Revlon Professional Color Excel in shade 6.3 Dark Golden Blonde is an ammonia-free, demi-permanent tone-on-tone hair colour supplied in 70ml. It blends grey, refreshes tone and adds a warm golden reflect with a glossy finish. Suited to gentle toning services, it deposits natural-looking colour and shine. Mix 1:2 with Color Excel Energizer developer, apply to dry unwashed hair and process for around 20 minutes. For professional use only; always carry out an allergy alert test before use.