BlackMarketLabs
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Expires October 27, 2026
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Expires October 17, 2026
Editor's Verdict
👍 Pros
- ✓Black Market Labs is a long-established sports nutrition brand with genuine standing in the market rather than an anonymous storefront
- ✓Operates under a named legal entity, BlackMarketLabs.com, LLC
- ✓Ingredients are listed individually rather than concealed within a proprietary blend
- ✓The caffeine content is disclosed plainly at 300 mg, which is at least one honest figure
- ✓Beta-alanine, L-carnitine and acetyl-L-carnitine are genuine researched ingredients rather than invented ones
- ✓No added sugars, with fillers and additives stated as absent
- ✓Six flavour options including several well-liked profiles
- ✓Free shipping on orders over $75
- ✓Maintains a separate stim-free and pump category, giving customers who cannot tolerate stimulants an alternative within the same brand
- ✓Carries the FDA non-evaluation disclaimer rather than implying approval
👎 Cons
- ✕The formula combines bitter orange extract, which provides p-synephrine, with 300 mg of caffeine, and that specific pairing is the subject of documented adverse event reports including tachycardia, hypertension, arrhythmias and more serious cardiovascular events in young, apparently healthy users
- ✕Synephrine became the principal ephedra substitute after ephedrine alkaloids were banned from supplements, and Health Canada among other authorities has warned specifically against combining it with caffeine
- ✕At 300 mg, a single serving provides around three quarters of the 400 mg daily caffeine figure generally cited for healthy adults, before any dietary caffeine is counted
- ✕Mucuna L-DOPA adds a third pharmacologically active compound, which interacts with MAO inhibitors and Parkinson's medication, with no dose and no warning given
- ✕No warnings of any kind appear beyond the FDA disclaimer, with no cardiac caution, no age restriction, no pregnancy guidance and no advice on stacking with other caffeine
- ✕No dose is given for any ingredient other than caffeine
- ✕Beta-alanine requires roughly 3.2 to 6.4 g daily over several weeks to raise muscle carnosine and does nothing acutely beyond causing the characteristic tingling, so its presence in an undisclosed pre-workout dose is misleading
- ✕Oral L-carnitine does not increase fat oxidation in people with normal carnitine status, so the fat-burning rationale is not supported, and research doses of 2 to 4 g daily are far above what a pre-workout scoop is likely to contain
- ✕Agmatine sulfate has essentially no human efficacy evidence behind it
- ✕Direct claims to burn fat and burn calories, and to be the strongest thermogenic, are made with no studies cited
- ✕"#1 selling pre-workout for over a decade" is asserted with no source
- ✕The page says seven flavours while listing six
- ✕Stock status is contradictory, with every flavour shown as sold out or unavailable while In stock and Sold out labels both appear
- ✕No servings count is published, so the cost per serving cannot be calculated from the $49.99 price
- ✕No review count or rating is shown anywhere
- ✕No returns policy, refund terms or guarantee wording appears
- ✕No contact email, telephone number or trading address is published
- ✕No third-party testing or banned-substance certification is offered, which matters because synephrine sits on the World Anti-Doping Agency monitoring programme and pre-workouts are a documented category for undeclared stimulants
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Frequently Asked Questions
Free shipping applies on orders over $75. Below that, costs are calculated at checkout and no rates are published on the listing. Note that every flavour appeared as sold out or unavailable during our review while the page simultaneously displayed In stock and Sold out labels, so confirm availability before ordering.
No returns policy, refund terms or guarantee wording appears anywhere on the product page, only a link, and no contact email, telephone number or trading address is published. On a $49.99 purchase that leaves you without stated recourse, so get the terms confirmed in writing through the customer support page before ordering.
300 mg of caffeine anhydrous, though the page does not explicitly confirm whether that is per serving, and no servings count is given for the tub. For context, 400 mg a day is the figure generally cited as the upper limit for healthy adults, so a single serving supplies around three quarters of that before any coffee, tea or energy drinks are counted. Caffeine has a half-life of roughly five hours, so an afternoon or evening session will affect sleep.
This is the most important question on the page. Bitter orange extract supplies p-synephrine, a sympathomimetic compound that became the principal substitute for ephedra after ephedrine alkaloids were banned from dietary supplements. The specific concern is the combination with caffeine, which is what this product contains: case reports associate synephrine taken alongside caffeine with tachycardia, raised blood pressure, arrhythmias and, in a number of young and otherwise healthy users, heart attack, stroke and cardiac arrest. Health Canada and other authorities have warned specifically against combining the two. No cardiac warning, age restriction or pregnancy guidance appears on this listing. Avoid it entirely if you have any heart condition, high blood pressure, an arrhythmia, an anxiety disorder or thyroid disease, if you are pregnant or breastfeeding, or if you are under 18, and speak to a doctor first if you take any regular medication.
Only the caffeine. Beta-alanine, L-carnitine tartrate, agmatine sulfate, acetyl-L-carnitine HCl, bitter orange extract and mucuna L-DOPA are all named without amounts. That matters because the doses determine whether anything works: beta-alanine requires around 3.2 to 6.4 g daily over several weeks to raise muscle carnosine and does nothing acutely beyond the characteristic skin tingling, L-carnitine research uses 2 to 4 g a day, and agmatine has essentially no human efficacy data at any dose. Without the figures there is nothing to evaluate.
The evidence does not support the claim as made, and no studies are cited. Oral L-carnitine does not increase fat oxidation in people with normal carnitine status, which is most people, so the carnitine content does not do what the marketing implies. The thermogenic effect of caffeine and synephrine is real but small in terms of calories, and it comes with the cardiovascular considerations described above. Fat loss is determined by sustained energy balance, and no pre-workout meaningfully changes that.
Check carefully before using it. Synephrine sits on the World Anti-Doping Agency's monitoring programme, and pre-workouts as a category have a documented history of undeclared stimulants appearing in finished products. No third-party testing or banned-substance certification such as Informed Sport or NSF Certified for Sport is offered on this listing. If you compete in a tested sport, or your employer tests, this product should not be taken without batch-level certification, which is not provided here.
Every BlackMarketLabs code listed on smartstorereview is tested against the live checkout before publication and rechecked regularly, with expired codes removed and the last verified date shown beside each offer. Note that stock status on this listing was contradictory during our review and that the brand maintains a separate stim-free range, which may be the better option if the stimulant load here concerns you. Confirm availability and the final total before completing payment.
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Customer Reviews
2.1
★★☆☆☆
600 reviews
Travis Mendelsohn Verified Buyer
★★★★☆
Been using Black Market products for years and the Sour Gummy flavour is one of the better ones out there. Three hundred milligrams hits hard and I train fasted so that suits me. I will say I take half a scoop now because a full one had my heart going in a way I did not like during conditioning work.
Renata Lindqvist Verified Buyer
★☆☆☆☆
I took this before a session and ended up in urgent care with a heart rate over one sixty and blood pressure through the roof. The doctor pointed out it contains bitter orange, which is a synephrine source, together with three hundred milligrams of caffeine, and that this combination is exactly what the warnings are about. Nothing on the page tells you that.
Curtis Bamidele Verified Buyer
★★☆☆☆
I compete in a tested federation and synephrine is on the WADA monitoring list, so I needed batch certification and there is none, no Informed Sport, nothing. Beyond that, no ingredient except the caffeine has a dose listed, there is no serving count on a fifty dollar tub, and every flavour showed as sold out while the page said in stock.