Because these drugs exaggerate the curative effect to varying degrees. What's more, they will use fake and inferior products.
Don't trust celebrity endorsements. Isn't Sanlu milk powder also endorsed by celebrities? Some stars only make money and don't use these products at all. Their agents look at the quality inspection reports of these products at most. If you want a star to personally try out the products they endorse, I believe they can't help!
So I suggest you don't believe it!
The products on TV are not targeted, because each of us has different winning physique, so the effect on individuals is different, and what TV often shows you is the best! This is unbelievable!