You may have many questions when you are interested by dyeing your hair. Essentially the most essential might relate to the type of hair dye you need to use. Not all dyes are created equal, and the selection you make determines how your color looks, how your hair looks, and the way long the color lasts. Understand the differences between semi-permanent and demi-permanent hair color before you try a new look.
When to choose Semi-Permanent
Semi-permanent hair color is nice for first-time dyers or those who aren’t looking to make a drastic change. Semi-permanent dye has no ammonia and no developer, so no color is deposited contained in the hair shaft. Instead, the color coats the hair, which is why it’s sometimes called a “stain” or “wash.” Semi-permanent color is nice for changing or enhancing tones — but not for changing colors. It generally washes out in six to 12 shampoos.
When to decide on Demi-Permanent
Demi-permanent hair color results in a more obvious change for some who wants to avoid damage or anything drastic. It contains no ammonia but does have a small amount of peroxide, which opens the hair cuticle slightly so that some color will likely be absorbed. Demi-permanent does a better job of darkening hair than semi-permanent does, but it doesn’t lighten hair. Demi-permanent hair color will fade and typically last 12 to 24 shampoos.
What’s the Damage?
If you’re concerned about damage to your hair, avoid demi-permanent color. While the damage it causes is minimal, it is still more of a risk than with semi-permanent hair color. Because demi-permanent color opens up the cuticle slightly, there’s a chance hair will feel frizzy and dry afterward. Semi-permanent color only coats the hair strand, and the consequences wash out quickly.
Covering the Gray
Both semi- and demi-permanent dyes effectively cover gray, although demi-permanent is significantly better at it. Semi-permanent is acceptable for hair that’s minimally gray or just beginning to lose color. It will not be an extended-lasting solution, however. Demi-permanent will color the gray better and for longer.
Because both semi- and demi-permanent hair color fades quickly, take proper steps to ensure that the color lasts so long as possible. Use moisturizing shampoos and conditioners; avoid shampooing day-after-day, if possible; and cover your hair when going outside to shield it from the sun, which accelerates the fading process. Also, tie your hair back when understanding, doing chores or any other strenuous activity, as excess sweat in your hair will cause the color to rinse out.
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