🌺Thai Traditional Medicine

Star Anise (Poi Kak)

Illicium verum

About Star Anise (Poi Kak)

Star Anise (Poi Kak) (Illicium verum) is a herb used in the Thai Traditional Medicine tradition to help with Digestive Issues, Respiratory Issues, Nausea, and Cough. The aerial parts and leaves are the parts traditionally used, taken internally.

Botanical background

Illicium verum is a medium-sized evergreen tree native to northeast Vietnam and southwest China. A spice commonly called star anise, staranise, star anise seed, Chinese star anise, or badiam that closely resembles anise in flavor is obtained from the star-shaped pericarp of the fruit of Illicium verum which are harvested just before ripening. Star anise oil is a highly fragrant oil used in cooking, perfumery, soaps, toothpastes, mouthwashes, and skin creams. About 90% of the world's...

Source: Wikipedia, via iNaturalist

Parts used

Aerial Parts Β· internalLeaves Β· internal
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Tea / Infusion

1–3 cups daily
  • Steep 1–2 tsp of dried Star Anise (Poi Kak) in freshly boiled water for 5–10 minutes.
  • Cover while steeping.
  • Strain and drink.
πŸ’§

Tincture

20–40 drops in water, 2–3Γ— daily
  • Pack dried Star Anise (Poi Kak) into a jar and cover with 40–60% alcohol.
  • Seal and steep for 4–6 weeks, shaking daily.
  • Strain and store in a dark dropper bottle.
πŸ’Š

Powder / Capsule

500 mg – 1 g, 1–3Γ— daily
  • Grind dried Star Anise (Poi Kak) into a fine powder.
  • Fill size 00 capsules or stir into smoothies or honey.
♨️

Steam Inhalation

1–2Γ— daily during acute symptoms
  • Add 2–3 tbsp of Star Anise (Poi Kak) to a bowl of just-boiled water.
  • Drape a towel over your head and inhale steam for 5–10 minutes.

Contraindications

  • Pregnancy & breastfeeding β€” insufficient safety data; consult your doctor
  • Children under 12 β€” therapeutic dosage not established

Warnings

⚠️ Pregnancy & Breastfeeding

Safety during pregnancy and breastfeeding has not been established for most herbal remedies. Consult your midwife or doctor before use.

⚠️ Carrot / Celery Family Allergy

Star Anise (Poi Kak) belongs to the Apiaceae (carrot/celery) family, a known cross-reactivity group with birch pollen ("oral allergy syndrome"). Use caution if you have a birch pollen or celery allergy.

⚠️ Allergic Reactions

Discontinue immediately if you experience rash, itching, swelling, or difficulty breathing.

⚠️ Not Medical Advice

This information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies.

Where to find in nature

Native region

Thailand, Myanmar, Laos, Cambodia

Climate

Tropical monsoon

Habitat

Tropical forests, temple gardens, and village herb plots of Southeast Asia

🌿 To see Star Anise (Poi Kak) growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier β€” never consume a plant you are not 100% certain of.

Where to buy

In store

  • Thai and Southeast Asian grocery stores
  • Asian supermarkets with herbal and fresh produce sections
  • Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
  • Naturopathic clinics and integrative medicine practices
  • Specialist herbal apothecaries and herbalist practices

Online

iHerb

Wide selection of standardised extracts, capsules, and powders with lab testing

Mountain Rose Herbs

Premium bulk dried herbs β€” certified organic, ethically sourced

Starwest Botanicals

Large selection of certified organic bulk herbs and powders

Herb Pharm

High-quality liquid extracts and tinctures, rigorous quality standards

Amazon

Convenient β€” verify brand certifications and check third-party testing

Etsy

Small-batch artisan herbalists, hand-harvested and wildcrafted herbs

Quality tips

When buying Star Anise (Poi Kak), look for: certified organic labelling, clearly stated country of origin, third-party lab testing for heavy metals and pesticides, and a batch expiry date. Standardised extracts offer consistent dosing; bulk dried herbs are more economical for regular use. Avoid very cheap, unlabelled products β€” quality varies enormously.