Complex sentence: It was also at this time that Vaucher, using her intuitive knowledge of plants, set up a small cottage industry producing herbal remedies, again, long before the huge market that exists for such products today.
Split into simpler sentences: It was also in this period that Vaucher, using her intuitive knowledge of plants, set up a small cottage industry producing herbal remedies. Again, this was long before the huge market that exists for such products today.