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- (L-carnitine L-tartrate)
Neff, K
Studies show it can improve muscular endurance, particularly in efforts lasting 1-4 minutes, such as repeated sprints or heavy lifting.82 Betaine anhydrous (2.5g) The formula also balances stimulation with calm focus: 200mg of caffeine is paired with 200mg of L-theanine, an amino acid known to counter some of caffeines jitters
J Exp Clin Cancer Res
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