Contact
The most useful thing you can send us is a correction.
Corrections
Every figure on this site is generated from a small set of constants and equations, published on the method page. That makes errors cheap to fix and expensive to leave alone: a wrong constant is wrong on thousands of pages simultaneously.
If you can point to a source, we would rather hear it than not. Include the page, the figure you think is wrong, and what it should be. We publish the change and the date it was made.
What we cannot help with
We cannot tell you what to take, how much, or whether something is appropriate for you. Those are questions for a licensed clinician who knows your history, and no amount of arithmetic substitutes for one. We also cannot advise on sourcing or on the legality of any compound where you live.