Can someone tell me the difference is between shades 9 and 9.0?

[aclassiccase]

I know I should know but I just can't remember!
Please help

 

[AcidPerm]

I don’t understand your question. Can you be more specific?

 

[adamlea87]

I think OP is asking what it means when a neutral shade number is followed by a zero? This usually means shades such as e.g "9.0" or "9/00" are designed for extra white hair coverage.

They are heavier in pigment and give a more opaque result which can be useful for stubborn white hair.

 

[ronray]

I know I should know but I just can't remember!
Please help

It depends what brand. Some have a 9 which is natural and then 9.0 is for resistant white coverage. In other brands 9/0 is natural and 99/0 is resistant white coverage.

 

[adamlea87]

It depends what brand. Some have a 9 which is natural and then 9.0 is for resistant white coverage. In other brands 9/0 is natural and 99/0 is resistant white coverage.

Wella numbering would be 99/0 for a deeper shade wouldn't it? I think it makes more sense that way!

 

[ronray]

Wella numbering would be 99/0 for a deeper shade wouldn't it? I think it makes more sense that way!

Yeah it's roughly about half a shade darker especially if the client isn't 100% white and I'm sure with wella 9/00 is for a cooler natural result, but they grey coverage isn't the best.