These are devices I have used and recommended to biohack. There are many more biohacking tools that I don't list here because I haven't used them, or I have used but don't find them effective, or I am in the midst of testing them.
I have included a note on any applicable discount when you purchase them through the links on this page.
The items are listed by names alphabetically. Items in the top shall not be perceived as better than those in the bottom. They are all excellent for their purposes.