Those rolls of hay are called round bales.. The price varies depending on the kind of hay (grass or legume), its quality and on the supply/demand in the region where it's being sold.
Semi-permanent hair color has smaller molecules than temporary dyes. These dyes only partially penetrate the hair shaft. For this reason, the color will survive repeated washing, typically 4â5 shampoos or a few weeks.
Permanent color uses a developer (usually 10, 20, or 30 volume) to change the color fo your hair. This color is, as the name suggests, permanent. It will not wash out. Some people find that their hair will not hold permanent red hair color molecules. Usually this is caused by hair damage, but it could also be natural porosity issues. Permanent hair color is supposed to be called âhair colorâ, not âhair dyeâ. I donât know when it became the standard term, but a lot of salon professionals get really upset about it, so itâs best to use the correct term. Semi-Permanent. One of the terms you hear most when referring to crazy colors is âsemi-permanentâ.