Link/Source?It's just their own formula and we haven't seen any benefits of Parati over Trichosol. Two different users tried it, after one week of usage, Parati decreased serum DHT by 6% while Trichosol dropped 4%. If these findings are correct (also need to add that the user who used Trichosol used 2-3x the dose) I think with the current data, Parati goes more systemic than Trichosol but we don't have enough data to say either way is correct.