How old are you and are you male? I started my son on DIM. He is taking 2 tablets. It did not clear him at all but there was minor improvement. He's now also taking saw palmetto as well, 320 mg one per day.
I am curious what dose DIM are you taking that cleared you? My son is 13 so I don't want him overdoing it.
You should get your son off that stuff if you want him to develop properly.
On the flip side, you want to help control DHT now, unless your son wants to be bald at 16.
Please, if you have nothing more to add than the "oh my gosh don't mess with testosterone even if it's causing problems", just don't say anything at all. It is a very shallow and uninformed comment to make. 320mg of saw palmetto is not going to inhibit proper male development in the slightest.