I rarely write any reviews but I have to brag on these non-toxic hair coloring product. I have been looking for a very long time for something non-toxic to color my hair. Here is my experience: I have fine and slightly curly (frizzy) hair that is now a natural salt & pepper color (more salt than pepper) and my husband has soft but not as fine hair that is now naturally all salt color.My husband was very skeptical but as a cancer survivor had been urging me to find an alternative to the harsh coloring chemicals that we were previously using.I used myself as the "guinea pig" and did my hair first. To give you some background, I did not color my hair for almost a year and did not use any conditioner when washing my hair for that same period. My hair didn't have any chemical build-up.I purchased the following 3 products from Amazon and used the following recipe:- 50 g Hannah Natural 100% Pure Henna Powder, 100 Gram (Red/Copper Color)- 50 g Hannah Natural 100% Pure Indigo Powder for Hair Dye, 100 Gram (Black Color)- 2 tablespoons Hesh Herbal Amla / Indian Gooseberry Powder For Dark & Healthy Hair Naturally - 100 gms hesg (Conditioner Powder)- Dash of regular table salt (helps to release colors)I mixed these dry ingredients ensuring that there are no lumps.Then I mixed in:- 1 tablespoon Olive Oil (makes it much easier to work with and saturates much hair better)- 1 tablespoon Lemon Juice (also helps to release colors)- Few drops of aroma skin quality essential oil (optional - decreases strong tea-like smell, because I don't like tea or its smell)- Hot water - about 1.5 cups, enough to make cake batter consistency mixture.I used a hand whip from my kitchen to ensure it was properly mixed and lump free.Then I let it sit till it cools down enough so as not to burn my scalp. When cool, I saturated my whole head - actually over-saturated - and worked it into every strand of hair ensuring that every strand had equal coverage.Then I got some paper towels and rolled them into a loose roll to wrap around my neck as a drip catcher. Then I used plastic wrap from my kitchen and wrapped my whole head with it, catching the upper edge of the paper towel roll to keep dripping to a minimum.Then I set my timer for 1.5 hours.I was really excited to rinse my hair and see how it came out. I was absolutely delighted!!! My natural color is dark brown and this new color was slightly more like a dark copper brown color and turned out beautiful. My color looks very natural and suits my skin tones.My first coloring lasted 2 months and then I was starting to see some white peeking through. So, I did it again. I have attached a picture that shows the top of my head about 2 weeks after my second coloring.Now my husband was a different story. He is much more conscious of his "salt" colored hair. He insisted on keeping the store bought colorings going until he could see how my Henna coloring came out. He is also a huge fan of hair conditioner. So, his hair had a great deal of chemical build up.For my husband's first coloring, I used the same recipe that I had used on my own hair. Unfortunately, it turned his hair an orange/red. It was by no means an ugly color just not very natural looking with his skin tone. After some trial and error colors (we did about 3 colorings in one weekend, we came up with the perfect color combination for him).His natural color is an ash brown color. To get close to his natural color that would work for his skin tone, I used the following recipe on his hair and it came out a darker brown with a slight tinge of copper when the light hits it the right way..... looks very healthy and natural..... makes him look very handsome.Here's the final recipe that worked well on my husband25 g Hannah Natural 100% Pure Henna Powder (Red/Copper Color)75 g Hannah Natural 100% Pure Indigo Powder for Hair Dye (Black Color)2 tablespoons Hesh Herbal Amla / Indian Gooseberry Powder For Dark & Healthy Hair Naturally (Conditioner Powder)Dash of regular table salt (helps to release colors)I mixed these dry ingredients ensuring that there are no lumps.Then I mixed in:2 tablespoon Olive Oil (makes it much easier to work with and saturates much hair better)2 tablespoon Lemon Juice (also helps to release colors)Didn't use any aroma essential oil because my husband loves tea and the smell of tea.Hot water - about 1 3/4 cups, enough to make cake batter consistency mixture.I used a hand whip from my kitchen to ensure it was properly mixed and lump free.Again, I let it sit till it cooled down enough to put on his scalp. His scalp was much more sensitive than mine, which mean the mixture was hardly luke-warm. I then over-saturated his whole head and worked it into every strand of hair ensuring that nothing had been missed.Then I wrapped the paper towel around his neck and wrapped his whole head with plastic wrap and set the timer for 3 hours (double the time I needed).At the end of the 3 hours, his hair was amazing.So, please don't discredit these non-toxic products if your first try didn't work like you had hoped. Sometimes, you have to do some trial and error colorings till you are pleased with the results.Additional benefits that we have discovered when using these products are:- the hair fall-out has decreased significantly. We used to have a huge ball of hair on the shower floor drain after each hair washing. That has now decreased to just a few hairs after each washing.- another change is that we no longer use conditioner after shampooing. Our hair is soft and fluffy and easily managed. A little hair spray keeps it in place all day long.- the color also seems to last much longer than the store bought colors we previously used. I always did my husband's colorings and had to ensure that I made time every two weeks to color his hair. Now, I do his coloring's once a month or so.- the price for each coloring has also significantly decreased, leaving me more shopping money.