Synergy Therm Cosmetics Azelaic Acid Serum Versus Anua Niacinamide 10% + TXA 4% Dark Spot Correcting Serum
Updated on January 09, 2025
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 3 ingredients in common
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, sensitive skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, parabens or silicones
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
Synergy Therm Cosmetics Azelaic Acid Serum 10 ingredients
Anua Niacinamide 10% + TXA 4% Dark Spot Correcting Serum 51 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Synergy Therm Cosmetics Azelaic Acid Serum 10 ingredients
Anua Niacinamide 10% + TXA 4% Dark Spot Correcting Serum 51 ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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 WaterButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Xanthan 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 GumIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Synergy Therm Cosmetics Azelaic Acid Serum 10 ingredients
Anua Niacinamide 10% + TXA 4% Dark Spot Correcting Serum 51 ingredients

Reviews
Here's what our community thinks
Synergy Therm Cosmetics Azelaic Acid Serum 10 ingredients
One of the best azelaic acid serums that I've ever tried! It is a bit sticky, but the results don't lie. I saw results in 1 month from using it nightly. There isn't any other active ingredients in this as well, which I really like. All of the other azelaic acid serums on the market contain BHA's and AHA's, and I personally just want a serum with azelaic acid. It also made a much bigger difference Show more
Anua Niacinamide 10% + TXA 4% Dark Spot Correcting Serum 51 ingredients
I'm very pleased with the results of this product. Within 2 weeks, it was able to remove most of the stubborn dark spots/scaring that was on my temple area. Despite having fragrance in the formulation, I actually didn't notice any irritation or breaking out after using it. It's nice that the product isn't too expensive either (Roughly $20 on Amazon when I purchased at the time) I also find the Show more
I’ve been using this for three months now on sensitive and reactive skin. I had no bad response, no irritation or breaking out. I use it both morning and night, and I believe some results are there - dark marks are slowly fading, and any spots I’ve had while using this leave less of a dark mark than they used to.
Between this and skin1004 tone brightening capsule serum, I think this has had Show more