# Copper Peptides (GHK-Cu) vs. L-Ascorbic Acid (Vitamin C): Oxidation & AM/PM Split

> Why layering GHK-Cu Copper Peptides (pH 6.0) with L-Ascorbic Acid (pH 3.2) triggers Cu2+-catalyzed redox inactivation and how to split them across AM and PM.

- **Canonical Interactive Tool**: https://www.dermlogic.io/compare/copper-peptides-vs-vitamin-c-layering-conflict
- **Live SVG Benchmark Badge**: ![DermLogic](https://www.dermlogic.io/badge/VitC%2BCu.svg)
- **1-Click Single-File Export (99¢)**: https://www.dermlogic.io/buy/micro_pass
- **1-Click 3-File Bundle ($1.99)**: https://www.dermlogic.io/buy/flash_pass