Killer Labz | First Deg | 40 Servings

Killer Labz First Degree is a transparent, high-stimulant pre-workout built around one clear formulation philosophy: deliver an immediately noticeable training experience first, then support it with a meaningful pump and endurance base. This is not a minimalist caffeine-and-flavor product, and it is not a pure clinical-performance formula either. It sits in the “hardcore” pre-workout lane—fully disclosed, stimulant-forward, and designed for users who want intense energy, elevated focus, and gym-floor aggression with supportive doses of key ergogenics.

The pump/endurance core starts with 4,000mg citrulline malate (2:1). Research on citrulline malate typically clusters around 6-8g pre-workout, so 4g is below the classic full-study range at one scoop, but still meaningful—especially in a product that is clearly built to scale based on tolerance. Citrulline increases arginine availability and supports nitric oxide production, which means better vasodilation, blood flow, and nutrient delivery to working muscle. You feel that as improved fullness, easier warm-up sets, and a more persistent pump as volume accumulates. Beta-alanine at 1,600mg is half of the common 3.2g daily loading benchmark supported by multiple meta-analyses for exercise lasting roughly 1-10 minutes. That matters because beta-alanine works through muscle carnosine loading, buffering hydrogen ions and delaying the burning fatigue that forces reps to stop. At one scoop, it contributes; with consistent use or a higher total daily intake, it becomes much more meaningful over time.

Taurine at 1,000mg is a smart support dose. Taurine is associated with cell hydration, osmoregulation, and exercise performance support, and it pairs well with stimulants by helping smooth the overall feel of the formula. Agmatine sulfate at 500mg adds another layer to the pump side through nitric oxide-related signaling and can contribute to a denser, tighter workout feel. Together, citrulline + agmatine + taurine give this formula a legitimate blood-flow-and-performance backbone instead of making it a stim-only experience.

The focus and energy stack is where First Degree becomes distinctly hardcore. Caffeine anhydrous at 150mg gives fast onset. Infinergy® di-caffeine malate adds 50mg of a bonded caffeine source for a smoother, more sustained curve, bringing total labeled caffeine to 187.5mg per scoop. That alone would be moderate. What changes the character of the formula is the added stimulant complex: 150mg beta-phenylethylamine HCl, 125mg Eria Jarensis extract, 100mg Juglans regia extract, 25mg theobromine, and 1mg rauwolfia extract standardized to 90% rauwolscine. This combination is designed to feel sharper, more euphoric, and more aggressive than caffeine alone, with rauwolscine especially pushing the formula firmly out of beginner territory.

For nootropic support, First Degree uses 250mg L-tyrosine, 83mg choline bitartrate yielding 83mg choline, and 5mg Huperzia serrata extract standardized to 1% huperzine-A. Mechanistically, that is logical: tyrosine supplies catecholamine precursor support, choline contributes substrate for acetylcholine, and huperzine slows acetylcholine breakdown. The honesty point: these are not standout clinical doses compared with premium nootropic-focused pre-workouts, but they do reinforce the formula’s stimulant-driven concentration profile.

The system-level synergy is coherent. Fast and sustained caffeine sources create immediate and extended stimulation; PEA, Eria, Juglans, rauwolscine, and theobromine intensify mood, drive, and perceived urgency; citrulline, agmatine, taurine, and a touch of electrolytes support blood flow, hydration, and workout quality; beta-alanine adds cumulative fatigue resistance with consistent use. The transparency is a real strength—no proprietary blend, every active listed, every dose visible. In a category where “hardcore” often means hidden amounts and mystery panels, that matters.

What to expect: on day 1, the main story is the energy/focus hit and increased workout intensity. Over 2-4 weeks, consistent use improves the beta-alanine side of the formula as muscle carnosine rises, making repeated hard sets feel more manageable. First Degree is best understood as a transparent high-stim pre-workout with a respectable support base—not a pure clinical formula at one scoop, but a very intentional hardcore experience.