Dark Labs | Adrenaline | 60 Capsules

Dark Labs Adrenaline is a fully disclosed high-stimulant thermogenic capsule engineered around one clear objective: create a fast, forceful surge in energy, focus, and fat-loss intensity through layered sympathomimetic compounds rather than softer lifestyle ingredients. This is not a general wellness fat burner and it is not pretending to be one. The formulation strategy is aggressive stimulant stacking—250mg total caffeine from two sources, 175mg 2-aminoisoheptane, 100mg N-phenethyl dimethylamine citrate, 50mg synephrine HCl, ProGBB®, yohimbine HCl, and rauwolfia standardized to alpha-yohimbine. The result is a formula designed for advanced users who want a sharp, urgent feel during training or cutting phases.

Caffeine anhydrous at 200mg delivers the immediate backbone of the formula. This is the most evidence-supported ingredient here, with robust data for alertness, reduced perceived exertion, and acute performance support. Caffeine citrate at 100mg adds another faster-acting caffeine source, but because citrate is not 100% caffeine by weight, the verified total caffeine for the formula is 250mg. In practice, that gives Adrenaline a quick onset with enough total stimulant load to feel much stronger than a standard 200mg capsule.

2-Aminoisoheptane at 175mg is a major driver of the product’s hardcore identity. The available literature on DMHA is limited and does not provide strong human oral safety or efficacy data, but within stimulant formulas it is used for its pronounced central nervous system kick and its synergy with caffeine. Mechanistically, it is generally discussed as a potent stimulant with monoaminergic activity, creating a more forceful, driven experience than caffeine alone. The same evidence limitations apply to N-phenethyl dimethylamine citrate at 100mg: human research is sparse, but in formula design it is included to intensify mood elevation, urgency, and mental stimulation.

Synephrine HCl at 50mg pushes the thermogenic side of the formula. Synephrine is commonly used in fat burners for adrenergic stimulation, supporting energy expenditure and appetite control. Yohimbine HCl at 5mg is a meaningful dose in category terms and is especially relevant for users targeting fasted training, as yohimbine’s fat-mobilizing utility is often discussed in low-insulin conditions. Rauwolfia vomitoria extract at 1mg standardized to 90% alpha-yohimbine adds an even sharper adrenergic edge. This pairing is one reason the product feels much more intense than caffeine content alone would suggest.

ProGBB® at 25mg rounds out the thermogenic profile. Evidence here is limited, but ProGBB is used as a carnitine-precursor ingredient in fat burners and is especially known for increasing the sensation of body heat and sweating. In a formula already loaded with stimulants, it contributes to the “thermo” experience more than clean energy alone.

The synergy is straightforward and deliberate: caffeine establishes alertness and performance drive, DMHA and phenethylamine-style stimulation deepen the CNS effect, synephrine and yohimbine compounds amplify adrenergic output and fat-loss intensity, and ProGBB adds heat. There are no proprietary blends here—every active is disclosed, which is a real strength in a category crowded with hidden-dose capsules. Day 1, most users will notice rapid onset, elevated body temperature, reduced appetite, and a distinctly urgent mental state. Over 2-4 weeks, the main change is not ingredient loading but familiarity: tolerance to stimulants can rise, which is why many advanced users reserve a formula like this for the hardest training sessions, fasted cardio blocks, or the toughest stretches of a cut.

How to Use Dark Labs | Adrenaline | Energy + Fat Burner