Devil's Trick Hair Color Treatment, Mermaid Blue

Ishizawa-Lab Devil's Trick Mermaid Blue is a color-depositing hair mask designed to refresh and tone blue shades while conditioning. It has a creamy, spreadable texture that suits mid-length to long hair and is aimed at dyed or color-treated hair seeking temporary vibrancy. Notes on conditioning benefits and potential sensitivity are highlighted alongside the formulation’s notable conditioning agents.