This site names this specific bonus guide directly: the Personalized Usage Guide, valued at $39.
This site describes it directly as a guide to help you get the most from Gelagen's ingredients — worth reading it as the one bonus guide most directly tied to the core product itself, distinct from the other five, more general lifestyle guides.
This site publishes its own routine and timing guidance directly on its homepage and in its six-step checklist — worth comparing this bonus guide's content once received against what's already freely available on the site itself.