Rainbow ResearchHenna Persian Black 4 Oz, 2 pack

A previous review mentioned the ingredients of this product are chemical. You really should get a dictionary and find out the meaning before your comment! The ingredients are the scientific name for Hanna, Indigofera and Lawsonia inermis are both natural plant-based ingredients commonly used in henna hair dyes.• Indigofera (typically Indigofera tinctoria) is a plant that produces a natural blue dye, often used in combination with henna to achieve darker shades like brown or black.• Lawsonia inermis is the scientific name for henna, a plant that naturally releases a red-orange dye.Both are 100% natural and plant-derived, not synthetic chemicals. However, some henna products may contain additives or synthetic dyes, so it’s always good to check for pure, high-quality sources.

I rarely write any reviews but this product is really good for anyone who is allergic to hair color. I ordered this for my mom and she loves it. My mom is EXTREMELY allergic to hair color and her dermatologist recommended this and she loves it ever since. It's better if you have someone to help you apply it for you. I usually help my mom do it by mixing it with warm water into a paste. I wear gloves and use my own hands and just rub the paste into her grey roots and eventually cover her whole head (be warned that it's very dirty so my mom usually wears a cape before doing this so nothing gets into her clothes, and it's better if you do this in the bath tub or outside). Be sure you leave it on for at least 1:30 or 2 hr before you wash it off (the longer the better). The color comes out is amazing, and my mom hair is really soft and shiny. She definitely loves it and kept asking me to order more for her. To keep the result she wants, I help her apply this every two-three weeks. This review is for Henna Powder Color & Conditioner, Parisian Black 4 oz.

I have severe allergies to hair dyes. My scalp will bleed and my skin will swell up into patchy scabby bloody mess.So hoping for a miracle and after such great reviews i figured to give rainbow henna a try. Before applying to my hair i did a test patch on my arm and on my foot.Within 2 hours i got an allergic reaction to the product on my arm but not on my foot for whatever reason. So for the testing i drew a fern on my arm because i rather have that than a random black blotch so not only did i get an allergic reaction it also didnt even dye the skin. Now i have a red itchy fern on my arm. Ive used henna before to dye my hair red before and it worked great with no allergic reactions. And i am also aware that black henna doesnt exist but i figured this would at least be a very dark brown. So for those people out there with allergic reactions to hair dye chemicals BEWARE THIS IS NOT SAFE!

I have black hair with gray all over it. This thing covered my grays for nearly 2 months. First time user, followed package instructions. The results show about a day after application. My hair was smooth and dark after application. The areas where the greys were, looked very, very dark violet in white fluorescent light although in sunlight looked black. And it's a pain to apply, leaving it on for about 90 minutes, it smells terrible but, it does the job and it's a thousand times better than the chemical, regular dyes (that also smell horrible). It's expensive. I have long hair down the middle of my back and had to use almost an entire jar but, hey, it's worth it. Results were great. Will continue to use and recommend this. I also recommend Googling other additional tips in order to cover the greys on black hair just in case. For example, I'd leave it more than 90 minutes next time.

I used coffee the first time I used to the second time pretty color, but it does not last

I've tried it only on brows, that's why - 4, but not 2. The color was not even closely black, more like brown. I have a dark grey brows, maybe that's why. I've hold it for 1 hour

I have been using Black Rainbow Henna and it has been working well. It lasts on my hair about 2-3 weeks. Initially I used dark brown rainbow henna, that didn't color my hair well. My natural hair color is black and I am Indian. Black color appears more dark brown. I use two Tetley tea bags and boiled them in water. I mixed henna with 2 table spoons of Apple cider vinegar and keep this mixture for 2-3 minutes and then add boiled tea water and then mix them well. I apply this mixture on my hair right away and cover my head with plastic cap. I keep the mixture on hair about 60 to 75 minutes.

I have been using this for about a year. Noticed my hair was getting thinner and thinner.The last time I used this product, left it on overnight. When washing off on the morning, my scalp was burning. Felt like a chemical burn. Not sure what they are putting in this, might be some kind of chemicals. I will never buy again, threw away the extra supply I had. From now on will only buy from direct source, you never know from these distributers.