If anyone feels extra daring and wants to replicate R-Andro, use DHB with the compound. R-Andro contained Androsterone and DHB to enhance and prolong the effects of Androsterone. DHB is grapefruit extract. Grapefruit extract inhibits the CYP3A4 enzyme which is the enzyme that's responsible for metabolizing hormones out. Also the enzyme that metabolizes Fin and Dut out.

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