Hi

I'm Selene and I'm new to the forum. I never really dyed my hair much (once when I was 16 and once a month ago), but I thought of beginning to dye it more frequently.
My main goal is actually to make it grow longer - it is currently 51.5cm and I want to reach at least 80cm...
I heard henna helps with hair growth, so I dyed it ginger (the last picture shows my original color and what I had right after dying it). However - I don't want to ruin my hair (since it has to grow!) so I came here for tips.
The recipe I used was:
250gr red henna
4 grapefruits
5 lemons
2 spoons of red paprika
I didn't really see any difference in quality before and after dying - my hair seemed a bit weaker at first, actually, probably from the lemon juice (perhaps I should use oranges instead....

). I am not really certain how much longer it grows than before - but I dyed it almost 7 weeks ago, and the roots are about 1.5cm long. Is that good? or is it slow?
So.... Do you have any tips on dying with henna?
Which is the best frequency to dye it, considering hair growth and health as the main objective?
Which recipe do you recommend for it? (if you know a better one than mine)
Do you have any tips on how to make it healthier and longer in general?
Also... I thought of using a mix of black and red henna to make the tips dark brown... Do you think it would suit me?
