Some protocols use BPC-157 only during the GLP-1 titration phase when GI support is most needed, then discontinue it once the maintenance dose is reached and well-tolerated
Even if both are the same concentration and from the same manufacturer, combining introduces contamination risk and makes it impossible to track the reconstitution date for the mixed solution
Ingredient Compatibility Chart The limited compatibility of GHK-CU with common skincare actives is its main drawback compared to second-generation formulations
Bacteriostatic Water is the first-choice reconstitution solvent for most water-soluble research peptides particularly those intended for multi-use stock solutions
Last reviewed: May 31, 2026 Last updated: May 31, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations
