1. If you ONLY used the semi permanent as your only color you apply to your hair - what percentage of gray does it cover? For example does it cover from 80-90%? Or 100% How would you quantify this. Does it cover as much or more than a competitive brand . The semi permanent Ecocolors botanical Haircolor covers the gray 100%, but it is a more blended cover as opposed to 100% coverage offered by a permanent color.It will make the grays a red color. The Ecocolors botanical haircolor with aryuvedic herbs is the best we've found because it is not grainy and rinses well. Therefore, we feel it is the best offered on the market. 2. Is it in liquid form? It is a powder you mix with water. 3. If you use the Red Semi Perm on Ash Brown hair with 40% gray - what would likely be the outcome? The Ecocolors Botanical Semi permanent Haircolorwill make the gray hair red. the ash brown hair will have a slight warm shine. 4. When will you have other Semi Permanent colors such as Auburn, Medium Brown and Light Brown? Ecocolors is researching to find alternatives in botanical haircolor.