Bioaqua Retouching Hair PenBioaqua Retouching Hair Pen is a convenient, quick fix solution for covering grey roots and uneven hairlines. Its smooth, easy to use applicator delivers natural looking color that blends seamlessly with your hair. Ideal for travel and everyday touch ups, it provides instant coverage without leaving residue or stickiness. Benefits: Instantly covers grey roots and thin hairlines Blends naturally with your existing hair color Easy to use pen design for