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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
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5-Alpha-Reductase-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
ALIZARIN *
ALPHA-LINOLENIC-ACID *
ARACHIDONIC-ACID *
ARTOCARPIN IC50=85 uM *
BIOCHANIN-A IC50=35 uM *
BIOCHANIN-A IC>80=100 uM *
CURCUMIN *
LINOLEIC-ACID *
OLEIC-ACID *
PALMITIC-ACID *
PALMITOLEIC-ACID *
STEARIC-ACID *
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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
Lactuca sativa Lettuce 6 35, 166
Lactuca scariola Prickly Lettuce 4 400, 295
Lagenaria siceraria Calabash Gourd; White-Flowered Gourd 4 872, 000
Laurus nobilis Bayleaf; Sweet Bay; Grecian Laurel; Bay Laurel; Laurel; Bay 3 2, 739, 000
Lawsonia inermis Henna; Mignonette; Jamaica-Mignonette; Mignonette Tree 4 3, 990, 200
Lens culinaris Lentil 5 18, 636
Lentinus edodes Shiitake 3 0
Leonotis nepetaefolia Catnipleaf Lion's-Ear 4 340, 860
Lepidium meyenii Maca; Peruvian Ginseng 3 30
Lepidium sativum Garden Cress 4 199, 485
Levisticum officinale Lovage 1 0
Ligustrum japonicum Japanese Privet; Ligustri Fructus 4 0
Ligustrum lucidum Chinese Privet; Glossy Privet; Ligustri Fructus; Privet; White Waxtree 3 0
Linum usitatissimum Flax; Linseed 5 2, 299, 320
Lobelia inflata Indian Tobacco; Lobelia 2 0
Lonicera japonica Japanese Honeysuckle 1 0
Luffa aegyptiaca Luffa; Smooth Loofah; Vegetable Sponge 4 1, 488, 000
Lupinus albus White Lupine 5 74, 180
Lycium chinense Wolfberry; Chinese Boxthorn; Chinese Matrimony Vine; Chinese Wolfberry; Gou Qi (Chin.); Lyciet de Chine (Fr.); Chinesischer Bocksdorn (Ger.); Daun Koki (Indones.); Spina Santa Cinese (Ital.); Kuko (Jap.); Kaukichai (Malays.) 1 0
Lycopersicon esculentum Tomato 6 24, 298