Ask what's really in the vial.

The name is only part of it. The exact molecule, how it's made, how it's taken and the evidence all change what a study means for you.

Check the identity

Other names, fragments, analogues and blends cause mix-ups. A study of the full-length peptide doesn't cover a shorter fragment. A trial of a combination can't tell you what each ingredient does alone.

Check the product

Evidence about a molecule says nothing about whether a given vial or cream contains it, or how pure it is. A prescription drug, a compounded version and a research-market vial come with different information and different oversight.

The FDA says compounded drugs aren't FDA approved, and the agency doesn't review them for safety, effectiveness or quality before they're sold. Compounding rules and a drug's approval are separate questions.

Look for what's missing

A study can be too small or too short to catch rare or late problems. "No side effects reported" means more once you know how many people took part, what was tracked and for how long.

Check status at the source

Approval, availability, compounding rules and sports bans are different things. They change over time and by country. Look for who made the call, for which product and use, where, and when.

Questions for your doctor

Does this evidence apply to me?
What benefits and harms showed up in human studies?
What's known about this exact product?
What proven options do I have, and what's still unknown?