1 With all needed parts and labor, hiring a plumber to install a traditional gas water heater costs $300-$3,500 or more, depending on capacity (with 40 or 50 gallons the most common sizes); length of warranty (typically 5-12 years); and the amount of repairs required to meet current building codes.
L-Theanine and Caffeine Dosage. Theanine and caffeine are most often used in a 2:1 ratio. Each capsule contains 200mg of theanine and 100mg of caffeine. For best results, individuals should take 1 theanine and caffeine capsule per day.
PRO. 1  L-theanine, a water-soluble amino acid, is found mainly in green and black tea, and to a lesser extent in mushrooms. 2  L-theanine has demonstrated benefit for patients diagnosed with anxiety by increasing levels of dopamine and GABA in the brain. 3  L-theanine is generally regarded as safe for adults in moderate amounts.-theanine should be used only under a doctorâs supervision if you are taking drugs for chemotherapy because it increases the activity of some cancer chemotherapeutic agents. Do not take L-theanine with cholesterol lowering medications. DOSAGE: 200 to 400 mg once or twice daily. (1200 maximum a day).