Hyssop has been used as a spiritual cleansing herb amongst various cultures  for many thousands of years. Psalm 51:7 says "Purge me with hyssop, and I shall be clean: wash me, and I shall be whiter than snow." There are other bible verses that speak of the use of hyssop in cleansing and purification ritual.
 
The Purge is a spiritual cleansing bar that purges the aura with hyssop, and a few other ingredients. Along with doing your individual soul/shadow work, this bar will purify your energy field and allow your inner glow to shine through!