One issue that comes up when you use quotation marks is where to put other punctuation like periods, commas, and question marks. Should they go outside of the quotation marks or inside? The issue is complicated because there are two different accepted answers: one for American English and another for British English.ne issue that comes up when you use quotation marks is where to put other punctuation like periods, commas, and question marks. Should they go outside of the quotation marks or inside? The issue is complicated because there are two different accepted answers: one for American English and another for British English.
For a PERMANENT Color Result, 20 Volume is the MINIMUM recommended Volume. If your hair is dark already-Medium Brown To Black, then 10 Vol. will give a Long-Lasting (But NOT Permanent) color that will deepen and enrich the shade for about 15 to 20 washes.eport Abuse. 10 volume lifts 1 level and deposits (goes darker), 20 volume lifts 2 levels, 30 volume lifts 3 levels, and 40 volumes lifts 4 levels. This is increased 1/2 a level with bleach. So if you are dying your hair black 10 volume is the right one to use. Source(s): I am a hair stylist.
How long does demi permanent hair color last? Demi permanent hair color can last up to 6 weeks and typically fades after 20 to 28 hair shampoo washes. As a hair-coloring agent, demi permanent formulas are used to enhance natural hair color, to darken the natural hair shade and to refresh previously colored hair.