Burn-XT Review 2026: Current Label & 270mg Caffeine
Updated: August 23, 2026 | 10 min read
How we review + disclose:
Some outbound links are affiliate links. We review current listing details, stimulant load, label transparency, and ingredient doses before linking out. This page is informational and not medical advice. See our editorial policy, sources, and disclosure.
This review rechecked the current Jacked Factory Burn-XT label on August 23, 2026. It focuses on the disclosed ingredient amounts, the 270mg caffeine full serving, and what NIH guidance says about the limited weight-loss evidence.
Searching for Burn XT or BurnXT?
This page covers the same Jacked Factory product usually written as Burn-XT. The spelling is not the important part. The real question is whether a 270mg caffeine formula fits your tolerance, workout timing, and sleep schedule.
Quick Verdict: Burn-XT has a fully disclosed label, so its 270mg caffeine serving and ingredient amounts are easy to audit. That transparency is useful, but NIH describes the average weight effects of caffeine, green tea, and carnitine as small and says capsicum evidence is insufficient.
Use the Stim Fit Checker before you buy. It factors in your current daily caffeine, pre-workout use, training window, sleep sensitivity, and medical red flags before routing you toward a stimulant or stim-free path.
Key Specifications
Caffeine
270mg
Full Servings
30 (60ct)
Caps/Serving
2
Category
Stimulant
Ingredients Breakdown
Unlike many competitors using proprietary blends, Burn-XT lists exact amounts for each ingredient. Here's what's in each 2-capsule serving:
The current 2-capsule serving lists 270mg of caffeine, or 135mg per capsule. NIH says caffeine might help people lose a little weight or gain less weight over time, but regular use can create tolerance and higher intake can increase side effects.
Acetyl L-Carnitine (700mg)
Carnitine has a biological role in energy production, but NIH says weight-loss studies show only a small average effect. The 700mg label amount should not be treated as proof of an outcome.
Green Tea Extract (450mg)
NIH says green tea might help with only a small amount of weight loss. Concentrated green tea extract can cause side effects and has been linked to liver damage in some people.
Capsimax Cayenne (50mg)
Capsimax is a branded capsicum extract. NIH says there is not enough research to know whether capsicum helps people lose weight, and a branded delivery form is not proof of a predictable calorie effect.
BioPerine (5mg)
BioPerine is a branded black pepper extract included by the manufacturer. This page does not assume a fixed absorption increase or translate that inclusion into a weight-loss outcome.
Pros and Cons
Pros
Fully transparent label (no proprietary blends)
Caffeine total is easy to compare
Current official product page available
60-count bottle provides 30 full 2-capsule servings
Cons
High caffeine (270mg) - not for sensitive users
Late intake can interfere with sleep
May cause jitters if stacked with pre-workout
No appetite suppression ingredients
Who Should Use Burn-XT?
People comparing disclosed labels and known stimulant totals
Buyers willing to count every caffeine source before deciding
Directions: Follow the current label and do not exceed its stated limit.
Timing: Leave enough time before bedtime to protect sleep; individual sensitivity varies.
Caffeine Math: The Main Mistake People Make
The biggest risk with stimulant fat burners usually is not the product alone. It is the total stimulant load from coffee, pre-workout, energy drinks, and other supplements in the same day.
Burn-XT already contributes 270mg of caffeine per full serving. If you also drink two coffees or use a pre-workout, your daily intake can climb fast. That is where jitters, anxiety, elevated heart rate, and sleep problems usually show up.
Track all caffeine sources (coffee, tea, pre-workout, energy drinks, sodas)
Avoid late doses if sleep quality matters for fat loss and recovery
Do not stack by default just because the label says "advanced"
For most people, better sleep and consistency will matter more than squeezing in more stimulants. If Burn-XT causes sleep disruption, the net result can be worse training and appetite control the next day.
What to Verify Before Buying
Affiliate reviews often focus on ingredients only. That is not enough. Before buying, verify the current listing details directly on Amazon or the manufacturer page because formulations, label images, pricing, and serving counts can change.
Price per serving: Compare cost based on servings, not bottle price alone
Current label image: Confirm ingredient amounts match what you expect
Seller / storefront: Buy from a trusted source to reduce authenticity issues
Serving size: Some users only tolerate 1 capsule, which changes value calculations
Return policy: Check the current seller or platform policy before ordering
If your goal is appetite control, stimulant energy alone may not solve the real problem. Compare Burn-XT against options that fit your actual use case instead of buying the best-seller by default.
Burn-XT vs. Stim-Free Alternatives (Who Usually Does Better)
Burn-XT may be a better fit if you train in the morning, tolerate caffeine well, and mainly want energy + thermogenic support while cutting.
Stim-free options may be a better fit if you work out later in the day, are already drinking a lot of coffee, or want a supplement that will not interfere with sleep. Sleep quality often has a bigger impact on adherence and weight loss than an extra stimulant dose.
If that sounds like you, use our non-stimulant fat burner guide first and compare ingredients with your schedule, caffeine tolerance, and budget.
Frequently Asked Questions
How much caffeine is in Burn-XT?
The current official label lists 270mg of caffeine anhydrous per 2-capsule serving, or 135mg per capsule. Compare that amount with coffee, pre-workout, energy drinks, and every other daily source.
Can I stack Burn-XT with pre-workout?
Combining Burn-XT with a caffeinated pre-workout adds their stimulant totals. Compare both current labels and do not assume that reducing or spacing one dose makes the combination appropriate.
When will I see results?
A stimulant effect can be noticeable soon after a dose, but that does not prove fat loss. NIH says evidence for weight-loss supplements is limited, so there is no reliable universal results timeline.
Is Burn-XT third-party tested?
Jacked Factory states their products are manufactured in cGMP certified facilities in the USA. However, they don't prominently advertise independent third-party testing. If this is important to you, look for NSF or Informed Sport certified alternatives.
Are there any side effects?
Common side effects relate to caffeine: jitters, increased heart rate, anxiety, or sleep disruption if taken too late. Starting with 1 capsule helps assess your tolerance. Discontinue if you experience adverse effects.
Can I take Burn-XT every day?
Follow the current manufacturer label and do not exceed its directions. NIH notes that caffeine tolerance can build with regular use, and side effects are a reason to stop rather than increase intake.
Can I still drink coffee with Burn-XT?
Coffee adds to the 270mg in a full Burn-XT serving. Account for every caffeine source and do not assume the combination is appropriate based only on familiarity with coffee.
The Bottom Line
Burn-XT's disclosed label makes its 270mg caffeine serving and other ingredients easy to compare. Transparency is valuable, but NIH guidance does not support treating the formula as a reliable or predictable fat-loss result.
If caffeine is a poor fit, compare the current labels and evidence caveats in our non-stimulant guide.