The curl formation system utilizing heat Two kinds of Keratin PPT and Heat Active PPT react to repair the interior of hair and increase curl holding strength.

Ionic bonding with positively-ionized conditioning ingredients forms a strong protective membrane
Maintains comfort levels until the next operation, taking into consideration everyday damage after curling. The negatively-ionized conditioning ingredients in SC-2 ionically bond with the positively-ionized conditioning ingredients in Repairment to form a stronger protective coating.

※"Repairment" is a registered trademark of NAKANO Seiyaku Co.,Ltd.

"Radicals" come about after exposure to ultra-violet rays and are known to be a cause of hair damage.

Keratin PPT, vital for curl holding strength, undergoes a thermo-chaining reaction with Heat Active PPT which improves curl holding strength.

Through organic germanium contained in the first liquid and orange oil contained in SC-2, the smell left over after treatment is greatly reduced. Also, unpleasant smells during treatment are reduced through perfume components mixed in co-operation with a perfume manufacturer.

Thioglycolic acid and cysteine sharply increase curl formation strength for damaged hair, whereas cysteamine and thioglycerine are comparatively mild. With Spiera in particular, even curls can be obtained irrespective of the level of damage.

Thioglycolic acid, cysteine, thioglycerine and cysteamine have weak curl formation when pH is low and curl formation strength increases for high pH. On the other hand, Spiera forms curls in the region from acidic to neutral pH levels, with little change in curl formation strength due to pH.※"Spiera" is a registered trademark of Showa Denko K.K.