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

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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
CAFFEIC-ACID *
CHLOROGENIC-ACID *
CICHORIC-ACID IC87=20 uM *
CYNARIN *
ECHINACOSIDE IC90=20 uM *
FUKINOLIC-ACID IC47-64=0.22-0.24 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
Helianthus annuus Sunflower; Girasol 2 59, 608
Helichrysum angustifolium Everlasting; Immortelle 1 0
Hordeum vulgare Barley; Barleygrass 2 0
Houttuynia cordata Fishwort; Dokudami; Yu Xing Cao 1 0
Humulus lupulus Hops 2 0
Hydrastis canadensis Goldenseal 1 0
Hyoscyamus niger Henbane 1 0
Hypericum perforatum Common St. Johnswort; Hypericum; Klamath Weed; St. John's-wort; Goatweed 2 10, 000
Hyssopus officinalis Hyssop 1 0
Ilex paraguariensis Mate; Paraguay Tea; South American Holly 1 0
Inonotus obliquus 1 0
Ipomoea batatas Sweet Potato 2 0
Ipomoea purga Jalap 1 40, 000
Juglans nigra Black Walnut 1 0
Juglans regia English Walnut 2 949
Juniperus communis Common Juniper; Juniper 2 0
Kalanchoe pinnata Air Plant; Siempre Viva 1 0
Lactuca sativa Lettuce 1 0
Laurus nobilis Bayleaf; Sweet Bay; Grecian Laurel; Bay Laurel; Laurel; Bay 1 0
Levisticum officinale Lovage 1 0