Are any of these things bad for hair when taken internally?

I've just got an order of bone flesh and cartilage tea in, and plan on drinking it fairly frequently to address a few non hair loss issues. I was just wondering if anyone knew off hand if any of its ingredients were bad for hair , or if anyone has some useful info on their benefits.

The tea is comprised of white oak bark, comfrey root, black walnut leaf, gravel root, marshmallow root, mullein leaf, scullcap, wormwood, and lobelia (all wildcrafted).

Any info would be greatly appreciated. I'd rather not find out if any of these things can make hair loss worse the hard way.

TheFunkyStumpfighter - None of these appear to be detrimental or negative for hair.