In the presence of 1mg of testosterone, 1mg EGCG inhibited growth 64% (castrated hampsters) compared to the same dose without EGCG, and 1mg curcumin inhibited it 87%. This could be 5ar inhibition or AR inhibition.
DHT grew 50% more than testosterone. Probably some testosterone is converted to DHT.
1mg EGCG applied with 1mg DHT inhibited growth 97%. EGCG was more effective against DHT than against testosterone. That makes me question the validity of the results.
EGCG stops as much sebum productionas GLA, and inhibits both types of 5ar, though preferentially 5ar1, so should compliment finasteride.
All 4 green tea compounds inhibited flank organ growth, but through different mechanisms.
EGCG bonded to GLA was no more potent than them individually. Also none of these have systemic effects. Only local.