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K89 4D Hair Colour Developer 1.5%, 1000 ml
4451
1-4
Pro only
Helps refresh the shade and provide tone-on-tone colouring when used with a suitable colour. Castor oil helps nourish and soften hair and protect the hair fibre during colouring.
K89 4D developer 1.5% is designed for toning and tone-on-tone colouring. It is used with colour to create a mixture suited to the specific colouring service.
Castor oil helps soften and nourish hair and protect the fibre during colouring. Its 1.5% strength is a key factor when choosing this developer, as the concentration determines suitability for toning, grey coverage or lightening.
Hair colour developer and its uses
- 1.5% strength for toning and tone-on-tone colouring.
- Castor oil helps maintain softness during colouring.
- Mix with the chosen K89 colour at the ratio specified in the colour instructions.
- 1000 ml pack for measuring out individual mixtures.
How to use
Mix with the chosen K89 hair colour at the ratio specified in its technical instructions. Select the developer strength and processing time to suit the colour range, shade and colouring service.
Technical information
- Brand: K89
- Range: 4D Essential
- Product type: Oxidising emulsion
- Strength: 1,5%
- Active conditioning ingredient: Castor oil
- Pack size: 1000 ml
Product story
The 4D developer range is organised by colouring service. The low-strength option is designed for toning; the three per cent developer is for deepening and evening out tone; and the six and nine per cent options are for grey coverage and lightening. The twelve per cent strength is intended for high-lift colours.
Castor oil is a conditioning ingredient that helps soften and nourish hair during chemical processing. It complements the developer's technical role with hair fibre protection. Colour and developer are used together, with their ratio determined by the colouring method and the instructions for the specific colour.
The shade chart specifies a one-to-one ratio for standard colouring and one-to-two for high-lift colours. Processing times also differ between these services. Developer strength, mixing ratio and processing time are therefore selected as related parameters, taking account of the starting shade and the intended result.
Related K89 products
- K89 4D Color Experts — the permanent colour range for preparing colour mixtures.
- K89 4D Porosity Equalizer — for preparing hair before colouring.
- K89 pH Acid Shampoo — for cleansing after colouring or bleaching and restoring pH balance.
- K89 Sealing Mask — a post-treatment mask with argan oil and Plex technology. Apply to clean, damp hair, leave for 10 minutes and rinse thoroughly.
Frequently asked questions
What is this strength designed for?
1.5% developer is designed for toning and tone-on-tone colouring.
Can the developer be used without colour?
It is designed to be mixed with colour, following the instructions for the specific colouring system.
Is the same ratio used for every colour?
No. Standard 4D colouring uses a 1:1 ratio, while high-lift shades use 1:2. Follow the technical instructions for the chosen service.
- Volume
- 851- and more ml
- Usage
- For coloring and perms
For professionals - Collections
- 4D
- Product type
- Emulsions
About K89
K89 is a Spanish professional haircare brand founded in 2010 and part of the Vitafrán group. It began by responding to demand for specialist keratin treatments and care for damaged hair. The K in its name refers to keratin, while 89 marks the start of the Vitafrán family business in 1989.
Hairdressers and salon work are central to the brand. Its portfolio combines technical colouring and treatment products with everyday care and finishing products. Professional training supports the range, helping hairdressers choose an approach suited to the condition of the hair.
What is K89 known for?
K89 focuses on damaged hair, hydration, smoothness and frizz control. Different ranges address intensive care, curl definition, shine and colouring. This makes it possible to select products around a specific concern and hair type rather than build every routine around the same formula.
K89 products
Shampoos, conditioners and masks
Shampoos, conditioners and hair masks form the basis of regular care. Consider dryness, the extent of damage, hair texture and the desired finish when choosing a product. Follow cleansing with a suitable rinse-out or leave-in treatment.
Intensive Care
Intensive Care brings together treatments and maintenance care. The brand describes Wizard System as an intensive hair-fibre treatment with collagen, amino acids and vitamin E. The range also includes a preparatory shampoo, finishing serum, maintenance shampoos and a mask designed to complement the treatments.
Professional Curly Hair
Professional Curly Hair is designed for wavy and curly hair, following the principles of the Curly Method. Its priorities are hydration, defined and elastic curls, and reduced frizz. K89 emphasises the role of a hairdresser in selecting products and routines for the individual hair type.
Global Glow and hair colour
Global Glow targets shine, hydration and frizz control, with cotton, rosehip and argan extracts highlighted in its formulas. Permanent hair colour is another part of the professional portfolio. K89 describes 4D COLOR EXPERTS through four aspects: depth, shine, coverage and care.
Who are K89 products for?
K89 suits hairdressers and customers seeking targeted care for dry, damaged, coloured or curly hair. For home care, choose a product intended for your hair’s condition. Technical colour and salon treatment products should be used according to their professional protocols. Compare individual descriptions to build a routine around your needs.
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