Since my allergic reaction to the black color I had put in last year, I've been very wary of color. Henna hasn't helped me in terms of moisture. I remembered how a semi-permanent color always gave life, shine and moisture to my hair. I am in desperate need of all three, so I decided to go with an Adore Plus Extra Conditioning color in Dark Red Brown. (I'm on my own no-buy challenge, but I thought I could make an exception!) I noticed a difference in moisture and shine as soon as I applied it! Even though the directs say you don't need to use heat, I sat under the dryer for about 25 minutes, just to make sure my hair absorbed it and it would cover my grays. I reviewed the Adore in black almost 5 years ago here. I really like how this gave my hair some weight and seems to allow other products to work better.
I'm not sure why this works for me, since there are some ingredients like silicone and aloe vera juice that usually don't agree with my low porosity hair, but it does work. It didn't completely cover my grays- they're still a little orange from the henna, but my hair is much improved. Also, it probably won't last more than 2-3 washes, but I'm okay with that. It's very affordable, and since it feels like a conditioner, I don't mind applying it often.