Hi Eddyeddy,
Welcome to the forum.
The simple answer is don’t bother with penis pills, they don’t work.
The slightly more involved answer is penis pills may help to increase the power of erections and the ease with which a full erection is achieved, so they have a use as an aid in keeping a good quality erection whilst performing PE exercises to make the permanent gains. However they are generally a mix of cheap ingredients which are best purchased separately or in a combination not sold as a ‘Penis Pill’. I’ve used Male Response (around $9.99 a bottle) which has the majority of ingredients found in penis pills and does stimulate erections but I found that they were not necessary once my PE programme progressed.
With penis patches, oils don’t even bother.
Viagra is used by a number of people here as a complement to a PE exercise regimen to aid with erection quality. If you find erection quality variable its worth considering after the first couple of months of PE but within that time erection quality should improve from Jelqing and kegels.
There has been some discussion of transdermal DHT here, though some people have claimed gains I’m not aware of any reputable member here who has done so. The considered opinion of a pharmacist on the forum was that it may effect lifespan and hairloss negatively.
For more information on supplements and the specific qualities of a particular supplement try reading a few threads and searching in the supplement forum.
Hope that helps.