Can I take the Foundational Stack year round? Rudy Checo December 29, 2021 16:54 Updated Cycle Span Yes. It is designed to be the foundation of any additional Animal products you use. If you have further questions please reach out to our support staff at firstname.lastname@example.org or send a contact request here. Related articles I'm not sure if my product is authentic, how do I verify it? Comments 0 comments Please sign in to leave a comment.