TRANSPARENT LABS
Comparison · Dated labels
Transparent Labs BULK vs Cellucor C4 Original
THE SHORT ANSWER
It depends on what you want from the label.
- Lower cost per servingC4 Original
- Creatine in the scoopC4 Original
- More actives at researched dosesTransparent Labs BULK
The full answer, in words
Lower cost per serving: C4 Original. Creatine in the scoop: C4 Original. More actives at researched doses: Transparent Labs BULK. Transparent Labs BULK declares 200 mg of caffeine per serving and Cellucor C4 Original declares 200 mg, on labels observed July 25, 2026 and October 20, 2026. At the prices FormulaSignal observed, Transparent Labs BULK costs $1.67 a serving and Cellucor C4 Original $1.17. They share 1 declared active ingredient; Transparent Labs BULK lists 8 the other does not, and Cellucor C4 Original lists 5.
Every figure here is read from the FormulaSignal Record, from each brand's own product page, with the date it was observed. No winner is declared and no product is scored.
At a glance
Two labels, five facts.
- Caffeine per serving
- Transparent Labs BULK: 200 mg
- Cellucor C4 Original: 200 mg
- Price per servingLower costs less
- Transparent Labs BULK: $1.67
- Cellucor C4 Original: $1.17
- Main actives at researched doses
- Transparent Labs BULK: 4 of 4
- Cellucor C4 Original: 1 of 5
- Servings per container
- Transparent Labs BULK: 30
- Cellucor C4 Original: 30
- Confirmed formula changes
- Transparent Labs BULK: 1
- Cellucor C4 Original: 1
Which fits you
Choose by what you care about.
Each line is a measured difference between the two labels, not a verdict. Nothing here says either product works, or is safe for you.
Cost per serving matters most: Cellucor C4 Original
$1.17 against $1.67 a serving at the prices FormulaSignal observed (Oct 27, 2026 and Oct 4, 2026). Not every price here is established as a list price.
You want creatine in the same scoop: Cellucor C4 Original
Cellucor C4 Original declares Creatine Nitrate (as NO3-T) at 1 g; Transparent Labs BULK's complete label declares no creatine.
You want more of the main actives at researched doses: Transparent Labs BULK
4 of 4 main actives on Transparent Labs BULK sit inside the dose range the cited research used, against 1 of 5 on Cellucor C4 Original. A comparison of numbers, not of how well either works.
Side by side
Transparent Labs BULK and C4 Original, line by line.
The same fields the FormulaSignal API and MCP server return for this pair.
| Field | Transparent Labs BULK | C4 Original |
|---|---|---|
| Caffeine per serving The Record's total across every declared caffeine source. Neither direction is better. | 200 mg | 200 mg |
| Price per serving Observed package price divided by the stated serving count. The basis of each price is on the product's Record. | $1.67 | $1.17 |
| Monthly cost at five uses a week | $36.18 | $25.35 |
| Servings per container | 30 | 30 |
| Ingredients with a disclosed amount A proprietary blend total counts as one amount, and the split inside it stays undisclosed. | 17 of 17 | 11 of 11 |
| Main actives inside researched doses Declared amounts measured against the range the cited research used. Not a measure of effectiveness. | 4 of 4 | 1 of 5 |
| Documented cautions | Alpha-GPC | None on file |
| Regulatory records A filing exists. It is not a finding about safety. | None on file | Huperzia serrata extract |
| Confirmed formula changes Zero means none confirmed, not that the formula never changed. | 1 | 1 |
| Label observed | July 25, 2026 | October 20, 2026 |
Ingredient by ingredient
What both declare, and what only one does.
Matched by FormulaSignal's normalized identity, so two brand names for the same compound line up and two forms of one ingredient do not. Vitamins, minerals and electrolytes are left out; caffeine is compared as a total above.
| Declared by both | Transparent Labs BULK | C4 Original |
|---|---|---|
| Beta-alanine | 4000 mg | 2 g |
Only on Transparent Labs BULK
- Citrulline malate: 8000 mg
- Betaine anhydrous: 2500 mg
- Taurine: 1300 mg
- L-tyrosine: 1000 mg
- Alpha-GPC: 300 mg
- L-theanine: 200 mg
- Theobromine: 50 mg
- Senactiv: 50 mg
Only on Cellucor C4 Original
- L-citrulline: 1.2 g
- L-arginine: 1.2 g
- PeptiPump: 100 mg
- Creatine nitrate: 1 g
- Huperzia serrata extract: 5 mg
Which label?
Which label is a number from?
A figure without a date may describe a label that is no longer sold.
Confirmed change · Transparent Labs BULKCitrulline malate6 g8 gSee the change and both sources
A comparison written from the earlier label is describing a different formula.
Confirmed change · Cellucor C4 OriginalCaffeine150 mg200 mgSee the change and both sources
A comparison that quotes 150 mg of caffeine for Cellucor C4 Original is describing an earlier label.
Method
How this page was made.
What FormulaSignal did
- Read Transparent Labs BULK's label as Transparent Labs published it, observed July 25, 2026.
- Read Cellucor C4 Original's label as Cellucor published it, observed October 20, 2026.
- Matched 14 declared active ingredients by normalized identity, so two brand names for one compound line up.
- Checked each main active's declared dose against the range the cited research used: 4 of 4 on Transparent Labs BULK; 1 of 5 on Cellucor C4 Original.
- Looked for confirmed formula changes on either product: 2 on file, each reviewed against two dated sources.
What it did not do
- 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.
Evidence
Open the sources behind every figure.
Each product's Record lists every capture, with both its observation and access dates.
Transparent Labs BULK: label
Transparent Labs · P1 · observed July 25, 2026
Open the sourceTransparent Labs BULK: price
Transparent Labs · the price shown · observed October 4, 2026
Open the sourceCellucor C4 Original: label
Cellucor · P1 · observed October 20, 2026
Open the sourceCellucor C4 Original: price
Cellucor · the price shown · observed October 27, 2026
Open the source
Where to buy
Decided? Check the label on what you buy.
CELLUCOR
Cellucor C4 Original
As an Amazon Associate FormulaSignal earns from qualifying purchases. The link goes to the Amazon listing for this product. It is not a recommendation, and it cannot change anything the Record says or how anything is ordered. Choose the flavor and size on the seller’s page; this link does not establish the price or package shown in the Record. A listing can show an older label, so compare its label photo before you buy.
Questions
Transparent Labs BULK vs C4 Original: common questions
Which is better, Transparent Labs BULK or C4 Original?
It depends on what you want from the label. Lower cost per serving: C4 Original. Creatine in the scoop: C4 Original. More actives at researched doses: Transparent Labs BULK. FormulaSignal names no winner: each line is a measured difference between the two dated labels, and what suits you is yours to weigh, with a clinician for anything about your health.
Which has more caffeine, Transparent Labs BULK or C4 Original?
Neither. Both labels declare 200 mg of caffeine per serving (observed July 25, 2026 and October 20, 2026).
Is Transparent Labs BULK stronger than C4 Original?
If “stronger” means caffeine, Transparent Labs BULK declares more (200 mg against 200 mg). FormulaSignal does not rate how strong a product feels; that is an experience question the labels cannot answer.
Which is cheaper per serving?
Cellucor C4 Original, at $1.17 a serving at the price shown on Oct 27, 2026, against Transparent Labs BULK at $1.67 a serving at the price shown on Oct 4, 2026.
Do Transparent Labs BULK and C4 Original contain creatine?
Transparent Labs BULK: none declared on its complete label. Cellucor C4 Original: Creatine Nitrate (as NO3-T) (1 g).
Do they contain beta-alanine?
Transparent Labs BULK: Beta-Alanine (4000 mg). Cellucor C4 Original: CarnoSyn Beta-Alanine (2 g).
Has either formula changed?
Transparent Labs BULK's label changed between the states FormulaSignal observed on August 19, 2022 and March 16, 2025: Vitamin D3 75 mcg to not declared; BCAA 2:1:1 4 g to not declared; Astragin 25 mg to not declared; Senactiv not declared to 50 mg. A comparison written from the earlier label is describing a different formula. Cellucor C4 Original's label changed between the states FormulaSignal observed on January 25, 2024 and February 26, 2024: Caffeine 150 mg to 200 mg; Beta-alanine 1.6 g to 2 g. A comparison that quotes 150 mg of caffeine for Cellucor C4 Original is describing an earlier label.
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Lists that include both
- The cheapest pre-workouts per servingTransparent Labs BULK #112, C4 Original #47
- Pre-workouts without a proprietary blendTransparent Labs BULK #11, C4 Original #121
- Clinically dosed pre-workouts, checked against the researchTransparent Labs BULK #11, C4 Original #126
Every comparison · Pre-workout lists · What the Record covers
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