How-To: Extreme Lightening Transformations

Written by L'Oréal Professionnel TeamJul 8, 2021

Read time 5 min


L’Oréal Professionnel Paris presents Run Le Hair Show the international hair show by pros for pros and all hair lovers. In this technical class from the series, hair designer Charlie Le Mindu (@charlielemindu) shares his step-by-step technique for extreme lightening transformations. He takes his model’s base 4 color and shows how he lifts it to a level 10 while respecting the integrity, texture and shine of the hair with L’Oréal Professionnel's new Metal Detox line.

Products Used

Formula (Roots) 
½ DIA Light 8 
½ DIA Light 10,32 
+6 Vol Oxidant  

Formula (Length) 
½ DIA Light 10.21 
½ DIA Light 10,22 
+6 Vol Oxidant 


  • Separate hair into four sections: two in the front and two in the back.  
  • Apply cotton to neck. 
  • Apply Blond Studio 9 to the back of the head near the neck.  
  • Continue to apply to each section 2 cm from roots. 
  • After each application spray section with L’Oréal Professionnel Metal Detox Pre-Treatment. 
  • Use cotton in between each section to allow hair to breathe. 
  • Repeat the process up to the top of the head and spray with L’Oréal Professionnel Metal Detox Pre-Treatment. Spray once or twice depending on the thickness and length of hair.  
  • After a maximum development time of 45 minutes, take out all the cotton and start rinsing at the neck. 
  • Gently rinse for 3 to 5 minutes until the water is clear. 
  • Blow dry hair giving it as much volume as possible. 
  • Isolate the front sections and apply Blond Studio 9 +20 volume oxidant. Work from the crown to the neck. Spray L’Oréal Professionnel Metal Detox Pre-Treatment on roots. 
  • Apply 2 to 4 pumps of Metal Detox Shampoo. Rinse thoroughly.  
  • Apply ½ DIA Light 8 plus ½ DIA Light 10,32 and 6 Vol Oxidant to roots. 
  • Apply ½ DIA Light 10,21 plus ½ DIA Light 10,22 and 6 Vol Oxidant to length. 
  • Apply Metal Detox Mask and rinse. 
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