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

Biological Activity Sunscreen

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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
FERULIC-ACID Chemical Marketing Reporter; a weekly tabloid, 9/10/92.
FRAXETIN IC95=20 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
FRAXETIN IC98=50 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
FRAXIN IC23=20 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
FRAXIN IC73=50 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
GLABRIDIN *
LAWSONE 0.25% *
OPC *
OPCS *
P-AMINOBENZOIC-ACID 5-15% Martindale's 28th
P-AMINOBENZOIC-ACID IC47=2.5 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
P-AMINOBENZOIC-ACID IC93=25 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
P-AMINOBENZOIC-ACID IC95=5 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
PABA IC47=2.5 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
PABA IC93=25 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
PABA IC95=5 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
PARA-AMINOBENZOIC-ACID (PABA) *
PROCYANIDIN-A-2 *
PROCYANIDINS *
PROPYL-GALLATE Martindale's 28th
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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 30, 000
Polypodium vulgare Common Polypody; Sweet Fern 1 0
Populus balsamifera Balsam Poplar 1 0
Portulaca oleracea Purslane; Verdolaga 2 0
Prosopis juliflora Mesquite 1 0
Prunella vulgaris Self-Heal; Heal-All 4 0
Prunus armeniaca Apricot 4 17, 900
Prunus cerasus Sour Cherry 7 0
Prunus domestica Plum 3 0
Prunus dulcis Almond 2 0
Prunus laurocerasus Cherry Laurel 1 0
Prunus persica Peach 4 0
Prunus serotina Black Cherry; Wild Cherry 1 0
Prunus spinosa Blackthorn; Sloe 3 0
Psidium cattleianum Strawberry Guava 1 0
Psidium guajava Guava 1 10, 010
Pteridium aquilinum Bracken; Bracken Fern 3 0
Pueraria montana Kudzu; Kudsu 3 0