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Bucked Up
Mother Bucker
High stimulant content · Read safety guidance
Our analysis — editorial take, not from the label
A 400 mg-caffeine, double-dosed beta-alanine formula built for experienced stimulant users; the brand itself says it isn't newbie-friendly, and the added alpha-yohimbine raises the stimulant load further.
- Caffeine
- 400 mg
- Citrulline
- 4 g
- Beta-alanine
- 6.4 g
- Servings
- 20
Price tier: Premium · relative cost per full serving across this database
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Flavors include Gym-Junkie Juice, Miami Musclehead, Mango Mystery, Rocket Pop, Strawberry Super Sets, and Tart Candy, sucralose-sweetened.
Label verified: July 2026 · View supplement facts image
Label data
Per full serving · 20 servings per container · from the manufacturer's panel
| Caffeine | 400 mg |
|---|---|
| Beta-Alanine | 6.4 g |
| L-Citrulline | 4 g |
| Rauwolscine (Alpha-Yohimbine) | 2 mg |
| Proprietary blend | No |
Primary label source: Bucked Up - Mother Bucker product page (official) · verified July 2026
Cautions
- 400 mg caffeine per scoop is about 4 cups of coffee; label states the formula is not newbie-friendly and warns against exceeding 1 serving in 24 hours.
- 6.4 g beta-alanine will cause a tingling (paresthesia) sensation.
- Contains rauwolscine (alpha-yohimbine), a stimulant compound some people are sensitive to - avoid stacking with other stimulants.
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 400 mg at the studied amount for a 67–133 kg adult. Full health & safety notes
Product details
Where this label sits
Bucked Up Mother Bucker sits in the high 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 20 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
- Beta-Alanine · 6.4 g. Double the ~3.2 g/day dose used in most beta-alanine studies - expect a stronger tingling response.
- L-Citrulline · 4 g. Below the 6-8 g range used in most standalone citrulline studies, though paired here with 1.5 g Nitrosigine (arginine silicate) for additional pump support.
- Caffeine (300 mg immediate-release + 100 mg extended-release) · 400 mg. About 4 cups of coffee worth of caffeine, split between 300 mg caffeine anhydrous and 100 mg microencapsulated delayed-release caffeine.
- Rauwolscine (Alpha-Yohimbine) · 2 mg. A potent yohimbine-family alkaloid; 2 mg is a standard supplement-level dose and adds further to the overall stimulant load on top of the 400 mg of caffeine.
Flavors & sweetener
Flavors include Gym-Junkie Juice, Miami Musclehead, Mango Mystery, Rocket Pop, Strawberry Super Sets, and Tart Candy, sucralose-sweetened.
Who it's best for
Experienced high-stimulant users only — not a sensible first pre-workout. 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.
-
Beta-alanine6.4 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.”
-
Citrulline4 g
67% of the low end of the studied range0studied 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”
-
Caffeine400 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.”
Common questions about Bucked Up Mother Bucker
How much caffeine is in Bucked Up Mother Bucker?
400 mg per full labeled serving — roughly 4.2 small cups of coffee. Within the Scoop Sense pre-workout database (0–400 mg per serving) that places it in the high 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 Bucked Up Mother Bucker make my skin tingle?
The 6.4 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 Bucked Up Mother Bucker 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.
Do the numbers for Bucked Up Mother Bucker assume one scoop or two?
All figures on this page are per full labeled serving. 400 mg caffeine per scoop is about 4 cups of coffee; label states the formula is not newbie-friendly and warns against exceeding 1 serving in 24 hours..