Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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

Biological Activity Sunscreen

Select a Results View:

Download these results as:
CSV
XLSX
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 IC98=25 mg/l Lazarova*, G., Kostova, I., Neychev, H. 1992. Photodynamic damage prevention by some hydroxycoumarins. Fitoterapia 64(2): 134-136, 1993.
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.
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:
CSV
XLSX
List of Activity Plants.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Symphytum officinale Comfrey 3 45, 500
Syringa vulgaris Lilac 1 0
Syzygium aromaticum Clove; Clovetree 1 42
Tagetes patula French Marigold 2 0
Tanacetum vulgare Tansy 3 0
Taraxacum officinale Dandelion 4 0
Taxus baccata Common Yew 2 17.59999942779541
Tecoma stans Yellow Elder 2 0
Tephrosia purpurea Purple Tephrosia; Wild Indigo 1 0
Terminalia arjuna Arjun; Arjuna 1 1, 006
Terminalia bellirica Beleric Myrobalan; Bahera; Myrobalan Belleric; Myrobalan; Belleric 1 0
Terminalia catappa Indian Almond; Tropical Almond; Malabar Almond 1 0
Terminalia chebula Ink Nut; Myrobalan; Black Myrobalan; Chebulic Myrobalan 2 4, 276
Terminalia ivorensis Idigbo; Emire; Blackbark; Black Afara; Brimstonewood; Satinwood; Shinglewood 1 0
Terminalia pallida 1 0
Teucrium chamaedrys Wall Germander 2 200
Teucrium polium Golden Germander 1 0
Teucrium scordium Water Germander 2 0
Teucrium scorodonia Germander; Wood Germander 2 120, 000
Theobroma cacao Cacao 6 80, 000