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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=0.32 mM *
ANISALDEHYDE ID50=380-970 uM *
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=820 uM *
BENZALDEHYDE ID50=87 ug/ml *
BENZALDEHYDE ID50=830 uM *
BENZALDEHYDE ID50=0.82 mM *
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=1.5 mM *
CITRAL ID50=1,500 uM *
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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
Polygala senega Seneca Snakeroot; Senega 1 0
Polygonum aviculare Prostrate Knotweed 1 0
Polygonum hydropiper Common Smartweed 2 0
Polygonum hydropiperoides Mild Water Pepper 3 0
Polypodium vulgare Common Polypody; Sweet Fern 1 0
Populus balsamifera Balsam Poplar 2 0
Populus tacamahacca Balm Of Gilead 2 0
Prosopis juliflora Mesquite 1 0
Prunella vulgaris Self-Heal; Heal-All 2 0
Prunus armeniaca Apricot 3 0
Prunus cerasus Sour Cherry 4 12
Prunus domestica Plum 3 0
Prunus dulcis Almond 4 32, 800
Prunus laurocerasus Cherry Laurel 4 1, 824
Prunus persica Peach 5 0
Prunus serotina Black Cherry; Wild Cherry 4 0
Prunus spinosa Blackthorn; Sloe 2 0
Psidium cattleianum Strawberry Guava 2 0
Psidium guajava Guava 4 6, 200
Pteridium aquilinum Bracken; Bracken Fern 5 0