Key formula highlights: very high L-citrulline malate (≈6,000 mg), arginine AKG (≈4,000 mg) and a pump-first approach. Also contains beta-alanine and higher-dose caffeine in the regular version.
Pros: exceptional pump ingredients, clear dosing for vasodilation.
Cons: if you want huge stim, check stimulant amount; best combined with proper hydration.
Source: BeBulk product page. :contentReference[oaicite:10]{index=10}
Key formula highlights: multiple caffeine sources totalling ~400 mg per serving, 4,000 mg L-citrulline, 2,500 mg beta-alanine and tyrosine + choline for focus.
Pros: huge energy + focus; engineered for experienced stimulant users.
Cons: too strong for beginners; try half dose first.
Sources: 5% Nutrition / retailer listings. :contentReference[oaicite:11]{index=11}
Key formula highlights: moderate caffeine (~150–200 mg depending on variant), beta-alanine (CarnoSyn®), and creatine in some formulas — good for many lifters.
Pros: beginner friendly, predictable effects, lots of flavors.
Cons: not the highest pump or highest stim.
Source: Cellucor C4 product page. :contentReference[oaicite:12]{index=12}
Key formula highlights: contains citrulline, beta-alanine, caffeine and added creatine — a full-spectrum approach for power and endurance.
Pros: good all-rounder, strong ingredient lineup for most athletes.
Cons: not as spicy as high-stim products if you want an extreme kick.
Source: Applied Nutrition product pages. :contentReference[oaicite:13]{index=13}
Key formula highlights: citrulline + arginine + caffeine plus special extracts (Aframomum melegueta, synephrine, capsicum) in certain editions for heat and drive.
Pros: unique sensory profile and strong pump + stimulant combo.
Cons: contains extracts that can increase heart rate — be cautious if stimulant-sensitive.
Source: ESN product pages. :contentReference[oaicite:14]{index=14}