I haven't tried it, but it doesn't sound like it would hurt to try at least once. It's seems like it could be a rather inexpensive "product" to add to a regimen in addition to having tea to drink if you didn't like it in your hair. I wonder if you did any of them often enough if it would change hair color?

I think I had read somewhere about using chammomile to sort of help lighten hair over time. I would guess that any of the sort of brown teas may help enrich brown hair or maybe darken blondish hair based on that?
3C/4A, fine texture, low-medium density, and low porosity
CG since November 2013.

Pre-Poo: infrequent now, Coconut Oil overnight
Shampoo: Curls unleashed/for occasional sulfate wash when needed, everlasting sunshine.
Conditioner: Suave Naturals Everlasting Sunshine and GVP's conditioning balm.
Styler: iagirl's flaxseed curl cream or gelatin gel/conditioner mix. <3
PT: iagirl's gelatin treatment 3-4 times a month, with conditioner/honey/avj