I've been using the same framesi FRAMCOLOR FUTURA 6N formula on my client for years: Why am I not able to achieve the same grey coverage I used to?

Why it is important to keep re-evaluating your long-term client's formula every couple of years.

When coloring the same client for many years, it’s extremely important to reevaluate the hair every few years. What may have been 25% gray has now become 75% gray. FRAMCOLOR FUTURA 6N used alone may have been OK years ago, but over 50% gray, we recommend mixing the 6N with 6D or with 6XN for superior, deep gray coverage. Very soon we will be launching the FRAMCOLOR FUTURA NN Series which can be used alone for even up to 100% gray coverage.