Black Market Labs · Pre-workout
Black Market Labs Underground High Stimulant Pre-workout
Label read twice, dated Oct 2026 · checked weeklyLast valid check Nov 6, 2026
Save to my LockerLabels
The labels, dated
One documented label. Read twice, dated, kept.
Dates are when we observed each label, not when it was made or shipped.
Current label read Oct 30, 2026
- High Stimulant & Focus3220 mg
- L-Taurine1000 mg
- Dendrobium nobile 10:1600 mg
- Caffeine350 mg
- Alpha GPC 50%300 mg
- N-Acetyl-L-Tyrosine250 mg
- Choline Bitartrate200 mg
- Eria jarensis150 mg
No earlier label has been recovered yet. A missing observation is not proof nothing changed. The full panel is below.
What it means
The label you can check against.
What we found
The panel the brand published on Oct 30, 2026 was read twice, independently, and every compared field agreed. It declares 19 dosed lines. No confirmed formula change is on file for this product.
What we can’t tell you yet
A missing earlier label is not proof nothing changed, and a product record never establishes what is inside a particular tub. Dates are observation dates, not manufacture dates.
Signal Verified, here
What we checked. What we haven’t yet.
- Checked: Label read twice75 of 75 fields agreed on the panel from blackmarketlabs.com, dated Oct 30, 2026.
- Not yet: FlavorsRead: one product-wide panel. 3 of 3 flavors on the store are not read yet.
- Not yet: Where it's soldBrand's own store only. Retail labels have not been compared.
- Not yet: Earlier labels1 dated label on file. The archive search is not complete, so an earlier label may exist.
- Checked: MarketUS market only.
- Checked: Kept currentRechecked within 180 days. If it is not re-verified by Apr 28, 2027, the status comes off.
Label read twice. Both readings agree. Not a laboratory test, safety certification, or endorsement of the product. How Signal Verified works
Monitoring
How we keep it current
Checked weekly
Last checked Nov 6, 2026.
- No change detected in this reading
- No change detected in this reading
These are the Record’s own checks, not checks run for your account before you watched it.
FRESH CHECK
Buying again soon? Send this product to the front of the line and we’ll check the brand’s page again.
What a fresh check covers
Requests bring a source check forward. They do not scan your tub, guarantee a result, or start a subscription. Requests for the same product share a monitoring pass. Allowances reset monthly in UTC; guest allowances are shared by people on the same connection.
Formula
What's in it
The declared formula
Current formula observed October 30, 2026.
- Scoop size
- 17.04 g
- Servings
- 25
- Caffeine
- Not computable
- Formula scope
- product wide
| Label wording | Share of the heaviest line | Amount |
|---|---|---|
| Sodium | 310 mg | |
| High Stimulant & Focushigh stimulant focus | 3220 mg | |
| L-Taurine | 1000 mg | |
| Dendrobium nobile 10:1 (stem) Extractdendrobium nobile 10 1 stem extract | 600 mg | |
| Caffeine Anhydrouscaffeine | 350 mg | |
| Alpha GPC 50%alpha-gpc 50% material | 300 mg | |
| N-Acetyl-L-Tyrosine | 250 mg | |
| Choline Bitartrate | 200 mg | |
| Eria jarensis (N-Phenethyl-Dimethylamine Citrate)(whole bark) Extracteria jarensis n-phenethyl-dimethylamine citrate whole bark extract | 150 mg | |
| Juniperus communis 4:1 (berry)juniperus communis 4 1 berry | 150 mg | |
| Theobromine | 150 mg | |
| Mucuna Pruriens Velvet Bean (Seed) Extactmucuna pruriens velvet bean seed extact | 70 mg | |
| Pump & Performancepump performance | 11000 mg | |
| Citrulline-Malate | 7000 mg | |
| Beta-Alanine | 3200 mg | |
| Sodium Bicarbonate | 500 mg | |
| Pink Himalayan Salthimalayan rock salt | 300 mg | |
| Amplifier & Absorptionamplifier absorption | 175 mg | |
| L-Theanine | 150 mg | |
| Astragin® [(Astragalus membranaceus) (root) Extract, (Panax notoginseng) (root) Extract (std. to min. 1.5% Saponins)]astragin astragalus membranaceus root extract panax notoginseng root extract std. to min. 1.5% saponins | 25 mg |
Bars compare declared weight per serving, line by line.
What it costs
Serving economics
What it costs
- $54.99Price shownObserved October 30, 2026
- 25Servings per containerCaptured with the price
- $2.20Per serving$54.99 ÷ 25 = $2.20 per serving
The price is a captured fact. The per-serving figures are FormulaSignal's arithmetic on it. Price never decides whether a label is Signal Verified.
Where to buy
Buy it, knowing which label you are getting.
Compare the label on the listing or the tub with the dated one above.
FormulaSignal earns nothing from these links. A seller's stock can carry an older label than the one dated here.
Sources
Evidence
More sources on the Record
P1 commercial capture
October 30, 2026
Open source evidence (opens in a new tab)
Evidence
Sources you can open. Each one dated.
Brand's own pageOct 30, 2026
The label shown here, read twice: 75 of 75 fields agreed
Black Market Labs · blackmarketlabs.com (opens in a new tab)
Research context
Research-dose context
This label beside selected research
Selected evidence, not a universal effective dose. It does not establish safety, effectiveness, or a dose recommendation for this product.
Choline bitartrate
A1- This label
- Choline Bitartrate: 200 mg
- Studied range
- 425 to 550 mg
Study details and limits
- Protocol and duration
- Adequate Intake for adults, a nutrient reference and not an ergogenic dose
- Studied context
- NIH ODS's Choline Health Professional fact sheet establishes choline's core physiological roles: synthesis of phosphatidylcholine and sphingomyelin for cell-membrane structure, acetylcholine (a neurotransmitter for memory, mood, and muscle control) production, methyl-group donation, gene-expression modulation, and brain development. Choline bitartrate is named as one of three supplement forms (with phosphatidylcholine and lecithin).
- Limitations
- NIH ODS states explicitly: "No studies have compared the relative bioavailability of choline from these different forms". Meaning choline bitartrate's absorption/efficacy relative to phosphatidylcholine, lecithin, or non-bitartrate forms (like alpha-GPC) is not established by NIH's own review.
Selected evidence: NIH ODS, Choline fact sheet · Open source
Theobromine
A1- This label
- Theobromine: 150 mg
- Studied range
- No dose range selected
Study details and limits
- Protocol and duration
- Not recorded in the selected comparison
- Studied context
- EFSA's Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF), in its 2017 opinion on xanthine alkaloids from the flavoring priority list, treats theobromine as a major metabolite of caffeine. Roughly 11% of an ingested caffeine dose converts systemically to theobromine. And states that because "only limited toxicity data in humans are available" for theobromine directly, its safety assessment leans on the extensive caffeine safety literature (EFSA's 2015 caffeine opinion) rather than an independent human-efficacy dataset for theobromine as a standalone ergogenic ingredient.
- Limitations
- No sports-performance-specific position stand or ISSN evaluation of theobromine as a standalone ergogenic ingredient was located in this research pass. EFSA's own framing acknowledges limited independent human toxicity data on theobromine itself.
Selected evidence: EFSA Flavouring Group Evaluation 49 Revision 1, 2017 · Open source
Beta-alanine
A2- This label
- Beta-Alanine: 3200 mg
- Studied range
- 4,000 to 6,000 mg
Study details and limits
- Protocol and duration
- per day in divided doses, for at least 2 to 4 weeks, not as a single pre-workout dose
- Studied context
- Studied for high-intensity exercise capacity in the 60-240 second range via elevation of muscle carnosine, which acts as an intracellular pH buffer against acidosis. ISSN 2015 position stand: greatest performance benefits in "open end-point" tasks/time trials lasting 1-4 minutes; some benefit noted in aerobic exercise up to roughly 25 minutes; attenuation of neuromuscular fatigue, particularly noted in older adults.
- Limitations
- Strength/resistance-training outcomes remain mixed; training volume may increase without a clear strength gain. Tasks under 60 seconds do not show benefit. Endurance benefit beyond about 25 minutes is not established. Long-term safety data beyond roughly a year, and effects in special/tactical populations, are flagged as needing more research.
Selected evidence: ISSN position stand on beta-alanine, 2015 · Open source
L-theanine
A2- This label
- L-Theanine: 150 mg
- Studied range
- 12 to 400 mg
Study details and limits
- Protocol and duration
- per day across trials, with most using 200 mg
- Studied context
- Studied for attention/reaction-time measures and for stress-related relaxation without sedation. A meta-analysis/systematic review of 31 randomized controlled trials (n=1,168) found a single 200 mg dose taken 30-60 minutes before testing significantly improved choice reaction time (SMD = 0.51, 95% CI 0.25-0.77); a subset of 5 RCTs in 148 healthy adults found a dose-dependent effect on rapid visual information processing and recognition visual reaction time.
- Limitations
- The review describing itself as "promising, but not completely conclusive" signals the overall evidence base has not reached firm consensus strength despite the positive reaction-time finding.
Selected evidence: Systematic review and meta-analysis of L-theanine on cognitive performance · Open source
Cautions and filings
Cautions and regulatory records
Cautions and filings
These attach to declared ingredients, not to this product as a whole. A filing and a documented risk are not the same thing. Talk with a qualified health professional.
Documented cautions on declared ingredients
SAFETY ADVISORY · A2
Alpha-GPC 50% material. This material is standardized to Alpha-GPC. A 2021 JAMA Network Open study of about 12 million adults reported an association between alpha-GPC use and 10-year stroke risk, in a dose and duration response pattern. The authors flag confounding, and association is not causation.
Association of L-alpha Glycerylphosphorylcholine With Subsequent Stroke Risk After 10 Years, JAMA Network Open · Open source
The rest of the Record
Also checked
Formula history
No confirmed change on file. Historical evidence is not yet enough to compare, which does not establish that the product never changed.
Source conflicts
No source conflict is recorded on this Record. That is not a claim that every source agrees, only that none we read disagreed.
Common questions
Questions
Black Market Labs UNDERGROUND High Stimulant Pre-workout: common questions
How much caffeine is in Black Market Labs UNDERGROUND High Stimulant Pre-workout?
The label observed October 30, 2026 declares caffeine from 1 declared source (Caffeine Anhydrous 350 mg), with no total published by FormulaSignal.
What are the ingredients in Black Market Labs UNDERGROUND High Stimulant Pre-workout?
The label observed October 30, 2026 declares 20 lines. The actives: High Stimulant & Focus (3220 mg), L-Taurine (1000 mg), Dendrobium nobile 10:1 (stem) Extract (600 mg), Alpha-GPC 50% material (300 mg), N-Acetyl-L-Tyrosine (250 mg), Choline bitartrate (200 mg), Eria jarensis (N-Phenethyl-Dimethylamine Citrate)(whole bark) Extract (150 mg), Juniperus communis 4:1 (berry) (150 mg), and 9 more listed in full above. Vitamins, minerals and electrolytes are in the full table.
How much does Black Market Labs UNDERGROUND High Stimulant Pre-workout cost per serving?
$2.20: $54.99 for 25 servings, observed October 30, 2026 (the price shown). About $47.66 a month at five uses a week.
Has Black Market Labs UNDERGROUND High Stimulant Pre-workout changed its formula?
FormulaSignal has not confirmed a change. That is a statement about the evidence on file, not a finding that the formula never changed.
Is Black Market Labs UNDERGROUND High Stimulant Pre-workout good?
FormulaSignal does not score products or say whether one works. What the label shows: 0 of 1 main actives are declared inside the dose range the cited research used; 20 of 20 ingredient lines disclose an amount; and at $2.20 a serving it ranks 503 of 627 covered products with an observed price, cheapest first. Whether it suits you depends on your caffeine tolerance, your budget and what you avoid.