How much caffeine is in Mr. Hyde Pre-Workout?

One scoop of Mr. Hyde Pre-Workout (Infinite) has 190 mg of caffeine.

That's about 2 cups of brewed coffee, and half of the 400 mg a day the FDA cites for most healthy adults.

Source: prosupps.com · checked 10 Nov 2026

When did you have it?

Had at 3 pm, about 66 mg is still in you at an 11 pm bedtime. That might affect your sleep.

Bedtime

Add this to my day

Your whole day, every drink, in the free CaffeineIQ check. The iPhone app is coming soon.

Sizes

Size	Volume	Caffeine	mg per fl oz
1 scoop, Infinite shown above		190 mg
2 scoops, Nightmare		300 mg

Source: prosupps.com · checked 10 Nov 2026

Latest time to drink it

For an 11 pm bedtime, most people should finish one scoop of Mr. Hyde Pre-Workout (Infinite) by about 12:55 pm. The table works it out for other bedtimes and for how sensitive you are: it is the latest time to start one so that the caffeine left stays under the line all night.

Bedtime	Very sensitive under 25 mg	Average under 50 mg	Not very sensitive under 100 mg
9 pm	5:55 am	10:55 am	3:55 pm
10 pm	6:55 am	11:55 am	4:55 pm
11 pm	7:55 am	12:55 pm	5:55 pm
Midnight	8:55 am	1:55 pm	6:55 pm
1 am	9:55 am	2:55 pm	7:55 pm

For one scoop of Mr. Hyde Pre-Workout (Infinite), average clearance (half-life 5 h), 8 hours of sleep. "Any time" means even one at bedtime stays under the line.

How long it lasts

The caffeine from one scoop of Mr. Hyde Pre-Workout (Infinite) peaks in your blood about 70 minutes after you start it, at roughly 162 mg. Half of it is gone in about 5 hours for an average adult; that ranges from roughly 3 to 7 hours, and longer in pregnancy or with some medicines.

Time after	3 hours	6 hours	9 hours	12 hours
Still in you	132 mg	87 mg	57 mg	38 mg

So one had at 3 pm leaves about 66 mg at 11 pm. How long caffeine lasts explains the curve.

How it compares

Mr. Hyde Pre-Workout is stronger than 58% of the 34 supplements and medicines we track, by caffeine per serving.

To reach 400 mg in a day you would need about 2 of these.

Less caffeine

Gold Standard Pre-Workout 175 mg, 1 scoop
C4 Ripped 150 mg, 1 scoop
Goody's Hangover Powder 150 mg, 1 powder packet

More caffeine

1st Phorm Project-1 Pre-Workout 200 mg, 1 serving
C4 Original Pre-Workout 200 mg, 1 scoop
Caffeine Pills (200 mg) 200 mg, 1 pill

FAQ

Is Mr. Hyde Pre-Workout high in caffeine?

Yes. One scoop of Mr. Hyde Pre-Workout (Infinite) has 190 mg, which is 2 times an 8 fl oz cup of brewed coffee (95 mg).

How much caffeine is in 2 scoops, Nightmare of Mr. Hyde Pre-Workout?

Two scoops of Mr. Hyde Pre-Workout (Nightmare) has 300 mg of caffeine.

Can I drink Mr. Hyde Pre-Workout at night?

Not if you want to sleep well. Had at 7 pm, it leaves about 115 mg in an average adult at an 11 pm bedtime, above the 50 mg most people sleep fine with. The latest time for an 11 pm bedtime is about 12:55 pm.

How long does the caffeine in Mr. Hyde Pre-Workout last?

It peaks about 70 minutes after you start it. Of the 190 mg, about 87 mg is still in you 6 hours later and 38 mg after 12 hours, for an average adult with a 5-hour half-life.

Does Mr. Hyde Pre-Workout have more caffeine than a cup of coffee?

Yes. One scoop of Mr. Hyde Pre-Workout (Infinite) has 190 mg; an 8 fl oz cup of coffee has 95 mg.

Method and limits

The caffeine figure comes from prosupps.com and the other sources listed above; recipes, brewing and batches vary, so a real serving can differ. The curves use a standard one-compartment model with an average 5-hour half-life and a sleep-friendly line of 50 mg; your own body may clear caffeine faster or slower. How it works has the details.

These are estimates for information, not medical advice.