Sterling Grey is an excellent color choice for eyebrows or eyeliners. This iron oxide and titanium oxide base color can be used on its own or mixed with browns such as Dark Walnut, Dark Chestnut, Taupe, or Black Onyx. Sterling Grey's formulation of many different colors ensures that there will be no color changes in the skin. Depending on the skin's undertones, Sterling Grey will heal into the skin as a dark/brown color. for the mature lady who does not want a black or dark brown eyebrow, a suggestion is to mix a couple drops of Sterling Grey with Taupe. A suggestion for an eyeliner on a mature lady would be Sterling Grey. To increase brown levels, mix Sterling Grey with Dark Walnut and Blending Gold.