HealthKart HK Vitals Caffeine 200 mg, Natural Stimulant, for Energy, Endurance, and Focus, 90 Capsules

have tried many caffeine tab brands , but this one does the job perfect .

I used it for night wake up during ramzaan and it worked .

If you're planning to purchase a caffeine pill then you can buy this one blindfolded. This is never going to disappoint you. I work in 2 shifts so I need this pill many times because of drowsiness. It keeps me focused even at work but also in studies as well. Do not misuse caffeine.

I'll say it's a worthless product. No kick and not working in any sense. I thought it was a HealthKart product so it would work.

It didnt work the way, my previous supplement worked, effect of caffeine after an hour & that also for few minutes & again I m back to scratch. This much I could get by drinking a coffee only !I tried searching on youtube about reviews , not sure how but youtubers say it has an effect for 6 hours, I litteraly started sleeping after 2 hours !For me it was effective but very minor !Seems I may have to switch back to my previous supplement .

This product is the only thing that keeps me awake at night for late night studies. Nothing else works for me. It's effective. Period.

I am using this product from past as a pre-workout supplement but i never got this product for these price and ya its a original product will buy again online instead of buying it from retail shop for the printed price...and for who doesn't know what caffeine is " Caffeine is a natural central nervous system stimulant and energy booster which is why it tops the rank in pre-workout supplement range ".

It comes in capsules which you have to swallow whole. 100mg caffeine is equivalent to a full cup of coffee. So 200mg is a bit too much for daily use. But since these not normal capsules which you can break as you wish, you don't get an option to consume less..Btw, caffeine from any manufacturer who has a reasonable reputation is standard, just as this caffeine is. So that if you need caffeine, ensure it is a tablet which you can break into two and not a capsule like this so that you can choose to take 1 cup of coffee rather than flush your system with it. I should have asked here in advance, too bad they don't take returns even for unopened boxes..