Short answer: he seems neither purely scientific nor purely spiritual. His public profile points to a holistic, pragmatic approach with a clear scientific backbone and room for personal meaning.
Scientifically, he presents training in chemistry and biochemistry and uses a structured process that covers intake, safety, neurochemistry, lifestyle, nutrition, supplements, and integration. I cannot verify any peer-reviewed publications or a formal research role, so he appears to apply research rather than operate as an academic scientist.
Spiritually, his wording often touches on connection, inner insight, healing, and co-creating meaning with nature or the universe, in an experiential and non-dogmatic way. For a concise overview of this blend, see this summary.
Bottom line: more scientific in method, with a flexible spiritual layer.