Many people assume tadalafil is only for sex, but it's actually a highly effective tool for blood flow, cardiovascular health, and potentially hair health. If you're new to tadalafil, its brand name is Cialis. It's a PDE5 inhibitor and it stays active for about 17.5 hours vs. Viagra's 4 hours. + Tadalafil is known for supporting erections. It helps with blood flow, but it doesn't create "desire." + It also helps with cardiovascular health. Large cohort studies tracking over a million men show association between regular PDE5 inhibitor use and lower rates of cardiovascular events + It may also help with hair health, which I take it for since it improves scalp circulation because it boosts blood flow. FDA-approved daily dosing is 2.5 to 5 mg for steady, consistent levels. I take 5 mg in the morning and 5 mg in the evening. It's a prescription drug, so you need your doctor's blessing for this one.