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respiratory

Thyme

Thymus vulgaris

百里香

Pinyin: Bǎi Lǐ Xiāng

🌿

Plant Family

Lamiaceae

Part Used

Leaf, flowering tops

Origin

Mediterranean region (Southern Europe, North Africa); cultivated worldwide

Safety Level

Safe

Overview

Thyme is a fragrant culinary and medicinal herb native to the Mediterranean. It has been used since ancient times by the Egyptians, Greeks, and Romans for both culinary and medicinal purposes. Thyme is best known for its powerful antimicrobial effects on the respiratory system, making it a go-to herb for coughs, bronchitis, and sore throats.

Traditional Chinese Medicine Properties

Nature (四气)

warm

Flavors (五味)

pungent, bitter

Meridians (归经)

lung, spleen, stomach

Health Benefits

✓ Antimicrobial (antibacterial, antifungal, antiviral) - thymol is the main active
✓ Respiratory support: coughs, bronchitis, chest congestion (expectorant and antispasmodic)
✓ Sore throat relief (gargle or tea)
✓ Digestive aid (relieves gas, bloating, intestinal spasms)
✓ Antioxidant
✓ Anti-inflammatory
✓ Oral health (antibacterial against gum disease and plaque)
✓ May help with acne (topical - antibacterial and anti-inflammatory)
✓ Immune support

Traditional Uses

  • Coughs, bronchitis, and chest congestion
  • Sore throat and tonsillitis
  • Digestive complaints and gas
  • Antiseptic for wounds and infections (topical)
  • Worm infections
  • Headache and nervous disorders
  • Mouthwash and oral hygiene

Active Constituents

The key compounds responsible for this herb's therapeutic effects:

Essential oil: thymol (20–55% - primary active), carvacrol, p-cymene, linalool, borneolFlavonoids: apigenin, luteolin, thymonin, naringeninPhenolic acids: rosmarinic acid, caffeic acidTanninsTriterpenes: ursolic acid, oleanolic acidSaponins

Usage & Dosage

How to Use

Tea, tincture, essential oil (aromatherapy/topical), gargle/mouthwash, syrup, capsule, steam inhalation, culinary herb.

Suggested Dosage

Tea: 1 tsp dried herb per cup, 2–3x/day; tincture: 2–3 mL 3x/day; essential oil: 2–3 drops in diffuser for respiratory support, or diluted in carrier oil for topical chest rub; capsules: follow product label. For cough: often combined with honey.

Quality & Storage

Harvest Season

Leaves can be harvested throughout the growing season. Best just before or at early flowering (spring to early summer) when essential oil content is highest. Harvest in the morning after dew has dried.

Quality Indicators

Dried thyme: gray-green to green color, strong aromatic scent, mostly leaves with minimal stems. Essential oil: should be clear to pale yellow with strong herbaceous scent. Look for thymol content in essential oil. French thyme (T. vulgaris) and Spanish thyme have different chemotypes.

Storage

Dried thyme: airtight container in cool dark place, 1–2 years. Fresh thyme: refrigerate in damp paper towel for 1–2 weeks, or freeze. Essential oil: dark glass bottle, cool dark place, 2–3 years.

Safety Information

Contraindications

Pregnancy (large medicinal doses may stimulate uterus - culinary fine)Breastfeeding (excessive amounts - culinary fine)Essential oil: do NOT ingest undiluted (can be toxic)Severe liver or kidney disease (essential oil - avoid)Children (essential oil - use with extreme caution and heavy dilution; oral use not recommended)Allergy to plants in the mint family

Possible Side Effects

  • Generally very safe when used as culinary herb or in tea
  • Essential oil: skin irritation and allergic reactions (always dilute for topical use)
  • High oral doses of essential oil: nausea, vomiting, diarrhea, headache, dizziness (toxic)
  • Rare: allergic reaction to thyme
  • Thymol (in high concentrations) can be irritating to mucous membranes

Drug Interactions

  • Blood thinners (anticoagulants) - high doses may increase bleeding risk (mild)
  • Sedatives and CNS depressants (may enhance - with essential oil)
  • Antibiotics (may interact - generally beneficial but monitor)
  • Generally low interaction potential when used in normal culinary/tea amounts

Note: Always consult with a qualified healthcare practitioner before starting any herbal supplement, especially if you are pregnant, nursing, have medical conditions, or take medications.

References & Research

Information on this page is based on traditional herbal knowledge and modern scientific research. For a comprehensive list of references, please refer to our full citations page.

ℹ️ Disclaimer

This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. The FDA has not evaluated these statements. Always consult a qualified healthcare provider before using herbal supplements.

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