In fact, some nootropic stacks and brain-boosting formulas include both
Choose green tea if: You prefer mild caffeine stimulation You want a beverage-based option Choose caffeine-free L-Carnitine if: You prefer structured supplementation You want workout-linked fat metabolism support You are sensitive to caffeine Both approaches support weight management differently

Advanced Brain Support with ALCAR*: Vitalibre Acetyl-L-Carnitine + features Acetyl-L-Carnitine Hydrochloride (ALCAR), a highly bioavailable form known for crossing the blood-brain barrier to support mental clarity, focus, and memory.* Targeted Daily Cognitive Boost*: ALCAR works by enhancing neurotransmitter activity to combat brain fog, mental fatigue, and age-related cognitive declineideal for busy professionals or aging adults seeking sharper thinking.* Complete B Vitamin Complex + Iron: Our Acetyl-L-Carnitine + includes a full-spectrum B complex (B1, B2, flush-free B3, B5, biotin, B9, methyl B12) to help convert food into energy, support the nervous system.* Iron is thoughtfully added to promote oxygen transportperfect for all-day mental and physical stamina.* Made With You In Mind: Combining nature's nutrients with high-quality formulas, we create our first line of clean supplements to help you make confident choices for your health
Endocr Connect 10(1):7683