Comparison · Dated labels

Transparent Labs BULK vs Transparent Labs Stim-Free Pre-Workout

THE SHORT ANSWER

Transparent Labs BULK declares 200 mg of caffeine per serving and Transparent Labs Stim-Free Pre-Workout declares no caffeine or other stimulant on its complete label, on labels observed July 25, 2026 and August 3, 2026. At the prices FormulaSignal observed, Transparent Labs BULK costs $1.67 a serving and Transparent Labs Stim-Free Pre-Workout $1.67. They share 5 declared active ingredients; Transparent Labs BULK lists 4 the other does not, and Transparent Labs Stim-Free Pre-Workout lists 4.

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.

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At a glance

Two labels, the same five facts.

TRANSPARENT LABS

Transparent Labs BULK

Caffeine per serving: 200 mg
Price per serving: $1.67
Main actives at researched doses: 4 of 4
Label observed: July 25, 2026
Confirmed formula changes: 0

Full Record and history · Alternatives

TRANSPARENT LABS

Transparent Labs Stim-Free Pre-Workout

Caffeine per serving: None declared
Price per serving: $1.67
Main actives at researched doses: 3 of 3
Label observed: August 3, 2026
Confirmed formula changes: 0

Full Record and history

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.

You want a pre-workout without stimulants: Transparent Labs Stim-Free Pre-Workout
Its complete label declares no caffeine or other stimulant; Transparent Labs BULK declares 200 mg of caffeine per serving.

Side by side

Transparent Labs BULK and Transparent Labs Stim-Free, line by line.

The same fields the FormulaSignal API and MCP server return for this pair.

Transparent Labs BULK compared with Transparent Labs Stim-Free Pre-Workout on declared and observed values.
Field	Transparent Labs BULK	Transparent Labs Stim-Free
Caffeine per serving The Record's total across every declared caffeine source. Neither direction is better.	200 mg	None declared
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	$1.67
Monthly cost at five uses a week	$36.18	$36.18
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	3 of 3
Documented cautions	Alpha-GPC	None on file
Regulatory records A filing exists. It is not a finding about safety.	None on file	None on file
Confirmed formula changes Zero means none confirmed, not that the formula never changed.	0	0
Label observed	July 25, 2026	August 3, 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.

Active ingredients declared by both products, with each declared amount.
Declared by both	Transparent Labs BULK	Transparent Labs Stim-Free
Citrulline malate	8000 mg	8000 mg
Beta-alanine	4000 mg	4000 mg
Betaine anhydrous	2500 mg	2500 mg
Taurine	1300 mg	1300 mg
L-tyrosine	1000 mg	1000 mg

Only on Transparent Labs BULK

Alpha-GPC: 300 mg
L-theanine: 200 mg
Theobromine: 50 mg
Senactiv: 50 mg

Only on Transparent Labs Stim-Free Pre-Workout

elevATP (Ancient Peat; Apple Extract) (Malus spp.) (fruit): 150 mg
Senactiv Tienchi Ginseng (Panax notoginseng) (Root) Extract & Chestnut Rose (Rosa roxburghii) (Fruit) Extract: 50 mg
Bioperine Black Pepper (Piper nigrum) (Fruit) Extract (95% Piperine): 5 mg
Huperzine A (Huperzia serrata) (Leaf): 100 mcg

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 source evidence
Transparent Labs BULK: price
Transparent Labs · observed price, basis not established · observed August 3, 2026
Open source evidence
Transparent Labs Stim-Free Pre-Workout: label
Transparent Labs · P1 · observed August 3, 2026
Open source evidence
Transparent Labs Stim-Free Pre-Workout: price
Transparent Labs · observed price, basis not established · observed August 3, 2026
Open source evidence

Questions

Transparent Labs BULK vs Transparent Labs Stim-Free: common questions

Which is cheaper per serving?

They cost the same per serving at the prices FormulaSignal observed: $1.67.

Do Transparent Labs BULK and Transparent Labs Stim-Free contain creatine?

Transparent Labs BULK: none declared on its complete label. Transparent Labs Stim-Free Pre-Workout: none declared on its complete label.

Do they contain beta-alanine?

Transparent Labs BULK: Beta-Alanine (4000 mg). Transparent Labs Stim-Free Pre-Workout: Beta-Alanine (4000 mg).

Has either formula changed?

FormulaSignal holds no confirmed change for either product. That is a statement about the Record, not a finding that neither formula ever changed.

Keep comparing

Lists that include both

Every comparison · Pre-workout lists · What the Record covers

Considering both?

Keep them in your Locker, free.

Save either one as Considering. Your Locker keeps the dated label reference, and optional monitoring tells you if a formula you rely on changes before you reorder.

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