Reduce unwanted warmth as hair is lightened and make your desired colour easier to achieve. Persulfate-resistant colour components help neutralise warm undertones while the compatible lightening mixture continues to work.
KEUNE Ultimate Blonde Cool Booster is an additive that neutralises unwanted warmth during lightening. Its persulfate-resistant colour components work in compatible 2000, 3000 series and powder lightener formulas.
The persulfate-resistant colour components help neutralise warm undertones while lightening continues.
Add to a compatible lightening formula according to its instructions. The standard technical formula uses 1 g of Cool Booster per 10 g of total mixture.
Mix evenly and select the developer and processing time according to the lightener's instructions. Do not use the additive as a conventional standalone hair colour.
It is designed to neutralise warmth in a compatible lightening mixture, not for standalone lightening.
No. Use only with compatible persulfate formulas and their specified mixtures.
1 g of Cool Booster per 10 g of total mixture.
Aqua (Water), Propylene Glycol, Decyl Glucoside, Hydroxyethylcellulose, Phenoxyethanol, Hydroxypropyl Methylcellulose, Tetrabromophenol Blue, Ethylhexylglycerin, Ethanolamine, Acid Red 92.
Keune Haircosmetics is an independent, family-owned professional hair brand from the Netherlands. Its story began in Amsterdam in 1922, when Jan Keune and his life and business partner Cornelia began developing products for hair professionals. The professional hairdressing industry remains central to the brand's identity today.
Concept development, formulation, testing and production take place at Keune's headquarters in Soest, the Netherlands. The portfolio covers a broad range of professional hair products, from everyday care to styling and professional colour.
Keune combines more than a century of professional hairdressing heritage with in-house product development and manufacturing. Its main collections include Keune Care, Keune Style, Keune Color, So Pure and 1922 by J.M. Keune.
Keune Care provides products for different hair and scalp needs, including dry, damaged, colour-treated, lightened, curly and fine hair. Shampoos, conditioners, masks and specialist treatments can be combined as part of a tailored haircare routine.
Keune Style focuses on preparation, texture, smoothness, volume and hold. The wider category of professional hair styling products includes sprays, creams, gels, waxes, pastes and other formats for different finishes and levels of hold.
Keune Care includes shampoos, conditioners, masks and targeted treatments for different hair needs. Keune Style complements these routines with professional products developed for texture, volume, shine, control and finishing.
Keune Color is the brand's professional colouring portfolio. Customers and professionals looking for this type of product can also explore the broader category of professional permanent hair colours.
So Pure is a distinct Keune collection featuring vegan formulas and a refillable packaging system. 1922 by J.M. Keune focuses on men's grooming and includes haircare, hairstyling and beard-care products.
Keune is particularly relevant to professional hairdressers and colourists. Its broad portfolio also covers a variety of haircare and styling needs, including dry, damaged, coloured, lightened, curly, fine and difficult-to-manage hair, as well as products developed for different scalp needs.
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