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K89 4D Porosity Equalizer, 250 ml
44191
1-4
Pro only
Time left
Helps hair with varying porosity absorb colouring products more evenly. Lactic acid regulates pH, softens the cuticle and enhances shine, while hydrogenated castor oil forms a protective film on the hair fibre and improves its texture.
K89 4D Porosity Equalizer evens out hair porosity before colouring and other technical services, helping hair absorb subsequent products more evenly. It also helps prepare damaged and uneven areas of the hair fibre.
Lactic acid helps regulate pH and soften the cuticle, while hydrogenated castor oil forms a protective film on the fibre. The product can be sprayed onto dry or damp hair before the service.
Hair porosity equalizer before colouring
- More even absorption of technical products in hair with varying porosity.
- Lactic acid regulates pH and helps enhance shine.
- Hydrogenated castor oil improves the texture of the hair surface.
- Can be sprayed onto dry or damp hair.
How to use
Spray onto dry or damp hair before colouring or another technical service.
Technical information
- Brand: K89
- Range: 4D Essential
- Product type: Spray-on hair porosity equalizer
- Ingredients: Lactic acid, hydrogenated castor oil
- Form: Spray-on product
- Pack size: 250 ml
- Application: On dry or damp hair before a technical service
Product story
Equalising porosity is a preparation step before colouring and other technical services. Damaged areas of the hair fibre and an uneven surface affect product absorption, so Porosity Equalizer is designed to prepare hair more evenly throughout the area being treated. It is sprayed on before the next technical service.
Lactic acid helps regulate pH, soften the cuticle and enhance shine. Hydrogenated castor oil forms a protective film on the hair fibre, helping improve the surface texture. Together, these ingredients help prepare hair for the colour or other technical product used in the next stage.
The spray can be used on dry or damp hair. Its role differs from post-treatment care: an acidic-pH shampoo is used after colouring or bleaching, whereas a porosity equalizer works beforehand. This sequence allows each product to address a specific stage of hair processing.
Related K89 products
- K89 4D Color Experts — for the colouring service after hair preparation.
- K89 Scalp Protector — a separate product for preparing the scalp before colouring or bleaching.
- 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
Should I use it before or after colour?
Before colouring or another technical service.
Does the hair need to be dampened first?
No. The product can be used on dry or damp hair.
What does lactic acid do?
It helps regulate pH, soften the cuticle and enhance hair shine.
- Volume
- 151-400ml
- Properties
- For shine
Hair protection - Hair type/condition
- For damaged hair
- Usage
- For coloring and perms
For professionals - Collections
- 4D
- Product type
- Sprays
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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