DHT isn't recommended for anyone that is less than 2 years on T. That is when growth maximizes for most people. It occurs in spurts, so if you're under 2 years on T you most likely are not done growing yet. It just takes time.
The way DHT works is it attaches to any available androgen receptors in your junk, causing growth. This is why it doesn't work for some people - if there are no androgen receptors left due to prolonged T use, then no additional growth can be had with DHT. That's also partially why it isn't recommended until you've been on T for 2 years. T is enough for most people to get decent growth. DHT should be seen and used as a last resort for genital growth. It is very expensive compared to T and it puts unnecessary stress on the body, not to mention the side effects like hair loss. My doctor won't write a prescription for it for anyone who hasn't been on T for 2 years and isn't having metoidioplasty done.
It gets absorbed into the body and will raise overall T levels, but it doesn't covert to estrogen. Some people talk about seeing some additional body hair growth on DHT, but that is the only thing I've heard of in terms of masculinization. I've never heard of voice changes, fat redistribution, etc. that can be attributed solely to DHT.
It's not available in the United States period, you have to import it. It also is no longer available in the 10% concentration. You can get Andractim, which is a 2.5% DHT gel from All Saints Clinic in Cyprus. You would need to email them your prescription and they would include it in the package so that when it gets opened at customs, it's clear that you have a prescription for it.
I've been on it for a little over 2 months now and have had no changes whatsoever.
