Transparent Labs and Jacked Factory: Fueling Fat Loss with Science and Stimulant Options

Transparent Labs Recomp and Jacked Factory Burn XT have emerged as leading fat burner supplements in 2025, with recent evaluations and clinical data highlighting their unique formulations and effects. According to a comprehensive analysis by Fortune, Transparent Labs Recomp is positioned as the top fat burner overall due to its moderate caffeine content (125 mg per serving) and inclusion of scientifically backed ingredients such as ForsLean (a forskolin extract), Capsimax (cayenne pepper extract), green tea extract, and L-theanine. The supplement is Informed Choice certified and marketed for individuals seeking a balanced approach to weight loss without high-stimulant side effects. Testimonials from a registered dietitian, Jillian Robillard, MS, RD, LDN, indicate that users experienced improved energy levels and modest weight loss when combined with a structured diet and exercise regimen.

Burn XT by Jacked Factory, a thermogenic fat burner, has also received positive attention in 2025, particularly for its clinically studied formula. The product includes ingredients such as Acetyl L-Carnitine (700 mg), green tea extract (450 mg), caffeine anhydrous (270 mg), Capsimax cayenne pepper extract (50 mg), and BioPerine (5 mg), all of which are claimed to enhance fat metabolism and energy expenditure. A review from Total Shape notes that users reported increased energy levels and a reduction in appetite, although the high caffeine content (270 mg per serving) may not be suitable for individuals sensitive to stimulants. The product has also been highlighted for its transparency in labeling and absence of fillers or artificial additives.

Transparent Labs Recomp Stim-Free, a stimulant-free alternative to the original Recomp, has also been recommended for those avoiding caffeine. This version includes ForsLean, Capsimax, Paradoxine (a green coffee bean extract), and green tea extract, aiming to support fat loss and appetite suppression without the use of stimulants. According to Pete, a dietitian who tested the product, the Stim-Free version was well-tolerated and did not cause jitters or sleep disturbances. However, it may be less effective for those seeking a significant energy boost during workouts.

Burn XT’s thermogenic properties have been further validated by a clinical study, which demonstrated its efficacy in boosting metabolism and promoting fat oxidation. The study noted that Capsimax, in particular, contributed to increased thermogenesis and fat mobilization. Additionally, the inclusion of green tea extract and caffeine anhydrous supports metabolic rate and energy expenditure, making it a popular choice among those with moderate to high physical activity levels.

Both supplements have been evaluated for potential side effects. Users of Transparent Labs Recomp reported minimal adverse effects, primarily related to caffeine sensitivity and gastrointestinal discomfort when taken on an empty stomach. For Burn XT, the primary concerns centered on its high caffeine content, which could lead to jitters, anxiety, or insomnia, especially if consumed late in the day. However, both products are generally considered safe when taken as directed and when used in conjunction with a healthy diet and exercise routine.

In terms of pricing, Transparent Labs Recomp is available for $54.99 for a 60-capsule bottle, with subscription discounts available. Burn XT, on the other hand, is priced at $29.99 for a 60-capsule bottle, with the option to purchase larger quantities for longer-term use. Both products are marketed with a focus on affordability and effectiveness, with Transparent Labs emphasizing its Informed Choice certification and Jacked Factory highlighting its cGMP manufacturing standards.

In conclusion, both Transparent Labs Recomp and Jacked Factory Burn XT offer distinct formulations tailored to different user preferences and fitness goals. While Recomp is ideal for those seeking a moderate, well-tolerated fat burner with scientifically backed ingredients, Burn XT caters to individuals looking for a thermogenic formula with a strong metabolic boost. As with any supplement, it is important to consult with a healthcare professional before beginning use, particularly for those with preexisting health conditions or sensitivities.