The DevaCare line is specifically designed for color-treated, curly hair. It contains Vitamin C, which supposedly makes your color stay true longer. I say supposedly because I have no idea if Vitamin-C is capable of slowing color fade. The DevaCurl line is for curly hair in general. I've used both, and the results seem to be the same, I thought that I would love the DevaCare line, because I love citrus scents, but it really doesn't smell like citrus. It doesn't smell bad at all, just not like I expected. I prefer the DevaCurl line.

Hope this helps!
How's My Hair?
Review: L'Oreal Evercreme Cleansing Conditioner
Review: Yes To Carrots Nourishing Shampoo & Pampering Conditioner + 35% off at YTC.com

3a-b, fine & medium texture, medium-high porosity from years of damaging. I'm addicted to changing my hair color.
Cleansing: No-Poo, Elucence MBS, YTC Poo,
Conditioner: One Condition, JC Too Shea!, YTC Condish, Elucence MBC, Joico Daily, KCKT
Styling: KCCC, LALPS, BRHG, Biotera Gel
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