Process for permanent waving keratin fibers

A process for permanently waving keratin fibers comprising:

• a—washing and towel drying fibers;
• b—applying a first aqueous composition comprising one or more reducing agents onto the fibers and leaving the first aqueous composition on the fibers for a period of 1 to 60 minutes;
• c—rinsing the first aqueous composition off the fibers;
• d—inserting the fibers into a first opening of a curler toward a second opening of the curler and rolling or winding the curler onto itself to form a roll shape, wherein the curler comprising a tubular body has a total length defined between a first end and a second end opposite with respect to the first end, wherein the first opening is disposed at the first end of the tubular body and the second opening is disposed at the second end of the tubular body, wherein the tubular body has a total width defined between a first side edge and a second side edge opposite to the first side edge, the curler further comprises a first tab and a second tab, the first tab is disposed on the first side edge at the second end of the tubular body, and the second tab is disposed on the second side edge at the second end of the tubular body;
• e—applying a non-reducing and non-oxidizing aqueous composition onto the fibers and leaving the non-reducing and non-oxidizing aqueous composition on the fibers for a period of 1 to 60 minutes, wherein the non-reducing and non-oxidizing aqueous composition comprises one or more alkalizing agents and has an alkaline pH;
• f—optionally rinsing the non-reducing and non-oxidizing aqueous composition off the fibers;
• g—applying a second aqueous composition comprising one or more oxidizing agents onto the fibers and leaving second aqueous composition on the fibers for a period of 1 to 30 minutes;
• h—rinsing off the fibers;
• and
• i—drying the fibers,
• wherein
• the curlers are taken off from the fibers after step h— and before step i.