Q: Does HyStool contain any chemicals ? HyStool bags to not contain any chemicals. The bags will degrade into carbon dioxide and water without leaving any micro plastics. By Andrew2638|2024-11-07T20:36:35+00:0031st October 2024| Share This Story, Choose Your Platform! FacebookXRedditLinkedInWhatsAppTumblrPinterestVkXingEmail About the Author: Andrew2638