Riboflavin is subject to rapid photochemical degradation so I'm not sure topical application is appropriateI worked up to 30-40 drops of Energin per day and have almost completely cured my chronic headaches! I think it has to do with a chronic riboflavin deficiency leading to a sort of ocular rosacea, mentioned by Ray in this article: Rosacea, inflammation, and aging: The inefficiency of stress
Unfortunately, I get stomach gurgles and gas when taken orally, so I’m rubbing all of the drops my arms and legs lol. @haidut do you think it’s the riboflavin, the ethanol, or something else that might cause irritation? I haven’t had issues with your other supplements when taken orally.