Use case · From the verified Record
How do I keep track of how much caffeine is in my pre-workout?
THE SHORT ANSWER
Read the caffeine off the dated label of the exact product you take, and keep that label: the number can change while the name stays the same. On 93 verified pre-workout labels, caffeine runs from 100 mg (Cellucor C4 Energy + Aminos) to 450 mg (Chaos and Pain Cannibal Ferox Pre-Workout) per serving. The caffeine moved on Cellucor C4 Original, GHOST Legend, Gorilla Mind Gorilla Mode, RYSE Loaded Pre and ProSupps Mr. Hyde Xtreme.
These are label figures, not a recommendation. Whether an amount suits you is a question for a clinician.
The evidence
When the caffeine changed.
Same product name, a different caffeine line, both labels dated.
Cellucor C4 Original
Caffeine went from 150 mg to 200 mg
See the dated labelsGHOST Legend
Caffeine went from 250 mg to 300 mg
See the dated labelsGorilla Mind Gorilla Mode
Caffeine went from 175 mg to 200 mg
See the dated labelsRYSE Loaded Pre
Caffeine went from 300 mg to 270 mg
See the dated labelsProSupps Mr. Hyde Xtreme
Caffeine went from 300 mg to 400 mg
See the dated labels
Every verified label
Caffeine per serving, verified labels.
From each label's caffeine lines, read twice. A total line is used where the label prints one.
Check yours
Keep track in three steps.
Save your pre-workout to a Locker.It keeps the dated label, caffeine line included.
Count every stimulant line.Some labels list caffeine more than once, in two forms. The table adds them unless the label prints a total.
Check before you reorder.If a newer label differs, you see both, dated.
Method
How this page was made.
What FormulaSignal did
- Answered from the 515 records that are Signal Verified today: labels read twice, dated and sourced.
- Counted a change only between two dated labels of the same product, flavor, size and sales channel.
- Computed every figure on this page from those records when the page was served, so it moves when the Record does.
What it did not do
- No look inside a tub. A label says what a product declares. A record does not establish what a particular container holds.
- No taste test and no lab test. Every figure is what a label or a brand's own page declares, not what was measured in a tub.
- No score and no winner. Differences are measured and shown; nothing is rated.
- No payment and no preview. No brand paid to appear, and none saw this page before it was published.
- No health advice. Whether an ingredient or an amount suits you is a question for a clinician.
Questions
More questions
Which verified pre-workout has the most caffeine?
Chaos and Pain Cannibal Ferox Pre-Workout, at 450 mg per serving on the label dated Oct 30, 2026. More is not better; FormulaSignal gives no dosing advice.
Which has the least?
Cellucor C4 Energy + Aminos, at 100 mg per serving on the label dated Aug 18, 2026.
Keep reading
Other questions, answered from the Record.
- How do I know if my supplement changed its formula?Decision
- My supplement tastes different. Is it a new formula or a bad batch?Decision
- Is C4 Original 150 mg or 200 mg of caffeine?Decision
- How much caffeine is in GHOST Legend, old formula vs new?Decision
- Which pre-workouts changed their formula?Decision
- Did my protein powder shrink its scoop?Use case
Know before you reorder
Keep the label you take, dated.
Your Locker is free. It keeps each product's dated label, so a newer one can be put beside it.