Natural Remedies - Healing with Medicinal Herbs

Evening primrose

Evening primrose (Oenothera biennis Onagraceae)


Other Names: Common Evening-Primrose, Evening Star, Sundrop, Suncup

Although native to North America, this biennial plant is very common in Europe. It produces large, short-lived yellow flowers arranged in clustered inflorescences. Evening primrose blooms from June to September, with flowers opening in the evening. The fruit is a long, thick, stalkless pod, with each containing about 600 small seeds.


Parts for Use

Seeds

  1. Seeds are collected when ripe.
  2. Oil is extracted from the seeds and encapsulated for pharmaceutical use.
  3. The oil is sometimes used as a seasoning for food.

Ingredients

Approximately 25% of each seed consists of oil rich in essential fatty acids, particularly linolenic and gamma-linolenic acid. The seeds also contain protein, fiber, and minerals, including a high calcium content.


Use in Treatment

Evening primrose oil is highly effective for relieving premenstrual syndrome (PMS), particularly breast pain. This is due to its fatty acids, mainly gamma-linolenic acid, which play a key role in synthesizing prostaglandins (PGE). These substances regulate hormones such as estrogen, progesterone, and prolactin, which are associated with the menstrual cycle. The fatty acids in evening primrose oil ensure an adequate supply of PGE, supporting proper hormonal function. PGE also helps maintain skin suppleness and elasticity by regulating sebum secretion, making the oil valuable in cosmetics for preventing skin aging. Studies show that prostaglandin E1 controls blood vessel dilation and has anti-inflammatory properties, making evening primrose oil effective for treating eczema, acne, and rheumatoid arthritis.


Cultivation

Evening primrose thrives in well-drained, dry soil in sunny locations. Under favorable conditions, it self-seeds and reproduces readily.


Preparation and Dosage

For Internal Use (Premenstrual Syndrome)

  1. Soft Capsules (500 mg): Take two capsules three times daily for the last ten days of the menstrual cycle.

For Eczema and Rheumatoid Arthritis

  1. Soft Capsules (500 mg): Take two capsules three times daily with meals.

For Skin Aging

  1. Soft Capsules (500 mg): Take one to two capsules daily with water during a meal.

Warnings

  1. Consult a healthcare professional before use.
  2. Do not use evening primrose oil during pregnancy or breastfeeding.
  3. Do not use evening primrose oil if you have any form of epilepsy.
  4. In some individuals, evening primrose oil may cause weight gain.