I used the 20 volume version of this today and it is the first time ever that my scalp did not burn or itch when dying my hair. And I've been dying my hair for a LONG time. This stuff is amazing, smells lovely, not chemically like other developers you get in boxed hair dye. My hair had tons of bleached out highlights, very over-processed looking at the ends so I decided to dye it back to a dark brown. After using this my hair looks 1000 times better than it did prior to coloring it. It is soft, silky and the shine is unbelievable! I got mine from Sally's Beauty Supply.

I will NEVER use another peroxide again. This is the best. No burning, no damage done to my hair, nothing. I've been going through a process and my hair is now a medium golden blonde. I started a jet black. I pair this and mix it with Loreal Quick Blue. Then cover with the Ion color brilliance in golden blonde. Love the results. Will continue to buy. Also, the packaging is great because you can save what you dont use in the bottle for later :)

im not big on dying my hair myself but i got desperate since the stylist butchered my hair 2 days in a row and gave me orange/yellow hair with some gray! i used the 20 vol developer mixed with Clairol toner in Towhead (on the non silver pieces) and it made it to a nice, normal colored blonde, without the crazy tones! didnt burn my scalp either.

I have naturally wavy black hair and its been a long time since I've had any color in it (or lack there of). I did some research and bought this product. I wanted my black wavy hair to go blonde (highlights only). I bought the 40 vol with the Ion Powder Lightener. It was awesome. I never used a hair coloring product that was gentle on my scalp, good smelling, let alone keeping my hair soft after bleaching. But because my hair is so dark, I have to re-bleach it. It only lifted to a 6 and I need to lift it to a 8-10. At least the next time, it won't take as long to lift.

Great developer! Works well with Wella. Very cheep and smells great. Don't think I'll ever buy another.

One of the best developers I have used. I love the smell. Very creamy and gentle. Would definitely use again

I started using Ion permanent color with Pure White developer (I had some left over) and it was fine, but the Sensitive Scalp developer is wonderful - no nasty smell, very gentle and it deposits as well as the "harsher" developers (I used 20 volume). Wonderful stuff!

I've never had a developer irritate my scalp but who needs the extra harsh chemicals? I tried this and it's great, smells good too. Recommended and I've purchased over and over again.

This is the best developer I've tried. It's reliable, effective and gentle. I use the 30 vol. and it's better than any other brand I've tried. I need a 30 vol. in order to lighten my hair enough to a 9 level blonde, and this does it without brassiness, harshness or damage to my hair or scalp. I love it. Too bad the Ion color was so disappointing. I will continue to use this with my Wella Color Charm 911 gel. Together, the best color product I've used.

I have used the 10, 20 & 30 volume developers by Ion. For the 10 developer, I used 20 volume developer & distilled water in a 1:1 ratio since the large bottles are cheaper & I don't think the 10 volume comes in the large size.. The 10 volume makes the color more like a deposit only. The volume you should use depends on your natural color & the color you are trying to attain, so look at the chart in the box to select the correct volume developer. Use at least 20 volume for grey coverage. I mix a small amount of Ion cream color & 20 volume developer for my new growth/grey roots & then use 10 volume (medium dark brown hair color desired) on the rest to avoid excessive buildup. Use the lowest volume developer you can get away with for a given application to avoid excess damage & breakage. If you are not trying to get color lift/lighter colors & you do not have resistant grey hair, you could use 10 volume for many applications. BTW: I ONCE tried the Ion liquid color & hated it. It stinks to high Heaven & gave me some breakage. On the contrary, the cream colors left my hair soft, shiny & manageable. The cream colors have almost no chemical vapors compared to the liquid color. The cream colors cost more but they are a far superior product. Squeeze the desired amount of cream color out of the tube & mix with the appropriate volume developer. You can use a couple of colors to attain different colors.. Save the rest of the tube for another time if color remains. Some complain the cream color is hard to mix. I put the pointy end of the coloring brush handle in the mix & whip it up good until it is the consistency of a whipped fruit dip.. Ion colors go on darker than the color on the box by at least 1 shade, but they do fade a bit for at least a week after application. The developer smells like green apple but it is subtile, so it isn't cloying. continued >>