Great article on The Science of Black Hair about things to consider when thinking about coloring your hair.
Color Smart: 4 Things You Should Consider Before You Color Your Natural Hair
By The Science of Black Hair
"Taking your hair to the next level with color can be a really exciting experience. Color can jazz up a boring puff, add dimension to locs and twist outs or really turn heads as a simple statement piece on TWAs. While going darker, adding lowlights or coloring within your natural color range won’t cause you too many problems—the drastic color leaps upward (more than 3 shades beyond your natural color) can really take a toll on your hair. Before you engage in any hair altering experience, first understand and weigh the risks. Never ever color your hair on a whim or without a gameplan for aftercare. Finally, decide if you trust yourself enough to do it yourself. Be honest with yourself and say, Self— do you really know what you are doing? What if this color is unsuccessful? Am I prepared for breakage? Am I prepared for a weird color result? Before you take the color plunge, here are some things to consider. You May Experience:
1.Curl pattern changes. Yes, coloring textured hair can sometimes result in temporary, unpredictable changes in your hair’s curl pattern. Sometimes, the changes are permanent. Whenever you alter or manipulate the hair’s protein bonding arrangement a slight relaxing effect can occur. These curl pattern changes are less likely to occur in coarse hair textures (coarse refers to the diameter of the hair fiber, not the feel of the fiber), and are more likely to occur in those with fine to medium hair textures. Prior damage may also influence whether or not you experience changes in your curl pattern. Using a protein reconstructor after coloring may help some lost curls find their way again.
2.Increases in hair porosity. Products that lighten the hair always require direct access to the hair’s cortical layers. When the hair’s cuticle is breached in this manner, the hair’s natural porosity increases leading to a dryness that hardly ever lets up. When porosity increases, dryness becomes a major complaint because moisture is next to impossible to hold securely within the fiber. Your hair
