Will taking testosterone pills increase a man's libido?

My boyfriend who is only 25 has Erectile Dysfunction. He seems to have a very low libido which we think is causing his Erectile Dysfunction. We've tried all the male enhancements and plenty of other things. We think that since he has a low desire for sex, it's because of his testosterone levels. So if he began... show more My boyfriend who is only 25 has Erectile Dysfunction. He seems to have a very low libido which we think is causing his Erectile Dysfunction. We've tried all the male enhancements and plenty of other things. We think that since he has a low desire for sex, it's because of his testosterone levels. So if he began taking testosterone pills, would that increase his libido?
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