The product manufacturer will be biased. Of course they will support the claim, because they make money if you believe the claim and buy their product.
It's better to consult the other sources, assuming of course that they are unbiased and do not have any conflicts of interest.
A and B
I don’t have an explanation I just know it
Answer:
welp it all depends on the type of product it would be
Explanation:
see if you look online b4 u buy it and seek if there's som ur allergic to
