Educational reference only · Not medical advice
Botanical illustration of Borage

Borago officinalis

Borage

Boraginaceae

Evidence: InsufficientCaffeine Free MediterraneanSafety information on file
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At a Glance

Common name
Borage
Scientific name
Borago officinalis
Family
Boraginaceae
Region
Mediterranean
Plant part
Leaves, Flowers, Seed oil
Caffeine
Caffeine Free
Evidence
Insufficient
Safety review
Safety information on file

Safety & Cautions

Safety information on file
Contraindications
Avoid internal use of the leaf in pregnancy, breastfeeding, and liver disease (pyrrolizidine alkaloids); prefer PA-free seed oil. Avoid long-term use. Avoid with borage or Compositae allergy.
Drug interactions
Pyrrolizidine alkaloids may strain the liver; may enhance bleeding with anticoagulants; theoretical hepatotoxicity with other liver-affecting drugs; limited data.
Pregnancy
Avoid internal leaf use; pyrrolizidine alkaloids. Seed oil only under professional guidance; safety of medicinal doses has not been established.
Breastfeeding
Avoid internal leaf use; seek professional guidance before using seed oil.
Children
Avoid internal leaf use in children; do not self-medicate.
Allergies
Possible contact dermatitis from leaf hairs; rare food allergy; possible Boraginaceae cross-reactivity.
Known adverse effects
Hepatotoxic pyrrolizidine alkaloids (amabiline) in the leaf make internal use hazardous long-term; possible contact dermatitis from the hairy leaves.

Botanical Description

An upright annual herb with large rough hairy oval leaves and drooping star-shaped bright blue five-petalled flowers with a dark central cone; the leaves and flowers are the part used.

Also known as: Starflower, Herb of Gladness, Bee Plant, Tailor's Weed, Tailwort

Historical Background

Borage has been a Mediterranean and European garden herb for millennia, its bright blue star-flowers floated in cups to 'gladden the heart' and lend courage. Its mildly cucumber-flavored leaves and flowers brew a gentle, cheerful tea, used with care for its PA content.

Earliest recorded uses: Mediterranean and European traditions for millennia; a courage- and heart-lifting herb, flowers used in cups and salads.

Traditional preparations:

  • Flower infusion
  • Courage tea with lemon balm
  • Cucumber-flavored leaf tea

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Traditional European Herbalism

'Gladden the heart' and lend courage; flowers in cups.

Modern Herbalism

Cheerful and gentle tea (PA caution).

Flavor & Aroma

MildCucumber-likeGreenFloral

Aroma: Mild, slightly cucumber-like, green, floral

Tea Preparation

Preparation methods
Infusion
Steeping temperature
200°F (93°C)
Steeping time
5-10 minutes
Recommended vessel
Teapot
Blends well with
Lemon Balm, Mint, Honey, Lemon, Elderflower
200°F (93°C) 5-10 minutes

Modern Evidence

Evidence level: Insufficient

Borage has a tradition for courage, mood, and respiratory comfort. Clinical evidence is insufficient; the whole plant may contain pyrrolizidine alkaloids (PAs), so PA-free sources and limited intake are advised. It is not a treatment for depression, adrenal disorders, or any disease.

Evidence levels describe the state of research for the traditional use discussed here, not a recommendation. Historical use does not imply effectiveness.

References & Sources

  1. EMA HMPC · Boraginis herba assessment (2015)
  2. PubMed · Borago officinalis review (2019)

Entry last updated November 5, 2026

Soothing Brews

An educational encyclopedia preserving the history, traditions, and modern evidence behind herbs used in teas and infusions. Inspired by antique botanical manuscripts.

Steeped in tradition, grounded in honesty.

Please Note

This is an educational reference, not a medical resource. Historical use does not imply effectiveness. Natural does not always mean safe. Consult a qualified healthcare professional before using herbs, especially if pregnant, nursing, or taking medications.

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Preferred sources: NIH ODS · NCCIH · MSK Herbs · PubMed · WHO · EMA · German Commission E · Cochrane