All Halcyon products are manufactured in the USA in a FDA registered facility using cGMP (current Good Manufacturing Practice) standards. Halcyon is designed to be taken daily to support memory, focus, and mood as well as long-term brain health. †
Bottle contains 60 capsules - 1 month supply. Orders auto-renew and you can skip a shipment or cancel anytime. 100% Money Back Guarantee. If you don’t love it, it's on us.
Halcyon is a growing team of scientists, innovators and professionals who are passionate about cognitive health and performance. Our teams are located in both New York and San Francisco.
Marcus has been a Founder, CEO, and Advisor to companies spanning consumer electronics, blockchain, and biotechnology since 2012. Starting in 2009, Dr. Weller served as 1 of 10 Americans selected by the Humboldt Foundation to develop scientific ties in the field of Psychology between Germany and the United States. While in Germany, Dr. Weller also studied Cognitive Neuroscience at the University of Munich. After graduating from Wayne State University with a PhD in Industrial Psychology with a subfocus in Data Science, Dr. Weller joined Maxim Semiconductor in Silicon Valley before founding one of the first consumer Augmented Reality technology companies in 2012. Dr. Weller is an inventor on over 20 patent applications spanning areas including biotechnology, consumer electronics, and pharmacodynamics, and has been fortunate enough to learn alongside some of the best innovators in the world.
Jay has been a Founder, CEO, Board Member, and Advisor to leading life science companies for over 30 years. After graduating from Yale University School of Medicine with MD and PhD degrees with a focus in psychopharmacology, Dr. Kranzler joined McKinsey & Company where he contributed toward founding the Firm’s pharmaceutical practice. Later he became CEO of Cytel Corporation, which he took public before becoming CEO of Cypress Bioscience and Karuna Pharmaceuticals. Dr. Kranzler joined Pfizer in April 2013 as Global Head, External R&D Innovation, Pharmatherapeutics & Neuroscience Lead, Worldwide Research & Development. During his career, Dr. Kranzler has developed drugs, medical devices, as well as diagnostics, and is the inventor on over 30 patents. Dr. Kranzler received the Innovator award from the International Society of CNS Clinical Development, and is an Adjunct Professor at NYU’s Stern School of Business and School of Medicine, and serves on The NYU Entrepreneurial Institute’s Advisory Board.