An intravenous pyelogram (IVP) is an x-ray examination of the kidneys, ureters and urinary bladder that uses iodinated contrast material injected into veins.n intravenous pyelogram (IVP) is an x-ray examination of the kidneys, ureters and urinary bladder that uses iodinated contrast material injected into veins.
Demi-permanent hair color is designed to enhance and intensify natural or previously color-treated hair. It doesnât permanently alter hair color, but it is long-lastingâup to 24 shampoosâand fades gradually, so you donât end up with a harsh regrowth line.
1 If the color you use is too ashy, say, your skin will look drab and old, says Saboski. 2  You also risk a scalp reaction if your skin doesn't tolerate the dye chemicals. 3  To do a patch test, apply the dye on a small section of your hair, and see if the color is too light, dark, or ashy. Demi-permanent color is a mixture of permanent and semi-permanent dyes. 2  It doesn't have the power to lighten dark hair, but it can match or deepen your color. 3  You can also try semi-permanent dye, which, as with demi-permanent color, won't lighten your hair.