This is what makes Azelaic Acid so good - and versatile. It has numerous functions and treats a variety of skin concerns without any serious side effects.
A keeper ☺.

Azelaic Acid myths and misconceptions
“Azelaic Acid contains gluten, and if I apply it, I’ll have an adverse reaction due to my gluten intolerance..”
As mentioned earlier, there may be confusion around the fact that certain grains contain Azelaic Acid.
At SKOON. we use (gluten-free) Azelaic Acid, bio-engineered from RSPO certified palm oil. So, no worries there.
If you are concerned, you need to contact the relevant brand, to clarify their source.
Read How much azelaic acid to use ?