Yes, Duta can inibit 95% of DHT and Fin 65-75%
dont forget Duta take time to build , that 95% inhibiton is only after at least 1or2 months taking it,
for those who are concerned about their hair, the best cycle would be a low test dose with FIN or DUTA... The higher the test, the higher the dose of AR5 inhibitors should be because the DHT of the 250mg test will always be less than of the 500mg test ,
another compound "safe" to run with Test should be Bold, FIN/DUTA will stop conversion do DHB , just keep a eye in E2 it can get low.
but in the for who suffer from hairloss natural steroids will speed up things
others run gear year round , tren and shits , and in theirs 40´s 50´s and still have a great hair