To conceal grey hair that is resistant to colour, grey oxidising drops (G.O.D.) are used in any manufacturer's colour. By including G.O.D in the mix, permanent, demi, and semi-permanent colour performance is enhanced. When G.O.D drops are present, the Red Color family is particularly improved and heightened. By combining G.O.D and TCA (The Color Accelerator) with the colour mixture, maximum colour absorption is accomplished with a reduced processing time.

All POWERTOOLS products and G.O.D are compatible with each other. Red and warmer-toned hues are revived by adding 3–5 drops of G.O.D to shampoo.

G.O.D is color-friendly like all Dennis Bernard products, helping to lock in hair colour and guaranteeing colour fade-out prevention.