The short answer: no, it will not. However, it's not a completely useless charm, so congrats on that!
At first, while Matt can tell the tag is unsuccessful in its mission, he can't completely make out what it is he actually made. There is magic in it, and after some debate, he puts it on to find his sexual libido completely eradicated. To put it crudely: while wearing the charm, he is incapable of maintaining an erection or, should someone with a vagina put it on, incapable of getting wet. He has effectively created a chastity charm for himself. Yay!
EDIT: (with permission) Matt will also find that after putting on the charm, he is incapable of taking it off himself, and requires a helping hand to physically remove it.
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At first, while Matt can tell the tag is unsuccessful in its mission, he can't completely make out what it is he actually made. There is magic in it, and after some debate, he puts it on to find his sexual libido completely eradicated. To put it crudely: while wearing the charm, he is incapable of maintaining an erection or, should someone with a vagina put it on, incapable of getting wet. He has effectively created a chastity charm for himself. Yay!
EDIT: (with permission) Matt will also find that after putting on the charm, he is incapable of taking it off himself, and requires a helping hand to physically remove it.