Form | Advantages | Formulation Notes |
Caffeine anhydrous | High purity, consistent dosing | Bitter in taste, needs masking |
Guarana extract | Natural claim, polyphenol synergy | Slower onset, less precise dosing |
Green tea extract | Mild stimulant with antioxidants | May conflict with iron or B12 absorption |
Yerba mate | Trendy ingredient for focus blends | Distinct flavor, niche consumer profile |