A trend involving the use of chinese peptides, particularly for biohacking purposes, appears to be growing in popularity, especially in the tech world and in cities like san francisco. The peptides are being obtained through a gray market that involves social media purchases from china, raising concerns about the safety and regulation of these substances. The use of peptides is being explored for various purposes, including pain management and cosmetic enhancements, although the deregulation of the industry and its potential impact are still uncertain.