Thymus vulgaris · Common Thyme · Garden Thyme
500 mg · vegan · gluten-free · 120 caps
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Thymus vulgaris is a Mediterranean herb rich in thymol and carvacrol, phenolic compounds with well-documented antimicrobial, antispasmodic, and expectorant properties. Thyme extract (especially the proprietary formulation Bronchipret® Saft) has been evaluated in RCTs for acute bronchitis in children and adults, showing modest but significant benefits over placebo.
Thymol disrupts bacterial cell membranes and inhibits biofilm formation. It also has mild antispasmodic effects on bronchial smooth muscle and stimulates ciliary beat frequency, potentially enhancing mucus clearance. Carvacrol contributes additional antimicrobial activity. These effects are documented in vitro and in animal models; human respiratory data is more limited.
Adults with acute bronchitis or respiratory infection seeking herbal adjunctive support. Not a substitute for antibiotics when bacterial infection is confirmed, or for medical evaluation of severe dyspnea or hemoptysis.
Avoid during pregnancy and breastfeeding (thymol may be embryotoxic in high doses). Use caution with thyroid conditions (thyme may affect thyroid hormone levels). Essential oil is highly concentrated and should not be taken internally without professional guidance.
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✓ Take at first sign of respiratory infection; continue throughout the day
✓ Take at first sign of respiratory infection; continue throughout the day
✓ Take with meals to reduce potential stomach upset from phenolic compounds
Thymol disrupts bacterial cell membranes and inhibits biofilm formation.
Each bar = one cited trial. Effect varies by methodology, dose, and population.
Representative cohort from published RCT data
Relative to baseline (100). Data from published clinical literature.
In vitro
→ Thyme essential oil and thymol showed potent antimicrobial activity against respiratory pathogens including S. aureus, S. pneumoniae, and H. influenzae
Review
→ Thymol and carvacrol showed broad-spectrum antimicrobial, antifungal, and antispasmodic properties; supported traditional respiratory uses
Meta-analysis of 5 RCTs
→ Thyme-containing preparations significantly improved cough frequency and severity in acute bronchitis vs placebo. Effect sizes were modest.
B · Strong in vitro antimicrobial data. A 2022 meta-analysis of 5 RCTs showed modest but significant improvement in acute bronchitis symptoms. Evidence is better than most respiratory botanicals but still limited by small sample sizes and short durations.
A plain-English read of the literature behind this supplement. Not a clinical recommendation.
Key citations: Ventura 2016 (selenium thyroid meta-analysis), Wichman 2016 (Anti-TPO reduction RCT). richResearch section contains study filters.
How to use Thyme Leaf specifically for Acute bronchitis — the right dose, timing, blood markers to track, and how to know if it is working.
A clinical evidence review of Thyme Leaf — RCT data, effect sizes, evidence grade, and what the numbers mean for your specific situation.
Everything you need to know about Thyme Leaf — mechanism, dose, safety, buying guide for India, and what the research actually says.
SacredBod's longer take on Thyme Leaf — context the structured blocks above don't capture.
Thymus vulgaris is a Mediterranean herb rich in thymol and carvacrol, phenolic compounds with well-documented antimicrobial, antispasmodic, and expectorant properties. Thyme extract (especially the proprietary formulation Bronchipret® Saft) has been evaluated in RCTs for acute bronchitis in children and adults, showing modest but significant benefits over placebo.
Thymol disrupts bacterial cell membranes and inhibits biofilm formation. It also has mild antispasmodic effects on bronchial smooth muscle and stimulates ciliary beat frequency, potentially enhancing mucus clearance. Carvacrol contributes additional antimicrobial activity. These effects are documented in vitro and in animal models; human respiratory data is more limited.
Who benefits most
Adults with acute bronchitis or respiratory infection seeking herbal adjunctive support. Not a substitute for antibiotics when bacterial infection is confirmed, or for medical evaluation of severe dyspnea or hemoptysis.
Dosage and form
500 mg is the typical effective range. Forms matter: choose standardised extracts or highly bioavailable delivery formats (see the Forms tab). Take as directed.
Side effects and cautions
Generally well-tolerated. Avoid if you: Avoid during pregnancy and breastfeeding (thymol may be embryotoxic in high doses). Use caution with thyroid conditions (thyme may affect thyroid hormone levels). Essential oil is highly concentrated and should not be taken internally without professional guidance..
The evidence
Human clinical trials and mechanistic research support the use of Thyme Leaf for its primary indication. See the Research tab for full citations and study summaries.
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