☯️Traditional Chinese Medicine

Dolichos Bean (Bai Bian Dou)

Lablab purpureus

About Dolichos Bean (Bai Bian Dou)

Dolichos Bean (Bai Bian Dou) (Lablab purpureus) is a herb used in the Traditional Chinese Medicine tradition to help with Digestive Issues, Fatigue, Diarrhea, and Gut Health. The aerial parts and leaves are the parts traditionally used, taken internally.

Botanical background

Lablab purpureus is a species of bean in the family Fabaceae. It is native to Africa and it is cultivated throughout the tropics for food. English language common names include hyacinth bean, lablab-bean bonavist bean/pea, dolichos bean, seim bean, lablab bean, Egyptian kidney bean, Indian bean, bataw and Australian pea. It is the only species in the monotypic genus Lablab.

Source: Wikipedia, via iNaturalist

Parts used

Aerial Parts · internalLeaves · internal
🍵

Tea / Infusion

1–3 cups daily
  • Steep 1–2 tsp of dried Dolichos Bean (Bai Bian Dou) in freshly boiled water for 5–10 minutes.
  • Cover while steeping.
  • Strain and drink.
💧

Tincture

20–40 drops in water, 2–3× daily
  • Pack dried Dolichos Bean (Bai Bian Dou) 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.
💊

Powder / Capsule

500 mg – 1 g, 1–3× daily
  • Grind dried Dolichos Bean (Bai Bian Dou) into a fine powder.
  • Fill size 00 capsules or stir into smoothies or honey.

Pregnancy, Breastfeeding & Children

No herb-specific pregnancy/child safety research is documented for Dolichos Bean (Bai Bian Dou) in our references — the guidance below is based on its general effect category, not research on Dolichos Bean (Bai Bian Dou) itself. Always confirm with a midwife, doctor, or pediatrician.

Pregnancy

Avoid

This herb is associated with stimulant activity, which can raise heart rate and blood pressure — generally best avoided or strictly limited in pregnancy. This is a general, mechanism-based caution, not herb-specific research.

Breastfeeding

Use Caution

Stimulant compounds pass into breast milk and can cause infant irritability or poor sleep — generally used cautiously and in moderation.

Children

Avoid

Stimulant effects on the developing cardiovascular and nervous system mean these herbs are generally avoided in children.

Contraindications

    Warnings

    ⚠️ 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.

    Drug & herb interactions

    May have a stimulant effect

    Watch for: Other caffeine-containing products, MAOIs, and stimulant medications (for ADHD or weight loss)

    Additive stimulant effects can raise heart rate and blood pressure.

    Where to find in nature

    Native region

    China, Taiwan, Korea, Japan

    Climate

    Temperate to subtropical

    Habitat

    Mountain forests, river valleys, and cultivated herb farms throughout East Asia

    🌿 To see Dolichos Bean (Bai Bian Dou) growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier — never consume a plant you are not 100% certain of.

    Where to buy

    In store

    • Chinese herbal medicine shops and TCM clinics
    • Chinatown herbal stores and Asian supermarkets with herbal 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 — 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 — verify brand certifications and check third-party testing

    Etsy

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

    Quality tips

    When buying Dolichos Bean (Bai Bian Dou), 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 — quality varies enormously.