Sildenafil
from
$40/MO
The science behind it:
Sildenafil is a PDE5 (phosphodiesterase enzyme type 5) inhibitor that helps improve blood flow to specific tissues, including the penis. Sildenafil acts by blocking an enzyme that reduces blood flow in the penis. By inhibiting this enzyme, it allows for increased blood flow to the penis, which can lead to an improved ability to achieve and sustain an erection.
