Choose Options Quick view BULK L-Theanine Powder Hard Rhino MSRP: Now: $325.00 - $1,179.00 Was: L-Theanine is an amino acid commonly found in Green Tea leaves and derived from the leaves. This amino acid has shown to help with alertness, calming & soothing effects, and blocks the excess... MSRP: Now: $325.00 - $1,179.00 Was: Choose Options Quick view