xandrox is basically a more expensive version of minoxidil with an added DHT inhibitor.
Dr. Lee sells it on his site only. It has less ppg in it which is better for the scalp and it comes with Azelaic acid which has been shown to be a proven DHT inhibitor. You can also get it with retin-a and betamethasone(anti-inflammatory) added, but Dr. Lee states these arent neccessary to get results.
I just ordered xandrox with the azelaic only from Dr. Lee long with some spironolactone since I'm considering going to a strictly topical regimen when my proscar runs out.
Dr. Lee has been very good about responding to my emails. If you check my other thread here he goes in depth about his topical treatments.
According to him, finasteride even at a 5mg/day dose only lowers DHT in the scalp around 40%. So it would seem to me that a topical inhibitor is needed for those with sensitive receptors.
cya