Sir, i have my summer vacation starting today so and i am doing workout for aound 3 years and i look good but i want to increase my weight from 81 to 90 ,so i thought in these summer vacation i could try mk677 for first time only for 2 month to gain 3 to 6 kg of muscle and also do some fat loss and i am not trying other compound because i heard that other compounds effect natural test level(even slightly).so sir can i inly run mk677 for 2 month you said 2 days on 1 day off and can you suggest the dosage(how much mg).