So I took the seeds for a while and didn't really see a big difference. Probably at the very beginning but it was more of a placebo effect I believe.
I've never had issues with precumming anyways, so not that I needed it, but still wanted to try. I am getting older though, so a decrease in arousal is starting to happen.
What has helped me is the zinc tablets. I know there are some side effects and we're not supposed to take more than a certain amount per day, but I've been taking them for a while, and while the volume of precum or semen hasn't increased, I do feel like I get hard easier than before, and even the morning woods have returned.
Another thing that also helps the precum flow is this new (to me) lube I found at Target
Again, I don't know if it's just the placebo effect, but it supposedly has horny goat weed, ashwagandha and black cohosh. I don't really use it as my main lube, I just apply a few drops to begin with, focusing on the head of the penis, and then a little bit I spread throughout the shaft and balls, kinda "let it work" for a minute and then I start masturbating with my usual lube which is unscented mineral oil.
I don't really feel anything in particular, for example I tried another one by Astroglide that was supposed to be stimulant, but that one just feels like a watered down menthol. This one doesn't give you any particular sensation, but it does make you feel more sensitive to the touch, and like the erection feels more vibrant and intense, like you can really see your dick throbbing, but once again, I don't know if it's just the placebo effect.
Whatever the case, the precum starts flowing like a faucet, but I was already a good precummer anyways, it's just that it starts to happen faster than before.