Maximum dosages vary in a very extreme way.
Caucasians, for instance, seem to “overdose” with something like androstenone far faster than Asians.
Meat eaters faster than vegetarians.
Supplementers (vitamin takers) faster than "I get everything I need from my food"ers.
If you OD on androstenone easily, I’d say 20 to 30 would be your absolute max, with 1mcg to 10mcg being good ranges to experiment with initially.
You don’t don’t OD on androstenone easily, 5 to 25 would probably be good to conduct your initial experiments with, with 50 being an absolute maximum.