Knowltonia vesicatoria aerial part (Crude extract)
Ptaeroxylon obliquum stem (Crude extracts)
Sansevieria hyacinthoides leaf (Crude extracts)
Searsia burchellii leaf (Crude extracts)
Typha capensis aerial part (Crude extracts)
Zantedeschia aethiopica leaf and stem (Crude extracts)
Trachyspermum ammi (Petroleum ether extract)
Unprotected dimer
Ferulic acid
Syringaldehyde
Cinnamaldehyde
Clematis wightiana (Volatile constituent)
Daucus crinitus leaf (Methanol extract)
Daucus crinitus root (Methanol extract)
Daucus crinitus stem (Methanol extract)
FR-900403 (Peptide)
Nardostachys chinensis (Essential oil)
Thymus ciliatus (Essential oil)
Thymus broussonetii (Essential oil)
Cassine transvaalensis bark (Hexane extract)
Thymus maroccanus (Essential oil)
1-Benzylpiperazine (Benzylpiperazine or BZP)
Clioquinol (Betnovat/chinoform) cream
Griseofulvin
Hydrogen peroxide
Mallotus metcalfianus (CHCl3 subfraction D)