So I got an email from Anthony today about the purity of resveratrol products and I recently started taking one that was new to me, though appropriately priced and from a large and well known brand. The capsules are very dark like a greenish black. The powder is a darkish brown and upon opening the capsule it smelled vaguely of frankincense.
Subjectively, it doesn't do what I expect, I hadn't been taking resveratrol for a long time and decided that I'd replace I3C with this stuff for resveratrol's ability to inhibit aromatase and it doesn't have the same effect as the I3C but I was expecting equal or greater efficacy.
Is this likely to be a substitution or fraud or can this occur from an extraction method. This is from a very well known brand and there is nothing but rice powder and cellulose listed for excipients... Do they even make dark cellulose? Don't the colorings of the capsules have to be labelled?