In one review, vitamin D used as a male fertility supplement was associated with a consistent effect on sperm quality, improving motility as well as capacitation (the final changes a sperm undergoes before fertilizing the egg)
"No insurance, bloodwork, or tests needed." Per the platform's FAQ, bloodwork is only recommended when medically appropriate and guided by your provider - it is not automatically required
However, the two compounds greatly differ in their effects
L-carnitine L-tartraat (1500 mg), HPMC (vegetarische capsuleomhulling), magnesiumstearaat
What does L-Carnitine actually do, and is it really worth injecting into your muscle, or stomach