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White 1L bottle with black cap and multicolour label, 12% 40 volume developer

Schwarzkopf

Schwarzkopf Igora Royal Oil Developer 12% 40 Volume 33.81oz 1L hair care

SKU CH-GR7V-J76Q8

Oil-based developer at 12% strength lifts colour up to four levels in a one-litre bottle

  • TypeHair Color
  • For Treatment OfNormal Hair
  • ColorMulti-Color
  • GenderAdult
  • AgeAdult
  • EcologicalHomeopathic
  • Lifts colour up to 3-4 levels with 12% 40 volume strength
  • Oil-based formula conditions hair during the lightening process
  • Large 33.81oz 1L bottle covers multiple salon applications
  • Suitable for normal hair types seeking significant lift
  • Professional developer designed for use with Igora Royal colour system

Schwarzkopf Igora Royal Oil Developer 12% 40 Volume

This developer is formulated for professional hair colouring services requiring up to three to four levels of lift. It is intended for colourists and experienced home users working with permanent colour on natural or previously treated hair. The oil-based formula supports even processing during the development stage.

Sustained processing with 12% peroxide concentration

At 12% peroxide the mixture maintains consistent lifting power throughout the full development time rather than fading after an initial burst. The oil carrier helps the cream stay workable on the hair shaft, allowing the alkalinity and peroxide to continue acting evenly from roots to ends. This steadiness reduces the risk of patchy results on longer applications.

Practical limits of 40 volume peroxide

The 40 volume strength is the highest standard peroxide level offered in this range and is not suitable for subtle tone-on-tone work, pastel shades or previously bleached hair where 10 volume would be chosen. It cannot lift beyond the three to four levels stated, so hair that needs more dramatic lightening must be pre-lightened separately. Over-processing becomes likely if the mixture is left on past the manufacturer's recommended time.

Highlights

  • Lifts colour up to 3-4 levels with 12% 40 volume strength
  • Oil-based formula conditions hair during the lightening process
  • Large 33.81oz 1L bottle covers multiple salon applications
  • Suitable for normal hair types seeking significant lift
  • Professional developer designed for use with Igora Royal colour system

Specifications

BrandDial
TypeHair Color
For Treatment OfNormal Hair
ColorMulti-Color
GenderAdult
AgeAdult
EcologicalHomeopathic

Questions about this item

Will the 12% developer feel harsh or generate heat during a full processing time?

The 12% / 40 Volume formula is designed for up to 3-4 levels of lift; heat sensation varies by scalp sensitivity and processing duration.

Do I need Igora Royal colour tubes to use this 1 L developer?

Yes, the developer is formulated to mix with Schwarzkopf Igora Royal colour shades for consistent results.

Can I use the 40 Volume developer on previously coloured hair that still has old dye?

12% / 40 Volume lifts up to 3-4 levels; on previously coloured hair it may lighten unevenly, so a strand test is recommended.

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