How to choose professional hair colour: a practical guide

Professional hair colour offers much more choice than a number on a box. For a predictable result, assess the starting colour, previous colouring, amount of grey, hair condition and whether you want to darken, tone or lighten. This guide explains where to start and how to narrow the choice.

1. Identify the starting hair base

The same shade can look completely different on light and dark hair. Assess the natural depth, visible warm or cool direction and whether hair has been coloured before. Previously coloured hair does not always lighten just by applying a lighter colour, so major changes may require a different service.

2. Understand the shade number

In professional colour systems, the first number usually indicates depth, while numbers after the slash or dot indicate tone direction. Manufacturers' numbering can differ, so check the specific range's palette and instructions before mixing.

Find the full professional hair colour range in the category Professional hair colour. Compare shades from ESTEL, BBCOS, ELEA ARTISTO, KEEN and other ranges there.

3. Developer is not a random choice

Developer concentration depends on the colour system and desired result. Lower strengths are often used for toning or gentler colouring, and higher strengths for more lift. However, there is no universal rule for all ranges: always follow the specific manufacturer's instructions for proportions, strength and processing time.

4. What should I choose for grey hair?

With more grey hair, coverage matters as well as the desired shade. A natural base is often used alone or combined with a fashion shade for a more even result. For a high percentage of grey, choose systems explicitly intended for grey coverage.

Find a convenient selection on the page Hair colour for grey hair.

5. Remember after-colour care

After colouring, hair often needs gentler cleansing, moisture and products that help maintain smoothness and the colour's appearance. Choose shampoo, conditioner and mask according to actual hair condition, not just colour.

Frequently asked questions

Can professional hair colour be used at home?

Yes, if you follow the manufacturer's instructions precisely and do not change the proportions. Complex lightening, colour correction or severely damaged hair is safer in professional hands.

Will a lighter colour lighten previously coloured hair?

Not always. Artificial pigment may require special colour removal or lightening, so a lighter colour number does not guarantee a lighter result.

How do I choose between ESTEL, BBCOS, ELEA ARTISTO and KEEN?

Choose according to the palette, specific range's purpose, desired coverage and application protocol. Start with the shade you want, then compare the relevant professional systems.