Wella Koleston Perfect Permanent Hair Colour 6/41 Dark Blonde Red Ash 60g
Wella Koleston Perfect is a professional, permanent hair colour creme. Delivering vibrant, rich colour and up to 100% coverage of gray/white hair. Wella’s Me+ Technology reduces the risk of developing a new allergy to hair colour and Wella’s Pure Balance technology reduces the formation of free radicals, achieving irresistible hair quality. The range consists of Pure Naturals, Rich Naturals, Vibrant Reds, Deep Browns, Special Blondes & Special Mix.
- Simple 1:1 mixing ratio.
- Up to 100% grey coverage.
- Up to 5 levels of lift.
- Pure, balanced colour results with natural depth and shine.
*These colours MUST be mixed with a Developer which is sold separately.
| Product Details |
|---|
| Colour: 6/41 Dark Blonde Red Ash |
| Weight: 60g |
| Type: Permanent Hair Colour Cream |
| Application: Professional use only |
FAQ
Can this hair colour be used on previously coloured hair?
Yes, this product can be used on previously coloured hair, but results may vary depending on the existing colour and hair condition. It is recommended to perform a strand test before full application.
How long does the colour last?
The colour typically lasts up to 6 to 8 weeks, depending on hair type, washing frequency, and exposure to sunlight.
Is a developer required for this product?
Yes, a developer must be mixed with this product in a 1:1 ratio. The developer is sold separately and is essential for the colour to develop properly.

Deirdre Marshall –
The colour is rich and natural-looking with excellent gray coverage. My hair has a soft shine and feels healthy after application. I mixed it with the developer as instructed and the process was smooth. No harshness or dryness after the treatment.
Anthony Churchill –
Great for achieving a warm, balanced blonde with ash tones. The coverage on gray hair is impressive. I noticed a slight lift, which I liked. The formula is easy to mix and the result looks natural without being too bright.
Michael Churchill –
I’ve used several Wella shades before, and this one stands out for its depth and natural finish. The ash tone adds a subtle complexity that I didn’t expect. My hair feels soft and the colour stays vibrant even after a few washes.
Dorothy Chapman –
The colour is good, but it requires precise mixing. I had to adjust the developer ratio slightly to get the desired tone. It covers gray well, but the lift might be too strong for some hair types.
Luke Forsyth –
Professional results with minimal damage. The Me+ Technology seems to reduce irritation, which is a big plus. I’ve used this on both light and medium hair, and the finish is consistent and natural.