after 30 we do not have a store of this anymore and we progressively dry up...just imagine jello in the fridge...how leathery it gets as time ages the jello. we are no different than that. we are human jelly and we also dry up. zero point is the battery but if the wires are old and corrosive, then how can we transfer that energy with effectiveness. me i am a very serious researcher...why...because i fell from 50 feet into the grand canyon...i could have fallen 5000 feet more. the injury is serious and i am seriously going to do my best to figure if this one works. as health canada has already done 18months of testing up to this point and the fda has passed it for the usa, think that it is a go for me to go full out. what have i notice...that two ounces was too fast of a dose. i am going down to one ounce morning and night. that is 32 ounces in one bottle. that is 16 days. i want to do 2 but the changes are too much for me to do while i am a mom, daughter, massage, social media and girlfriend business owner. i also have all my other practices to do. yoga, walking the dog and just plain goofing off. i hope you will continue to speak to me and again i apologize for my reply last week, i was very overwhelmed with the new exciting process of promoting JUSURU!