Semi-permanent hair colours are a compromise between both temporary and permanent dyes. They last longer than temporary colours. They typically fade after 4 to 6 weeks or about 8-12 washes.

"It's important to keep in mind that this is likely a temporary ... At present, her hair looks close to her natural mid-brown shade – possibly as it’s not advised to dye your hair following ...

"Over the years, it's become more and more dramatic as he grows up." Hair color remains a continued source of interest but also judgment in society today. Take the example of "redheads." ...

Women who regularly use permanent hair dye may be putting themselves at increased risk of bladder cancer, new research findings suggest. The study is the first to show that how often you use hair ...

Background: Finding alternative hair dyes for individuals allergic to para-phenylenediamine (PPD) has been difficult. Newer permanent and demipermanent hair dyes that have replaced PPD with para ...

depending on your hair type). Luckily, my many bleach and dye escapades mean I’ve tried plenty of color-safe formulas. By now, I know the stripping ingredients to avoid and the nourishing ...

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. Taylor Leamey writes about ...

Tested both in the salon and at home, these are the best hair dryers of 2025, as recommended by celebrity hair stylist Timothy David This article contains affiliate links. The products or services ...

Fluorescent dyes are non-protein molecules that absorb light and re-emit it at a longer wavelength. They are often used in the fluorescent labelling of biomolecules and can be smaller or more ...

Feb. 20, 2024 — The drug finasteride, also known as Propecia or Proscar, treats male pattern baldness and enlarged prostate in millions of men worldwide. But a new study suggests the drug may ...