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Transparent Labs
BULK
Our analysis — editorial take, not from the label
Citrulline, beta-alanine, and betaine all at studied doses with a fully disclosed label; caffeine stays moderate at 200 mg.
- Caffeine
- 200 mg
- Citrulline
- 8 gmalate
- Beta-alanine
- 4 g
- Servings
- 30
Price tier: Premium · relative cost per full serving across this database
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Fruit-forward flavors; stevia-sweetened with no artificial dyes.
Label verified: July 2026
Label data
Per full serving · 30 servings per container · from the manufacturer's panel
| Caffeine | 200 mg |
|---|---|
| Citrulline Malate | 8 g |
| Beta-Alanine | 4 g |
| Betaine Anhydrous | 2.5 g |
| Proprietary blend | No |
Cautions
- Beta-alanine tingles likely at 4 g
- 200 mg caffeine is still about two cups of coffee — time it away from bedtime
Formulated for healthy adults — not intended for anyone under 18. Performance studies use roughly 3–6 mg of caffeine per kg of body weight, which puts 200 mg at the studied amount for a 33–67 kg adult. Full health & safety notes
Product details
Where this label sits
Transparent Labs BULK sits in the moderate stim tier of the Scoop Sense pre-workout database, which spans 0–400 mg of caffeine per serving. Every active ingredient on the panel is listed with its own dose — nothing is hidden inside a blend total. It runs 30 servings per container at the full labeled serving. Everything on this page comes from the manufacturer's supplement facts panel as of July 2026 — never from the marketing page.
Key ingredients & studied doses
- Citrulline Malate · 8 g. Within the 6–8 g range used in most citrulline studies.
- Beta-Alanine · 4 g. At the higher end of studied daily amounts — tingles very likely.
- Betaine Anhydrous · 2.5 g. Matches the 2.5 g amount used in most betaine studies.
Flavors & sweetener
Fruit-forward flavors; stevia-sweetened with no artificial dyes.
Who it's best for
Most regular gym-goers — the caffeine dose is in the range of about two cups of coffee. Derived from the label figures above — not medical advice.
How we log this label
Every entry is built the same way: we read the current supplement facts panel, log each disclosed dose, compare it against the amounts used in published research, flag proprietary blends, and state the cautions plainly. The full methodology explains each step.
This label against the research
How we evaluate labelsEach bar shows the amount commonly used in published human research, and where this label's dose falls against it. Research amounts are context, not a recommendation — they are not doses, and nothing here is medical advice.
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Citrulline8 g
At or above the studied amount0studied range 6 g–8 g10 g
Studies use about 6 g of pure L-citrulline, or 8 g of citrulline malate — which is about 5.3 g of citrulline at the usual 2:1 ratio, and closer to 4 g if the label is 1:1.
Source: Gough et al., European Journal of Applied Physiology 2021 — “The most commonly employed dose of CM is a single acute 8 g dose”
-
Beta-alanine4 g
At or above the studied amount0studied range 3.2 g–6.4 g7 g
Studied as a daily loading protocol of 3.2–6.4 g taken for four weeks or longer. A single serving below that range still counts toward the daily total, but one scoop is not a studied dose on its own.
Source: Rezende et al., Frontiers in Physiology 2020 — “It seems that substantial amounts of BA are required to increase MCarn, with most studies using doses of ~3.2–6.4 g·day−1, for periods ranging from 4 to 24 weeks.”
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Betaine2.5 g
At or above the studied amount0studied range 2.5 g3.5 g
Trials run from 1.25 g to 5 g a day; 2.5 g, usually split into two doses, is the amount most of them use.
Source: Lee et al., Journal of the International Society of Sports Nutrition 2010 — “Betaine supplement (B) was given as 1.25 grams (g) of betaine (Danisco Inc., Ardsley, NY) in 300 mL of Gatorade© sports drink, taken twice daily”
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Caffeine200 mg
At or above the studied amount0studied range 200 mg–400 mg450 mg
Performance studies most often use 3–6 mg per kg of body weight, which works out to roughly 200–400 mg for most adults. The FDA cites 400 mg a day as an amount not generally associated with negative effects in healthy adults.
Source: Guest et al., Journal of the International Society of Sports Nutrition 2021 — “Caffeine has consistently been shown to improve exercise performance when consumed in doses of 3–6 mg/kg body mass.”
What other people say
Why we don't rate productsTwo different things, side by side: the rating the seller publishes on its own store, and what independent users write in public threads. Scoop Sense writes neither and collects no reviews of its own. Neither is evidence that a product works — they describe what people experienced and expected, not what the research shows.
On the seller's page
4.7 / 5
4,986 ratings
The brand's own storefront, read July 2026. A seller's rating is collected and moderated by the seller — treat it as a marketing figure, not an independent one.
What people actually report
Transparent Labs Bulk is consistently seen as offering strong value and a clean, transparent label compared to rival stimulant pre-workouts.
- positive Transparent, well-dosed label. Users repeatedly point to Bulk's fully disclosed label as a standout compared to proprietary-blend competitors.
- positive Strong value. More servings per container at a lower price than premium rivals makes it a frequent value pick.
- mixed Lower caffeine than some rivals. A few users note its caffeine dose is lower than higher-stim competitors, which some read as gentler and others as less intense.
Read the threads yourself
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“Transparent Labs Bulk has 200mg caffeine and a much MUCH better label.”
r/Preworkoutsupplements thread, 2023 -
“I've had Elite but never Bulk, that being said I'd go with Bulk. More servings for a lower price. Bulk still has a nice label and lower caffeine amount.”
r/Preworkoutsupplements thread, 2024 -
“Bulk Black is a better value. If I had to pay, I'd buy Black vs Elite.”
r/Preworkoutsupplements thread, 2024
Common questions about Transparent Labs BULK
How much caffeine is in Transparent Labs BULK?
200 mg per full labeled serving — roughly 2.1 small cups of coffee. Within the Scoop Sense pre-workout database (0–400 mg per serving) that places it in the moderate stim tier. The FDA cites about 400 mg per day as an amount generally not associated with negative effects in healthy adults, and coffee, tea, and energy drinks count toward the same total.
Why does Transparent Labs BULK make my skin tingle?
The 4 g of beta-alanine. The prickling (paresthesia) in the face, neck, and hands is generally considered harmless, is dose-dependent, and fades on its own — typically within about an hour. Most beta-alanine studies use 3.2 g per day.
Does Transparent Labs BULK disclose every dose?
Yes — the label lists an individual amount for each ingredient, with no proprietary blends. That is what the "label fully disclosed" tag on Scoop Sense means, and it is what lets each dose be compared against the amounts used in published research.