A step-by-step henna paste recipe plus the chemistry behind it: body-art powder, mild acid, dye release, terpene oils, straining, cones and freezing.
An honest look at henna for hair: what it really does to the shaft, realistic colour results by starting shade, its permanence, downsides and PPD safety.
The history of mehndi: what the archaeology actually shows, why it links to weddings, how lawsone stains skin, and how the regional styles separated.