Contact

For corrections to any factual content, feedback on the calculator, or partnership inquiries, email [email protected].

For technical issues — calculator bugs, broken links, rendering problems — the fastest route is to open an issue on the project's GitHub repository .

What I can't help with

I do not provide medical advice and cannot answer questions about dosing, protocols, or whether a particular compound is appropriate for you. Please consult a licensed healthcare provider for any medical question.

I do not sell peptides and cannot make vendor recommendations. Please do not email me asking where to source research chemicals.

What I genuinely want to hear about

Corrections to factual content are welcome. A wrong reported half-life, an outdated vial size, a mislabeled receptor target, a broken citation — if you're a researcher, clinician, or careful reader who spots an error, please include a published source if you have one handy and I will update promptly.

Feedback on the calculator UX — anything that was confusing, any edge case the warnings didn't catch, anything that could be clearer on mobile — is also very welcome.

About me

I'm Dennis Drenner, a former biologist and biohacker based in Medellín, Colombia. Read more on the about page.