I bought this to consume and it messed up my stomach. this is 35% but duluted down and is not the same oas 35%. the company told me to multiply the drop i take which came to 9 and it messed up my stomach. I went and bought the 35 % and have no problems. I am 60 and this stuff makes me fell like im 20 (the 35%) . Do not buy this to consume for peroxide therapy.