Sub-q to the belly, like pinning slin, no brainer.
Dosage depends on your skin type. If you can get a tan naturally, you will need:
1mg/day for 2 weeks, after that 0.5mg e3d to keep the tan.
If you are like me, who NEVER gets a tan -but get burned, turns red and skin peels, you may need:
1mg/d for 4 weeks.
You must "activate" it by 5-10 min sun exposure, 20 min after pinning. Not doing so results in a "dirty tan", like greyish skin.
Be aware:
-moles get darker, very visible in the beginning, until surrounding skin gets dark too
-it might get you some stomach discomfort after pinning, easily avoided by taking a OTC antihistamine an hour before.
Some get it, some (me) not.
-it might give you erections all day (Yeah baby!)
-it might turn you anorexic (curbs hunger) , did it for me the first couple of month, now gone.