The Revolutionary Colouring System
Leyton House Professional

LH 1.5% Developer


UNIVERSAL 1.5% - 5 VOL DEVELOPER
5VOL • MAXIMUM DEPOSIT • MIXED 1:2

  • Formulated for Couture Silk Demi Permanent and Permanent
  • Colour contains an alkali (ammonia or MEA), this determines if lift will occur
  • Ideal for toning highly porous hair – preventing further cuticle damage
  • Ideal for toning hair where no base breaking (lift) is wanted (especially fine hair)
  • Fine hair texture contains less cuticle and therefore easier to lighten
  • 1.5% = Less oxygen = less colour pigments to the hair
  • Longer lasting colour results
  • Test stranding is recommended


** Breaking the base, or a base break, is a professional hair colour technique used to blend the natural hair that is not highlighted in-between foils. It is used to break-up the darker roots that were not lightened, which helps remove any line of demarcation in your hair colour.


Only use Leyton House Developers with Couture Silk colour to ensure a highly stable and pH balanced colouring system and maximum coverage and colour durability.

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