Crayola is sort of meh, but I always get at least one parent asking about allergens in the different art supplies. Crayola states it does not have a, b, c......z.
The others may not have it either, but they don't usually state allergen free.
School art or a serious art class?
You know primo supplies are open your wallet and scream.
I don't like knock offs but I can't justify high end stuff for the class. Never had issues with Crayola.
What grades? That would be a consideration too..