The answer is, it depends. And are you sure you really want to?
I discovered henna for hair when I lived in San Francisco. If you read my earlier blog entries, you’ll discover my love affair firsthand.
This is the color and state of my hair before I went the henna route. It’s mostly my natural color; I intermittently got a highlight here or there, but they mostly all faded and grew out and got bleached by the sun. It’s pretty dry, especially at the ends.

My mostly natural hair color before henna
And this is what my hair looked like after doing henna on it for two years (full-head applications each time — so the ends have probably been treated with henna a dozen or more times). I didn’t maintain that length the whole time, by the way; it was collarbone length for a while. Nice and shiny, eh?

This is the result of two years of consistent, full-head henna coloration over blonde hair.
Now don’t get me wrong, I was in love with my henna head. I loved the color, the conditioning, taking time to do something nice for myself every six weeks or so.
But moving back from San Francisco to Reno, I was in for a surprise. In the Bay Area, henna made my hair silky soft and shiny. In Reno, time and time again, it would dry out my hair for days afterwards. Olga, a HennaTribe friend from Germany, has said multiple times that henna gave her hair the texture of straw. I had no idea what she was talking about until I started hennaing my hair here in the Nevada high desert.
I modified my mix, but to no avail. My hair was inconsolable.
The only theory I could come up with was humidity. What if henna absorbs moisture? In San Francisco, it would absorb it from the air and transfer it to my hair. In Reno, though, the air is bone dry. Perhaps the henna drew moisture from my hair and transferred it to the air? Or, perhaps the henna residue that coats your hair for a few days post-coloring wasn’t able to remain very supple without that ambient moisture to support it. I should note here that my hair softened up after a few days, and it was still incredibly shiny. But that first week or so, I was not liking it at all.
Anyway, henna wasn’t doing my hair any favors here in the desert, so I decided to make an experiment out of it and see if I could get it bleached back to blonde.
Very important note: If you don’t know exactly what is in your henna for hair paste, DO NOT BLEACH OVER HENNA. Lower quality or mass-produced henna sold for hair often contains metallic salts. Metallic salts plus bleach will melt your hair. You will leave the salon bald. My stylist described it like using a hot curling iron on a synthetic wig. Not pretty.
Anyway, I’m not good with chemicals at home, so I went to my stylist to see if she could help me out. She was extremely reluctant to try it because she didn’t want to melt my hair. I told her that I would take all responsibility for any negative results, so ahead we forged. I always bought my henna from Darcy at the Henna Lounge, using body-art quality henna for my hair, so I knew I didn’t have to worry about additives.
It took us three major bleach applications in a row to get the henna out. This was not a very pleasant experience, because I have a pretty sensitive scalp. I left the salon with chemical blistering on my scalp and hairline (ouch!). Also, if you’ve ever used bleach on your hair, you probably have an idea of what it did to the texture of my hair. My notes from that day:
So it is possible to bleach years and years of henna back to blonde. However, I wouldn’t recommend it. The morning I took this photo I was crying because of how much my hair was breaking.
However, I’m fixing that with hardcore deep reconstructing and conditioning treatments!
Long story short, here’s the result of bleaching out my henna:

After the henna was bleached out
It was damaged enough that I ended up cutting it, but lots of deep conditioning treatments helped while I let the damaged parts grow out.
It’s been about two years now since I bleached out my henna, and I’m just now growing my hair back out. I missed the color a lot, though, so I recently went to an Aveda salon and got demi-permanent red. Leaving the salon, I looked in a mirror and got so incredibly nostalgic! The Aveda red is like a naturally toned-down shade of henna red, and the Aveda products did make my hair noticeably softer. I’ll have to post a photo for comparison’s sake soon.
Thus ends the frightening tale of a head of henna, a move to the high desert, and three industrial applications of bleach.
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Amazing color! What brand of henna did you use?
It’s henna from Darcy at http://www.hennalounge.com. Her henna is top quality and always fresh, I looooove it.
i do need to ask, what recipe did you used to use to get that shade of red or did it just darken over time? i used to use permanent dye of that similar colour till it was discontinued on me and theres so many reds you can get from what you add to henna that i dont know which will get the the result i want. my hair is also naturally blond and very light.
Hi Candice! My recipe was pretty basic. I mixed pure henna powder with chamomile tea and my favorite conditioner and let it sit for about 4 hours. I applied it like this about once a month over my whole head. I noticed that adding either coffee or essential oils like lavender or tea tree oil will make it very slightly browner, which in my case I didn’t want. The chamomile gave it a little more golden undertone. Keep in mind that henna hair color is sort of translucent — it’s like nail polish in that you get that really rich henna color after you’ve done two coats. It also darkens a bit a few days after you apply it, so expect that very first coat to be a little bit orangeish for a day or two.
Good luck, and have fun!
thank you very much!
did you go to the salon for the bleaching or did you do it yourself?
i put henna in my hair months ago and it is no where near as bright as what yours was… but i tried bleaching my hair last night and it did not turn out the way i expected.
i dont know if i should dye it again or just wait for it to grow out….
pls help
I went to the salon. Bleach is pretty finicky under good circumstances, and bleach over henna (or any red hair coloring, I’ve discovered) is pretty tricky. I also have sensitive skin and wanted to avoid frying my scalp as much as possible.
You could always go to a salon to see if they could help you out. A possible solution would be to get demi-permanent hair color while it’s growing out to even the tone. Then when the last bits of henna/bleach have grown out, you can let the demi-permanent color fade.
Hey! I love your hair! Ive been dying mine with henna about two months now and its kinda orangey and I love that deep crimson red you had, now i just use straight henna with lemon juice nothing else added, just curious as to what i should be adding to get that awesome colour.
Thanks Shawna! How long are you leaving it in before washing it out? I got that color after 2-3 treatments (each about 2-3 weeks apart) where I left it on my head for 4+ hours. If you can’t leave it on that long, it might simply take more applications.
Regarding my recipe, I didn’t use lemon. My favorite results were using henna + chamomile tea + conditioner.
You might want to make sure you’ve got good quality henna too! My favorite supplier is HennaLounge.com.
I usually have been leaving it on about 2 hours. I will definitely start leaving it on longer and try your recipe Thank you so much!
Ok another question, I read that the tea makes the dye release faster so I may not have to leave it overnight, how long after mixing it should I wait before applying?