I consider this the best bleach in terms of performance and quality compared to all others on the market. It lifts level 2 hair to level 9 – almost 9.5 – in 1 hour and 20 minutes with 20 volume developer. You just need to be careful and use a trick that is not mentioned on the packaging…

I admit I am not a professional in the field, but I have been using bleach at home very frequently for years, and the process I will describe is the most practical – I believe – for you to do at home successfully, aiming for a level 9.5 result.

Of course, when you do this process at home and without help, just to apply the bleach all over your hair, it will take you about forty minutes or more. So, it would be practical to do the bleaching at home in two rounds: that is, half the head from eye level down as the first round, and the second from the eyebrows up – in other words, divide your hair in half in any way and bleach it half and half.

For users with normal or thick hair, it can be applied to the lengths without foil (personally, I think foils are better used for fine hair, so the lightening is faster and the risk of damage is reduced). Of course, if you want a more successful bleach, use foils so the hair’s temperature stays stable and the bleach works more effectively, without patchy spots. Also, the more foils you use with smaller sections, the better.

So, first of all, be in a room at room temperature (the colder the room, the harder it will be for the hair to lighten). Mix the bleach powder 1:1 with 20% developer and apply to the lengths and ends first. Leave for 20 minutes and then apply bleach to the roots. At this stage, wait another thirty minutes (during these 50 total minutes, check the hair quality by gently pulling from the end – if during this time the hair becomes more elastic, rinse out the bleach). Usually, at this point, if your hair is level 2 or 3, it will lift to an orange–orange-yellow level 7.5–8.

AFTER the fifty minutes have passed and the hair remains HEALTHY, we move to the “trick” stage I mentioned earlier, which is the second application. With the tips of your fingers, remove the already processed bleach from the lengths and ends and apply a fresh layer of bleach for another half hour, to reach the desired soft yellow-white. We do this because the previously applied bleach cannot lighten further.

It is best NOT to apply the second layer of bleach if the hair becomes elastic and ideally wait 3–4 weeks to do it again.

After the additional thirty minutes, ALWAYS rinse with lukewarm to cold water and DO NOT brush your hair. If the shade you want is platinum or cool white, use silver shampoo as follows: put three ounces of silver shampoo in a cup, fill it to the top with lukewarm water, and mix until the water turns dark purple. Then, pour this mixture over all the lengths of your damp hair and leave it for about 7 minutes WITHOUT rubbing your hair. Then rinse and proceed with the dyeing process (I recommend using ammonia-free dyes). If the blonde you want to achieve is warmer, you do not follow the silver process and proceed directly to the dye.

I believe it is preferable for the dye to be applied to damp hair with an ammonia-free dye (such as Wella's Color Touch or Redken's Shades EQ). This way, you will avoid pain on the scalp and there will be no further damage to the hair.

Now, if you use the classic ammonia dye or supermarket dye, I suggest you let your hair dry for a day and dye it the next day, as your scalp will be irritated from the bleach and the dye will bother you quite a bit if you do it the same day.

That's all! I hope I helped and good luck!