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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
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Tyrosinase-Inhibitor

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List of activity chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Dosage Reference
ACETALDEHYDE ID50=43 ug/ml *
ANACARDIC-ACID *
ANISALDEHYDE ID50=380-970 uM *
ANISALDEHYDE ID50=0.32 mM *
ANISALDEHYDE ID50=320 uM *
ANISE-ALCOHOL ID50=5,300 uM *
ANISIC-ACID ID50=680 uM *
ANISOLE ID50=7,100 uM *
ARBUTIN IC50=40 uM *
BENZALDEHYDE ID50=0.82 mM *
BENZALDEHYDE ID50=830 uM *
BENZALDEHYDE ID50=820 uM *
BENZALDEHYDE ID50=87 ug/ml *
BENZOIC-ACID ID50=710 uM *
BENZOIC-ACID ID50=640 uM *
CINNAMALDEHYDE ID50=970 uM *
CINNAMALDEHYDE ID50=129 ug/ml *
CINNAMIC-ACID ID50=700 uM *
CITRAL ID50=1,500 uM *
CITRAL ID50=1.5 mM *
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List of Activity Plants.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Phyllanthus emblica Emblic; Myrobalan 2 23, 700
Phyllanthus niruri Seed On The Leaf 1 0
Physalis peruviana Cape Gooseberry; Ground Cherry 1 0
Picrorhiza kurrooa Picrorhiza 1 0
Pimenta dioica Allspice; Jamaica-Pepper; Pimenta; Clover-Pepper; Pimento 1 0
Pimenta racemosa Bayrum Tree; West Indian Bay 1 124, 800
Pimpinella anisum Anise; Sweet Cumin 6 15, 034
Pinus mugo Dwarf Pine; Swiss Mountain Pine 4 0
Pinus sylvestris Scotch Pine 7 0
Piper auritum Cordoncillo; Hierba Santa; Hoja Santa 1 0
Piper methysticum Kava-Kava 3 0
Piper nigrum Black Pepper; Pepper; White Pepper 6 0
Pistacia lentiscus Mastic; Chios Mastictree; Mastictree; Mastixbaum (Ger.); Lentisco (Sp.) 2 0
Pisum sativum Pea 2 500
Plantago major Common Plantain 3 0
Plumeria acutifolia Frangipani 2 0
Podophyllum hexandrum Himalayan Mayapple 2 12, 000
Podophyllum peltatum Mayapple 2 50, 000
Podophyllum pleianthum Chinese Mayapple 2 0
Pogostemon cablin Patchouli 2 0