Well if you don't necessarily want the cow manure, monkey feces, or whatever the deal is with Shilajit, then I'd recommend the pure fulvic acid you can get from the Netherlands (and from the US if in the US) which is called pure and fulvic (and something else in the US), it's a liquid and I can say that back when I used it 30-50 ml or so certainly gave obvious effect (mostly a little bit stimulating, some increased blood flow), tho I would say if all you want is a sort of stimulating feeling the Jarrow Shilajit tablets are cheaper than pure&fulvic are cheaper (but probably do contain some small amount of lead, I think they actually got some statement on that from their supplier).
https://www.health-s...acid-151-detail the website is a little bit weird sometimes but they seems solid, and I believe the guy who is involved in the production US-side of this or anyway alleges to know a thing or two about fulvic acid is this dude https://www.youtube....rfist800/videos