking
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingZinc PCA
Humectant
Sarcosine
Skin ConditioningSodium Hydroxide
BufferingSilica
Abrasive
Silica Silylate
EmollientPerlite
AbsorbentCarnosine
Skin Conditioning
Disodium EDTA
Capryloyl Salicylic Acid
Exfoliating
Xanthan Gum
EmulsifyingPentylene Glycol
Skin ConditioningAcrylates Copolymer
Cetyl Alcohol
Emollient
Butylene Glycol
Humectant
Tocopherol
Antioxidant
Parfum
Masking
Water, Propylene Glycol, Octyldodecanol, Dimethicone, PEG-100 Stearate, Glyceryl Stearate, Salicylic Acid, Ammonium Polyacryloyldimethyl Taurate, Zinc PCA, Sarcosine, Sodium Hydroxide, Silica, Silica Silylate, Perlite, Carnosine, Disodium EDTA, Capryloyl Salicylic Acid, Xanthan Gum, Pentylene Glycol, Acrylates Copolymer, Cetyl Alcohol, Butylene Glycol, Tocopherol, Parfum
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolWater. 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 WaterXanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumZinc PCA (or "zinc salt") differs slightly from zinc itself. PCA stands for pyrrolidone carboxylic acid. However, Zinc PCA comes from zinc.
It can help reduce redness, regulate sebum, and promote the general healing process of the skin.
Zinc PCA tends to be especially useful for those with oily, acne-prone skin. It's certainly an ingredient worth trying out!
Learn more about Zinc PCAIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The Ordinary Niacinamide 10% + Zinc 1% 11 ingredients
La Roche-Posay EFFACLAR K+ 24 ingredients
Reviews
Here's what our community thinks
