Same name, new formula.
A reformulation keeps the product name, and the old label is gone from the page the day it changes.
For supplement brands · U.S. pre-workout
Know when a competitor changes their formula.
Confirmed changes in formula, price per serving, claims and certifications across the U.S. pre-workout category, emailed to your team with the dated source attached.
FormulaSignal record
Confirmed change
C4 OriginalOne living record
January 2024
Caffeine 150 mgBeta-alanine 1.6 gFebruary 2024
Caffeine 200 mgBeta-alanine 2 gDated statesSource-linkedReview recorded
The Record behind every alert
- 446
- products
- 259
- query-ready records
- 64
- brands
- 1,280
- dated states
- 3,803
- ingredient lines
Coverage depth varies by product. See exactly what is ready. Explore the Record
The problem
Competitors change their labels. Nobody tells you.
Fewer servings, same price.
The shelf price holds while the cost per serving moves. You only see it on a per-serving basis.
You hear about it late.
From a distributor, a review or your own sales data, months after the change shipped.
What you get
Six kinds of change, one inbox.
Each alert carries the before, the after, both dates and both sources.
- FORMULA
Formula changes
Declared ingredients and the amount of each per serving.
- SERVING ECONOMICS
Price per serving
Price, serving count and cost per serving, on one basis.
- CLAIMS
Claims
Benefit language and positioning on the product page.
- CERTIFICATIONS
Certifications
Third-party marks a dated state declares.
- LAUNCH
Launches
New products and renames entering the covered set.
- RETIREMENT
Retirements
A listing pulled, with its dated states kept.
- Email alertswhen a change is confirmed
- Monthly Category Ledgerthe covered set, one edition a month
- On-demand questionsanswered with sources and limits
Confirmed Signals, 7 so far
- FORMULAKaged Whey Protein Isolate2022–2026
- FORMULAGorilla Mind Gorilla Mode2023–2025
- FORMULA1st Phorm Megawatt2022–2025
- FORMULATransparent Labs BULK2022–2025
- FORMULABeyond Raw LIT V2 Pre-Workout2025–2026
- FORMULAGHOST Legend2019–2026
- FORMULACellucor C4 OriginalJan–Feb 2024
A change is published only once dated evidence exists on both sides. Read the Signal archive
Proof
One change, fully documented.
You saw this one at the top of the page. Here is everything the Record keeps around it.
PRODUCT
Cellucor / C4 Original
Both dated states, value by value
- Caffeine (per serving)
- 150 mg200 mg
- Beta-alanine (per serving)
- 1.6 g2 g
- Servings per container
- 3030
- Observed price (basis not recorded)
- $29.99$34.99
- Price per serving (basis not recorded)
- $1.00$1.17
The read
OBSERVED FACT
Two archived first-party pages, five weeks apart, show a move to a fifth-generation formula with the serving count held at 30.
COMMERCIAL CONTEXT
Caffeine increased 33.3% and beta-alanine increased 25%. The observed page price moved from $29.99 to $34.99 and price per serving from $1.00 to $1.17, but neither endpoint records a price basis, so this is a movement between two observed prices and not a measured list-price increase.
POSSIBLE IMPLICATION
A competitive comparison still carrying C4 Original at 150 mg and $29.99 is benchmarking against a state that stopped being current in February 2024.
CONFIRMEDArchived first-party pages · Jan 25, 2024 and Feb 26, 2024 · Reviewed by FormulaSignal, Jul 29, 2026
The window is based on nearest archived canonical states, not manufacture dates.
Method note
Shopify metadata points to a likely February 20 DTC publication, and the legacy formula later coexisted on a hidden live page. Flavor is not resolved on either endpoint. Both are canonical DTC page states whose declared actives are presented product-wide rather than per flavor, so the comparison is like for like on actives and says nothing about flavor-specific excipients. Both offer observations carry price_basis UNKNOWN: an archived page shows the price displayed that day, and nothing on file establishes whether either figure was a list price or a promotion, so no percentage price change is published from them.
How it works
From a changed page to a confirmed alert.
- 01
Capture
First-party labels and product pages, preserved and hashed on a schedule.
- 02
Compare
Against the last verified state, so a rename never reads as a reformulation.
- 03
Confirm
A changed page is a lead. A change needs two comparable dated states and a review.
- 04
Deliver
By email, with before, after, dates and sources, and kept in the permanent Record.
No software to adopt. After checkout you get a private access link, a five-minute setup, then alerts and monthly ledgers by email.
Why not just ask ChatGPT?
The market has no memory. We keep one.
Ask ChatGPT
What changed in C4 Original?
Current-page summary
The answer depends on what the model can retrieve when you ask.
No preserved prior state is guaranteed.
Ask the FormulaSignal Record
What changed in C4 Original?
Dated comparison
January 2024 to February 2024
Caffeine150 mg200 mg
Beta-alanine1.6 g2 g
Source-linkedReview recorded
Independent
No paid placement. A brand that pays gets no better treatment and no earlier notice, including you.
Source-linked
Every finding links to the archived first-party pages it rests on. Forward it with confidence.
Reviewed before release
Every confirmed change is reviewed against the preserved evidence before release.
Honest about limits
A value a source did not disclose is never shown as zero, and a failed check is never shown as unchanged.
Pricing
One plan. Five seats.
If you track competitors in spreadsheets, bookmarks and a Slack channel, this replaces that.
PAID PILOT
Pre-Workout Intelligence Pilot
$149/month
- Verified material-change alerts
- Monthly Pre-Workout Category Ledger
- Formula and declared-dose history
- Serving economics
- Launch and retirement tracking
- Claims and certification changes
- On-demand questions
- Source-linked evidence
- Internal company use
Secure checkout by Stripe · $149 billed monthly · Cancel anytime
Want to see a delivered edition first? Read the sample ledger, free.
FAQ
Straight answers.
Why 446 products and 7 confirmed changes?
A declared amount counts only once it is checked against the printed panel, and a change only once dated evidence exists on both sides. Pilot members nominate priority competitors.
Does FormulaSignal test supplements?
No. It reports declared label and public product information. It does not lab-test contents.
How is AI used?
For extraction, normalization and drafting. Calculations are deterministic, and every material fact links to captured evidence.
How often does it arrive?
An alert when a change is confirmed, and the Category Ledger monthly. Quiet weeks stay quiet.
What if a source is wrong?
Confirmation status is shown, dated evidence is kept, and material corrections stay visible.
Can I cancel?
Yes, any time before the next billing date. It is billed monthly through Stripe.
Disclosures
Method, limits and terms.
Methodology
FormulaSignal observes publicly accessible first-party labels and product pages, normalizes declared product information, compares each state with the latest verified state, and reviews material changes against the preserved evidence before publication.
Limitations
FormulaSignal reports publicly declared information. It does not independently test products. Public sources may be incomplete, delayed, inconsistent, or changed without notice. An observation date is not necessarily the date a product was manufactured or internally changed.
Privacy
FormulaSignal collects only business contact information voluntarily provided by prospective or paying customers. It does not collect consumer health information. Payments are processed by Stripe; FormulaSignal does not receive full payment-card details. The current privacy notice and terms are at /privacy and /terms.
Terms
FormulaSignal provides commercial market intelligence. It does not provide medical, nutritional, legal, regulatory, or formulation advice. References to brands and products do not imply affiliation or endorsement. The paid pilot is $149 per month, billed monthly through Stripe, and may be canceled at any time before the next billing date by contacting FormulaSignal.
Corrections
To report a possible error, email hello@formulasignal.com. Material corrections will be investigated and displayed transparently.
Five pilot seats