Safe Peptide Co-Injection: Compatibility and Best Practices
Combining peptides in a single syringe can streamline a treatment protocol—but only when done with chemical precision.
Key compatibility factors:
1. pH sensitivity — mismatched acidity can destabilize peptides.
2. Solubility — improper pairing may cause precipitation or loss of potency.
3. Molecular modifications — PEGylated, acetylated, or otherwise modified peptides often don’t mix well with unmodified forms.
When done right, co-injection reduces injection frequency and improves adherence. When done wrong, it can lower effectiveness or create safety risks.
Our free guide explains the science of safe peptide stacking and includes a compatibility chart based on chemical properties—not guesswork.