U.S. pre-workout records

Ask what’s actually in your pre-workout.

A formula can change while the name and the reviews stay the same. We keep the dated labels, so you can check.

23 products · 38 dated product states · oldest from 2017

Try one of these

The record behind every answer

23: products covered
38: dated product states
558: declared ingredient lines
34: research and regulator citations

Every finding names its dated source. No affiliate links, no sponsored conclusions. Health questions go to a clinician.

A real answer

This is what you get back.

Not a summary of a page we read while you waited. A dated before-and-after we already held, with both sources attached and the limits of the record stated on the same screen.

QUESTION

Did C4 Original change?

CONFIRMED

Yes. Cellucor C4 Original moved to a new formula between Jan 25, 2024 and Feb 26, 2024, and both states are on file.

States captured

Caffeine per serving: 150 mg200 mg
Beta-alanine per serving: 1.6 g2 g
Servings per container: 3030
List price: $29.99$34.99
Price per serving: $1.00$1.17

EVIDENCE SOURCES

Cellucor, archived page P2, captured 2024-01-25
Cellucor, archived page P2, captured 2024-02-26

The window is based on nearest archived canonical states, not manufacture dates. Shopify metadata points to a likely February 20 DTC publication, and the legacy formula later coexisted on a hidden live page.

Run this question Ask about something else

How it works

The research happens before you ask the question.

We are not searching the web while you wait. The labels, prices, and versions are already on file, captured and dated before your question arrived. Ask something and this is the path through the record.

01
Identify the exact product and version
Flavor, size, and formula generation, because a rename is not a reformulation.
02
Retrieve the labels already on file
The current declared label plus every dated archived state we hold for it.
03
Compare the labels and calculate serving economics
Declared amounts normalized against each other, then cost per serving and per month.
04
Check published research and regulatory records
Declared doses against the doses used in the research we hold, plus any documented caution or regulatory filing on an ingredient.
05
Return the answer with sources, confidence, and limits
Every operation that ran is shown, and every one that did not is shown as skipped.

See the full 12-step process

01Resolve the exact product and formula version
02Retrieve archived labels
03Load permitted experience records Not yet enabled.
04Filter duplicates and suspicious records Not yet enabled.
05Separate current-formula experience from superseded-formula experience Not yet enabled.
06Group recurring themes Not yet enabled.
07Look for contradictory evidence
08Check scientific and safety references
09Calculate serving economics
10Apply your stated preferences
11Build confidence from evidence quality
12Generate the report

4 of these depend on permitted experience records. We hold none yet, so they do not run and no answer on this site draws on them.

If the work was already done, the interface says it is reading the FormulaSignal Brain. It does not say it is searching a platform when no request left our servers, and it never adds a fake delay or a counter that is not a real count.

The record

What sits behind those numbers.

We hold 56 source captures. Only 38 of them carry an observation date, and only those can date a change. A page saved today proves what a label says today, never what it said last year, so the other 18 stay on file as evidence and are never used to date anything.

PANELS CONFIRMED

Of 23 covered products, 14 have a printed Supplement Facts panel complete enough to compute against. The other 9 are on file with their sources, and an answer says so rather than guessing.

INGREDIENT DOSSIERS

Behind them, 34 citations from published research or a regulator, plus 15 secondary or interested-party references, each attributed to whoever published it.

$0.83 to $2.95

COST PER SERVING, OBSERVED

Median $1.50, from dated captures rather than a range we estimated.

175 to 388 mg

DECLARED CAFFEINE RANGE

Per serving across the covered set. The spread is wider than most people assume, which is the point.

OPEN SOURCE ANOMALIES

Conflicts we found and have not resolved. We publish these rather than quietly picking whichever source we prefer.

Not yet enabled

EXPERIENCE EVIDENCE

What buyers reported is not part of any answer today. All 16 source platforms are documented and every connector stays off until its licensing is cleared. Until then we hold 0 records and say so.

What you get

Every covered product is held to the same standard.

Same sections, same order, whatever the verdict turns out to be, so two reports can be read side by side. 16 sections in six parts. The first reports are in human review now, and none goes public until a named reviewer signs the evidence behind it and timestamps the release.

Answer and confidence

Executive summary
Decision summary
Confidence and why
Scored components Not yet

Formula and version history

Formula and serving history

Cost and serving economics

Cost and hidden costs

Fit against stated criteria

Where it meets your stated criteria
Where it misses your stated criteria
Label warnings and relevant cautions

What buyers reported

Common regrets Not yet
Biggest surprises Not yet
Experience timeline Not yet

Conflicts, limits, and sources

Contradictory evidence
Alternatives
Sources and quotations
Bottom line from the record

4 of the 16 are marked not yet. Three are built from what buyers reported and we hold no permitted experience records. The fourth is the scored components: six weighted measures, one of which is that same experience signal, and a total is never shown while any one of them has no data. A score missing one of its six inputs is a guess wearing a number.

Ask a question Report release status

Limits

What we will and will not do.

Most supplement sites answer everything. That is how you end up with a review count standing in for a safety finding. Here is the line, written down.

WE WILL

Tell you exactly what the current label declares
Show a change only when dated, like-for-like states verify it
Calculate cost per serving and cost per month
Compare declared amounts against doses used in published research
Group permitted user experience only after source rights are verified and licensed
Say INSUFFICIENT EVIDENCE when that is the honest answer

WE WILL NOT

Diagnose anything or give you a dosing protocol
Claim reviews prove a product is safe or effective, because they cannot
Publish a lab or content claim we have not verified
Rank on affiliate economics, disclosed or not
Accept payment for a conclusion, a score, or a placement
Show a percentage without its denominator

THE HEALTH LINE

The FDA does not have the authority to approve dietary supplements for safety and effectiveness before they are sold, and it advises talking with a health care professional before you start one. Read the FDA guidance. The FTC states that anecdotal evidence about individual consumer experience is never sufficient to substantiate a health-product effect claim. Read the FTC guidance. We hold ourselves to that standard. User reports can describe taste or purchase regret. They cannot establish whether a product is safe for you.

Private beta

Ask is open. Reports stay private until human review is complete.

Ask reads only the records we have checked and cleared to publish. Reports, saved watchlists, and formula-change alerts stay in a small private beta until each control is ready.

Ask a question Request private beta access