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Author Topic: Permanent colour over bleached hair - is it remotely safe?  (Read 3833 times)  Share 

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  • Junior Hair Addict
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I've tried finding the answer to this question elsewhere but have had no luck.

I bleached and dyed my hair blue two weeks ago and have the very attractive effect of visible root, visible bleach from where the blue's washed out of them and fading colour.

I'm planning on going over that with a blue-black on top and then doing the underneath a wacky colour, but don't know whether it'd be safe to place the permanent dye (Which has hydrogen peroxide) over my current hair or not and haven't yet braved a trial strand or skin test.

If it isn't too dangerous, should I strip my hair or leave it as is before going over it?


*BTW, can't remember if Lush's Marilyn hair treatment was suggested to help fade colour on here... but it works a treat! If it has been, then thank you whoever mentioned it!
 

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You can use a permanent over bleached hair (I have put black over bleached red hair before), but you need to leave it at least a month since you last bleached it, and be prepared that the colour will fade down within a month--if you want the black to stay, then you will need to redo it again a month later.

Also, make sure your hair is in a good condition before you put a permanent colour over it.  You're going to be reprocessing the lengths, which is fine if they're in good knick, but if they're dry/broken/split ends, it's better to not subject them to any more processing, because they might melt or snap off.
 

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Hmmm... A couple of weeks yet before it's safe, then. In the meantime,I'm tempted to just plonk on a gone-in-3-washes colour just to try and make it look less manky.

I know red on top is a bad idea from reading on here, but are there any colours you'd recommend in the meantime if I go down that route?

Cheers for the help, BTW - very much appreciated!
 

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You will get a better, more long lasting result with a demi-permanent (28 wash)rather than a permanent as you don't need the lift a permanent dye gives. I would also go over the blue some orangey red to neutralise and fill before adding the black, this will help to prevent a muddy green fade.
If you can post a pic of your current colour and what you are ultimately aiming for it will be easier to advise.
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This is from a couple of days back, two weeks and at least 20 washes after initially dyeing (My hair gets greasy very easily so I'm currently in a cycle of wash, condition, leave for 1-2 days then have to wash and condition again). You can't tell I'm a noob, can you? XP

The latter two are probably the closest representation of what I'm talking about, but I've tried including photos from front, side and back. [May have to delete the bits after .jpg, but we shall see]

https://scontent-lhr.xx.fbcdn.net/hphotos-xap1/v/t1.0-9/11258153_10155591983595093_2427257026248540431_n.jpg?oh=a8ef92b3c2d8df522aecd9abf308c625&oe=560BB157

http://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xaf1/v/t1.0-9/11258153_10155591983600093_2832510539936280121_n.jpg?oh=c91024e5a08cd18f5d18333a2e311979&oe=55D572AF&__gda__=1439396635_fca747785af930daf9fdb0dc09749e89 (No idea how it's come out such a nice blue colour... I don't remember putting Flash on and haven't used any filters as far as I'm aware)

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xpa1/v/t1.0-9/11258153_10155591983605093_1388615359593703240_n.jpg?oh=db24ef7e3eefa02c36c52883e39b083d&oe=55C928C1&__gda__=1440160727_077a0d4d9b149a3bbcca65f13df33773

http://scontent-lhr.xx.fbcdn.net/hphotos-xap1/v/t1.0-9/11258153_10155591983615093_5553326119746313893_n.jpg?oh=d7ad3d77c66efc2aee91b8f7aa5c668b&oe=5609F124

https://scontent-lhr.xx.fbcdn.net/hphotos-xap1/v/t1.0-9/11258153_10155591983620093_418841416440304945_n.jpg?oh=1db9efe4b5d31106fb021178f8265264&oe=55DDDCC9

I shampoo then condition normally (but should probably try reversing that?).

Shampoo: Head & Shoulders itchy scalp (w/eucalyptus); Lush I Love Juicy; Lush Rehab
Conditioner: "Garnier Ultimate Blends" Silky Smoother or "" Nourishing Repairer
 

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You could try the Adore blue-black, it's a semi-permanent so wouldn't cause any damage.


By the way, I take it you're in deliberately-fading mode, hence the H&S and Lush shampoos?
 

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So your goal is some parts black and other parts a bright (unspecified) colour?
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So your goal is some parts black and other parts a bright (unspecified) colour?


Yep! Either that or something like my natural colour [https://scontent-lhr.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/14078_10155436219185093_8303733066839436007_n.jpg?oh=82cd86bfdd97607a7dfef01090de06f3&oe=55D06489] and the rest a currently unspeficied wacky colour.

When I say "underneath", I mean this and if not that, then something like (whisper it) Seth Rollins

You could try the Adore blue-black, it's a semi-permanent so wouldn't cause any damage.

By the way, I take it you're in deliberately-fading mode, hence the H&S and Lush shampoos?
Yes, I am. I do have some stripper too, but not sure I should use that yet tbh. I used the H & S anyway before I bleached, though.

By blue-black, the closest thing I've found so far is Royal Navy - is that the colour you mean?

And a lesson learnt that if I want to go blue again, I should choose Adore Baby Blue instead due to its undertones!
 

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You could try the Adore blue-black, it's a semi-permanent so wouldn't cause any damage.

By the way, I take it you're in deliberately-fading mode, hence the H&S and Lush shampoos?
Yes, I am. I do have some stripper too, but not sure I should use that yet tbh. I used the H & S anyway before I bleached, though.

By blue-black, the closest thing I've found so far is Royal Navy - is that the colour you mean?

And a lesson learnt that if I want to go blue again, I should choose Adore Baby Blue instead due to its undertones!


Nope, I mean Adore Blue Black  :)

If you dye your under-layer, remember to wash your hair with your head upside-down to avoid the darker colour running onto your bright colour.
 

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I think blue black over green would come out quite blue rather than a natural colour.
You will need to neutralise the green tones with the opposite colour first, (which will be an orangey red)if you want a natural shade of black/dark brown.
I think a dark navy with baby blue would look stunning though.
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Re: Permanent colour over bleached hair - is it remotely safe?
« Reply #10 on: 31 May 15 / 11:39 PM »
Thanks, guys!

The blue is now all but faded (It's VERY light and only in a couple of small bits in the underlayers by my ears, which is only visible when I tie it up). I THINK I'm currently about a 8 or 9, judging by the tone charts I've seen.

Would you still advise I put a base colour on so either the blue-black or a chestnut-mahogany mix comes out looking OK? If so, am I right in thinking that the base tone would be orange-based for the blue black and an ash-type colour (read: green-based) of some kind for the latter?
 

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Re: Permanent colour over bleached hair - is it remotely safe?
« Reply #11 on: 01 Jun 15 / 12:22 AM »
So your hair is now blonde, and you want to go either black or mahogany? If you want black you will still need to fill first, but the mahogany can go straight over blonde as it is red based. You may need to do a couple of coats to get full coverage. (I am assuming it is a direct dye, not an oxidative one)
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Re: Permanent colour over bleached hair - is it remotely safe?
« Reply #12 on: 01 Jun 15 / 01:19 AM »
So your hair is now blonde, and you want to go either black or mahogany? If you want black you will still need to fill first, but the mahogany can go straight over blonde as it is red based. You may need to do a couple of coats to get full coverage. (I am assuming it is a direct dye, not an oxidative one)

The mahogany and chestnut ones are those washes-out-in-three-washes ones.... if that helps? Would I still need to fill with a washes-out-in-three in a black or dark brown?
 

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Re: Permanent colour over bleached hair - is it remotely safe?
« Reply #13 on: 01 Jun 15 / 02:02 AM »
Well obviously you don't have to, but you won't get a black over a blonde base, it will be whatever the base colour in the dye is. The mahogany is likely to go strawberry blonde or gingery, so try a strand test to make sure it will be a colour you like.
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Re: Permanent colour over bleached hair - is it remotely safe?
« Reply #14 on: 03 Jun 15 / 12:36 AM »
Huh... Got a nice peachy tone for my trouble. Bah. (I did the top "natural" and the underneath blonde)

Products used: Superdrug own-brand in True Chestnut and Mahogany
 

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Re: Permanent colour over bleached hair - is it remotely safe?
« Reply #15 on: 03 Jun 15 / 12:41 AM »
Well obviously you don't have to, but you won't get a black over a blonde base, it will be whatever the base colour in the dye is. The mahogany is likely to go strawberry blonde or gingery, so try a strand test to make sure it will be a colour you like.

If only I'd seen this earlier! XD
 

 

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