The seeds of the North American evening primrose seed extract (Oenothera biennis) plant are used to make evening primrose oil extract. It gets its name from its evening-blooming yellow blossoms.
Organic evening primrose seed co2 extract and other omega-6 fatty acids in the oil have analgesic (pain-relieving) and properties.
Basic Information:
Product Name: |
Evening Primrose Extract |
Part Used: |
Root |
Latin Name: |
Oenothera biennis |
Extract Solvent: |
Water&Ethanol |
ITERMS |
SPECIFICATION |
METHOD |
Identification |
Positive |
TLC |
Appearance |
Brown Powder |
Visual |
Odor & Taste |
Characteristic, light |
Organoleptic test |
Loss on drying (5g) |
NMT 5% |
USP34-NF29731> |
Ash (2g) |
NMT 5% |
USP34-NF29281> |
Total heavy metals |
NMT 10.0ppm |
USP34-NF29231> |
Arsenic (As) |
NMT 2.0ppm |
ICP-MS |
Cadmium(Cd) |
NMT 1.0ppm |
ICP-MS |
Lead (Pb) |
NMT 1.0ppm |
ICP-MS |
Mercury (Hg) |
NMT 0.3ppm |
ICP-MS |
Solvent residues |
USP & EP |
USP34-NF29467> |
Pesticides Residues |
||
666 |
NMT 0.2ppm |
GB/T5009.19-1996 |
DDT |
NMT 0.2ppm |
GB/T5009.19-1996 |
Total heavy metals |
NMT 10.0ppm |
USP34-NF29231> |
Arsenic (As) |
NMT 2.0ppm |
ICP-MS |
Cadmium(Cd) |
NMT 1.0ppm |
ICP-MS |
Lead (Pb) |
NMT 1.0ppm |
ICP-MS |
Mercury (Hg) |
NMT 0.3ppm |
ICP-MS |
Microbiological |
||
Total Plate Count |
1000cfu/g Max. |
GB 4789.2 |
Yeast & Mould |
100cfu/g Max |
GB 4789.15 |
E.Coli |
Negative |
GB 4789.3 |
Staphylococcus |
Negative |
GB 29921 |
Anecdotal evidence from menopausal women suggests that using evening primrose seed extract can alleviate hot flushes.
According to a 2013 study, hot flushes could be reduced in frequency, intensity, and duration by taking organic evening primrose seed co2 extract for six weeks.
Pre-menstrual syndrome (PMS) Many women take EPO to treat PMS symptoms like breast tenderness, low mood, and water retention. The women in the study also reported a significant improvement in their sense of well-being.9 According to the Royal College of Obstetricians and Gynecologists, it can lessen breast tenderness.10 A 1983 study found that taking EPO was "highly effective" for treating PMS symptoms11, though more research is needed.
Acne It is thought that the GLA in evening primrose seed extract may improve acne by reducing inflammation and minimising scarring, with a Korean study conducted in 2014 concluding that GLA reduced inflammation in acne sufferers.15 More evidence is needed before evening primrose oil extract can be recommended as an acne treatment. Dry skin conditions The European Medicines Agency states that EPO can be used to relieve itching in both short-term and long-term dry skin conditions. It is also frequently taken by people with eczema to help
Rheumatoid arthritis patients frequently use arthritis EPO to alleviate stiffness and pain.
One review found taking it assisted ease morning solidness in patients with the condition.
Versus Joint pain says, while the proof isn't definitive, it might 'help in that frame of mind of agony and irritation'.
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