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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
AESCULETIN IC98=20 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
AESCULETIN IC100=50 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
AESCULIN *
AESCULIN IC39=20 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
AESCULIN IC26=50 mg/l *
ALLANTOIN 0.10% Jim Duke's personal files.
ALOESIN Jim Duke's personal files.
APIGENIN *
CAFFEIC-ACID IC50=2.5 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
CAFFEIC-ACID IC91=5 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
CAFFEIC-ACID IC98=25 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
CHLOROGENIC-ACID *
CYCLOHEXYL-ANTHRANILATE Aloe Research Council - Duke writeup of non-peer reviewd book by Coats and draft by Henry
DIGALLOYL-TRIOLEATE 2-5% Martindale's 28th
DIHYDROXYACETONE Jim Duke's personal files.
ELLAGIC-ACID 0.50% Jim Duke's personal files.
ESCULETIN IC98=20 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
ESCULETIN IC100=50 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
ESCULIN IC39=20 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
ESCULIN IC26=50 mg/l *
Download these results as:
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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
Thymus serpyllum Creeping Thyme 2 18, 600
Thymus vulgaris Common Thyme; Garden Thyme; Thyme 4 152, 100
Tilia sp. Basswood; Lime; Linden 3 0
Tribulus terrestris Puncture-vine 1 0
Trifolium pratense Red Clover; Purple Clover; Peavine Clover; Cowgrass 3 0
Trigonella foenum-graecum Fenugreek; Greek Clover; Greek Hay; Bockshornklee (Ger.); Alholva (Sp.) 2 0
Triticum aestivum Wheat 5 49
Tropaeolum majus Nasturtium 1 0
Tussilago farfara Coltsfoot 1 3, 600
Uncaria catechu Gambir; Pale Catechu 1 0
Uncaria guianensis Cat's Claw; Una de Gato; Garabato Colorado; Tambor Huasca; Ungunagi 2 0
Uncaria tomentosa Cat's Claw; Garabato Amarillo; Una de Gato 2 0
Urtica dioica European Nettle; Stinging Nettle 5 36, 000
Vaccinium corymbosum Blueberry 6 3, 000
Vaccinium macrocarpon Cranberry; Large Cranberry; American Cranberry 2 0
Vaccinium myrtillus Bilberry; Whortleberry; Dwarf Bilberry 5 14, 460
Vaccinium vitis-idaea Cowberry; Lingen; Lingonberry 1 0
Valeriana officinalis Valerian; Common Valerian; Garden-Heliotrope 3 74, 100
Vanilla planifolia Vanilla; Bourbon Vanilla 2 0
Verbena officinalis Vervain 1 30, 000