Here is my experience with henna. I've been using this for the past 3 years now. As you can see from my pic I have dark hair. Once the greys started sprouting I decided on the henna because my hair is thin. Years ago I tried traditional hair dyes and it fried my hair. I henna once a month. My hair now is a deep burgundy-deep dark red in the sunlight. If you use pure henna it will not dry out your hair. There are brands out there that put other stuff in there and this is where the problem lies. If you buy quality body art henna with no additives, you'll find that your hair will become silkier and shinier. The only thing that I've found that may be considered a negative (depending on how you look at it) is even though my hair is thin, it used to be slightly wavy. Since using henna it is stick straight now. That's ok with me because it's not frizzy anymore. I noticed in your pic you have lighter hair. Get a sample from Catherine (www.hennaforhair.com/samples/index.html) and use the hair left over from your brush to see if this is going to work for you. The saturation of color comes from how long you leave it in and how often you use it. At first it'll be really bright, after a couple of days the color oxidizes and settles down. This is permanent so the only way to get rid of it is to cut it out. My greys are actually pure white and the henna makes it a vibrant red (which I like). Get a sample and check it out. Check out the the site, you can achieve different colors with different natural herbs blended in.