The main ingredient in Kamagra Oral Jelly is sildenafil, which is also found in many other ED medications. It's a PDE5 inhibitor that blocks the activity of the enzymes in your penis that break down cGMP, causing the blood vessels to relax and increase blood flow to the penis. This leads to a stronger, longer-lasting erection.

But because Kamagra Oral Jelly doesn't have the FDA's approval, it's not considered to be as safe and effective as other ED pills. The lack of approval means that the dosages and purity of the active ingredients can vary from batch to batch, and that there's less control over the quality of the medicine.