DIY: How To Get Platinum Blonde Hair

I don’t think I’ve ever met a girl who did not wish – at one point in her life – to have her own head of dreamy, platinum blonde hair.

Getting it done professionally is your best bet when you want to achieve this color, especially when you have little to no idea how to mix bleach in the first place, or if you don’t feel up to the task after reading the horror stories that go around about girls losing their hair during their attempt.

Let me disclaim right away that I am not a hairdresser, but let me also say that I have successfully achieved this color at home.  I often receive compliments on my hair and decided to share how to do it yourself.


First off, know that blonde hair requires A LOT of maintenance – i’m not kidding. I wouldn’t suggest going through this journey if:

  • You already have porous, breaking, or weak hair;
  • Are not ready to have brassy hair for a week – this color is not achieved in one session! Let me make this clear.
  • Are not ready to spend 2 hours ever 4-6 weeks simply to redo your roots;
  • Do not have a helper to assist you (ever tried doing your roots at the back of your head without missing a spot?);
  • Are not ready or financially able to invest in hair masks and hair strengthening treatments;
  • Can’t live a day without using hot tools;
  • Can’t afford to have regular trims to cut off the brittle ends.

Bleaching your hair WILL make it weaker, and without the proper care, it can result in hair loss, breakage, or your head looking like a stiff broomstick.

What you will need:

  1. Professional Bleach Powder (I recommend L’Oreal Quick Blue bleach. Save money by buying the 16oz tub, and you don’t risk not having enough – that would suck)
  2. 30% Cream Developer (I personally like to stay away from the 40%, as it is very damaging. However, if you would like a quicker result because you have dyed, brown or darker hair, I would only suggest you use it for you FIRST application only, and to follow up treatments with the 30%. You can use any brand, I use the Ion Color Brilliance Sensitive Scalp one.)
  3. 10% Cream Developer (To mix with your toner. I again use Ion Color Brilliance Sensitive Scalp)
  4. Ash Blonde Toner (Might want to get a couple of these. To start off and get your hair as platinum as possible I recommend Wella T18 or Wella T14. Once your hair has reached it’s platinum shade you can experiment with different toners and shades that call to you.)
  5. Gloves, mixing bowl, and two tint brushes (one for you, one for your helper!)
  6. Hair treatments. (I have a shower one, a leave in one, and occasionally do hair masks/oil treatments. Find some here. Note that unless you are using a light argan oil made for blondes, regular argan oil may make your hair brassy so although they work magnificent, try and stay away from them)
  7. Blue/Purple Shampoo. (This helps keep the brass away! I like Clairol Professional Shimmer Lights Shampoo)
  8. A good conditioner. (It makes a world of difference. If you can’t afford high grades ones like Sebastian, your best drugstore bet would be Dove.)


  1. Separate your hair in three layers – bottom, middle, top.
  2. Put your gloves on. Pour bleach powder in your mixing bowl, and gradually add your developer. Your final mix should be clump-free and ressemble pancake batter when at the ideal consistency.
  3. Take a thin section of hair. Using your tint brush, cover your hair from the root to the tip, on both sides, with a thick layer of bleach. Don’t be shy! Make sure it’s all covered and move on to the next section. I usually do the sides of my head while the helper does the back and behind my ears. Make sure you get all the hairs on your neckline as well.
  4. When done one section, move on to the other, and then to the top of your head. I like to start at the front and make my way back, that way the hairs that are framing your face don’t risk to be under-processed as much as the last strands you do.***TRY TO DO THIS WHOLE PROCESS AS FAST AS YOU CAN TO AVOID OVER-PROCESSING YOUR HAIR.***
  5. Cover your head with a plastic bag, or make a cap with aluminum foil if you feel up to it.  If you used a 30% developer, leave in for 45 minutes. If you used a 40%, I personally would not recommend going longer than 35 minutes. Start timing the minute you finish applying your bleach, and make sure you do not exceed the recommended times.
  6. Rinse your hair, shampoo it, condition it.
  7. Don’t panic, don’t panic…but you can’t help it, since your hair will be a BRASSY-YELLOW / ORANGE! Gorgeous girl, just don’t hate me yet; the toner will help a lot, but you will most-likely have brassy hair for another week until your next application. No pain no gain! Now to our life-saver. Mix the toner according to the directions on the box. For Wella, it is 2 parts developer for 1 part toner. Mix your 10% developer with your toner and apply to your towel-dried hair.  Massage it in, and make sure you get all your hair soaked in it. Leave for 20 mins, or according to directions on box.  Although most toners say to use a 20%, a toner is made to deposit only on your hair. My hairdresser told me to disregard the instructions and to use a 10%, and the results are much better with less damage.
  8. Hop in the shower, and wash with your blue shampoo. For best results, leave in for 3-5 mins. Use your hair treatment, and then condition as usual.

Keep using your blue shampoo, and mid-week use another hair treatment.

7 days after, repeat the steps 1-9. If you have used 40% dev. the first time, I strongly suggest to use 30% from now on.

Your hair should be quite blonde by now!  I would suggest leaving it alone for a month or longer if you can. Keep using your blue shampoo 1-2 times a week, and your shower treatment weekly. If you have a leave-in conditioner, use it! Try to stay away from hairspray and hot tools as much as you can!!

After that month, redo the steps for the third time, and your hair should finally be platinum! From now on, only do your roots. Your hair endured enough damage :)

Enjoy, and comment your results if you have any questions. Don’t forget to treat yourself with a bombshell new haircut (and to cut off all those damaged ends)! Enjoy being a blonde, it’s going to be a wonderful time ;)


25 thoughts on “DIY: How To Get Platinum Blonde Hair

    • Agreed! Makes for a love-hate relationship with your hair!
      P.s: I adored your blog post about swimsuit season! Cracked me up, and you’re so right – who CAN resist a hot, delicious cinnamon roll? Haha

      • thank you so much! My friend lost a pound the other day and I humored her by sharing I bought 1 pound of lindt truffles.. hahaha swim suit season BEWARE!

  1. Oh no, sorry to correct you but you wrote “For wella, it’s two parts bleach to one part toner” I think you meant developer, so I’m letting you know because that could be bad if someone mixed bleach and toner. Great job other than that. Sorry to edit your writing!

  2. Hi, I loved your post. But I was wandering if there is a way I can do this process, quicker. I know it would obviously damage my hair more, but is it possible?

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