Review (3/5): Again, not 100% boar bristle.
Someone also commented it was not 100% boar bristle. The online description itself does not state its 100% though the label on the bag it came it did. So that's a blow.
I've only tried brushing my hair with it this evening and so far it seems to be spreading the oil around fine, will update if I notice anything else off.
If you want 100% boar bristles and not a mix, go look at something else.