Those ingredients in those dosages are useless. Literally one bite of a McDonald’s hamburger would be better for building muscle than a dose of that crap.
So either every review of the product is a lie and it’s a junk product being peddled by scam artists or it’s laced with some kind of low-quality steroid or prohormone that obviously isn’t listed on the label (That’s not an uncommon practice with no-name supplement companies).
Neither of those options are a good way to go. The first one means you’re taking ineffective garbage, the second one means you’re risking serious long-term damage. Your best bet is to toss it.
At 14, you can see ridiculous progress with a decent training program and good eating.