Tressa Watercolors BB Demi-Permanent Hair Color in 4RB Dark Red Blue is a professional color glaze designed for rich, dimensional tone. This demi-permanent formula deposits deep red-blue reflects while respecting the natural depth of the hair. It is suitable for unisex use and is sold in a 2 oz size.

As a demi-permanent color, it is typically applied to pre-lightened or naturally dark hair to enhance shine and tone without a strong lift. The 4RB shade falls in the dark level with red and blue undertones, making it a choice for cool, vivid results. Always follow the manufacturer's processing and developer guidelines for best performance.

This listing includes one 2 oz unit of Tressa Watercolors BB Demi-Permanent Hair Color in 4RB Dark Red Blue. Please review the shade and developer requirements before use. Store according to the packaging instructions and keep out of reach of children.