I ordered the B12 for my wife from Amazon DE (great service btw, ordered last Saturday, arrived Thursday morning). Her loading injections were the methylcobalamin type and I inadvertently bought the cyanocobalamin formula. She's concerned that there may be some differences in the way the 2 types work which wouldn't benefit her recovery. Are there any drawbacks to using this formula after the loading ones? Does anyone have any negative experiences or advice from using both?
Many thanks for any advice offered!