Evening primrose has also been used to treat asthma, eczema, attention deficit- hyperactivity disorder (ADHD), hepatitis B, high cholesterol, liver cancer, breast pain, obesity, menopausal hot flashes and night sweats, premenstrual syndrome (PMS), and skin or joint symptoms of psoriasis. However, research has shown that evening primrose may not be effective in treating these conditions.
Product Name | Evening Primrose extract |
Latin Name |
Oenothera biennis |
Part Used |
Whole herb |
Appearance |
Brownyellow powder |
Specification |
4:1--20:1 |
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Function |
1. Evening primrose extract will regulate brain function;
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Storage |
Store in a well-closed container away from moisture and direct sunlight |
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Shelf Life |
24 months if sealed and stored properly |
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Sterilization Method |
High-temperature, non-irradiated. |
Certificate of Analysis
Item |
Specification |
Test result |
Ratio Extract |
10:1 |
Conforms TLC |
Physical Control |
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Appearance |
BrownYellowpowder |
Conforms |
Odor |
Characteristic |
Conforms |
Taste |
Characteristic |
Conforms |
Part Used |
Whole herb |
Conforms |
Extract Solvent |
Water |
Conforms |
Loss on Drying |
≤5.0% |
Conforms |
Ash |
≤5.0% |
Conforms |
Particle size |
95% pass 80 mesh |
Conforms |
Allergens |
None |
Conforms |
Chemical Control |
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Heavy metals |
NMT 10ppm |
Conforms |
Arsenic |
NMT1ppm |
Conforms |
Lead |
NMT3ppm |
Conforms |
Cadmium |
NMT1ppm |
Conforms |
Mercury |
NMT0.1ppm |
Conforms |
GMO Status |
GMO Free |
Conforms |
Microbiological Control |
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Total Plate Count |
10,000cfu/g Max |
Conforms |
Yeast & Mold |
1,000cfu/g Max |
Conforms |
E.Coli |
Negative |
Negative |
Salmonella |
Negative |
Negative |