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L-Theanine + Caffeine by Sports Research is a dietary supplement in the sleep and stress category. Theanine, also known as L-γ-glutamylethylamide, N5-ethyl-L-glutamine, or γ-glutamylethylamide, is a bioactive, non-proteinogenic amino acid similar to the proteinogenic amino acids glutamic acid and L-glutamine. It is produced by certain plants such as the tea plant, and by some fungi. Theanine was discovered in 1949 as a constituent of green tea and was isolated in 1950 from gyokuro tea leaves. Theanine constitutes about 1–2% of the dry weight of green tea leaves.
text ingredients
1 Softgel(s)
Not to exceed more than 2 softgels daily. Caution: Keep out of reach of children and pets. Not to be used by individuals sensitive to caffeine. Do not exceed recommended daily intake. Do not use if safety seal is damaged or missing. Consult with a qualified healthcare professional prior to using this product, especially if you are pregnant, nursing, have a diagnosed medical condition, or are taking prescription medication. Contains: Tree nuts (coconut).