As a user of the "old" formula, I jumped on the new formula in color 5.1: easy to use and gives a wonderful end result where my undertone is more towards "ash" and away, away, away from all red and golden tones! As usual, when I dye my hair darker, it first turns a bit darker than desired, but that disappears after one or two washes and is completely normal. Is there even a difference between the "new" and "old" formulas? Yes, there is, and then it's up to the users to decide if it's "better" or "worse". The older formula was a dye that held wonderfully well; the new formula is a semi-dye and it "bites" more into my hair - so basically, it feels like I've dyed my hair. (I have fine, thin hair, fyi) For me, it works perfectly, but if you expected to be able to wash the color out - like the old version - be prepared that it might not happen now. Happy Colouring!

This is fantastic. It treats the hair properly and provides heat protection! What made me fall for it is the scent. It smells like when you’ve just had your hair done at the salon. And the scent lasts long! I’m obsessed! The only thing that disappoints me is that it contains silicones and parabens, which is not uncommon in hair products, but I would rather use a product without this. 💖

Got a recommendation for this in the hair color test really brown without red tones, exactly what I want on my sun-bleached hair. 10/10