You can make it yourself, I'm indian and I dyed my hair red using henna (I lightened my hair naturally using lemon juice so it would show) and my mum makes it for me. Search up on google "How to make your own henna" or "How to make your own mendhi". (F.Y.I Mendhi is the same thing as henna). Hope this helped <3
Stunning bright red hair color by Siân from floralemotions.tumblr.com:
i used Passion Red Iluminance by Schwarzkopf.
Also i wanted to know if anyone has any experience in using henna to get red hair ? Where should i buy it ? (UK) xxxx