Chamomile is a genuine anti-inflammatory, not just a folk remedy. Its flowers contain flavonoids and essential oils that suppress multiple inflammatory pathways in the body, and both lab studies and clinical trials back this up. The strongest evidence centers on German chamomile (Matricaria chamomilla), which contains roughly ten times more of the key anti-inflammatory compounds than Roman chamomile.
How Chamomile Reduces Inflammation
Chamomile’s anti-inflammatory power comes primarily from two types of compounds: flavonoids like apigenin, luteolin, and quercetin, and essential oil components like chamazulene and bisabolol. Apigenin is the star player. Dried chamomile flowers contain about 0.8% to 1.2% apigenin, and when researchers analyze chamomile extract, apigenin-based compounds account for over 90% of its active flavonoid content.
These compounds work by shutting down a central inflammatory switch in your cells called NF-kB. This protein complex acts like a master control panel for inflammation: when activated, it triggers the production of inflammatory molecules throughout the body. Chamomile blocks NF-kB activation in a dose-dependent manner, meaning the more chamomile extract present, the greater the suppression. Specifically, it prevents NF-kB from entering the cell nucleus and turning on genes that produce inflammatory signals like nitric oxide, TNF-alpha, and interleukins IL-1 and IL-6.
Chamomile also selectively inhibits COX-2, the same enzyme targeted by common anti-inflammatory drugs like ibuprofen. The selectivity matters because COX-1 (the related enzyme) protects your stomach lining. By targeting COX-2 without heavily affecting COX-1, chamomile reduces inflammation through a mechanism that’s gentler on the gut than many over-the-counter painkillers.
What the Clinical Trials Show
Lab results are one thing, but chamomile also performs well in human studies. A 2025 systematic review and meta-analysis of 11 randomized clinical trials found that chamomile produced statistically significant reductions in both pain severity and mucosal inflammation. The pooled data showed chamomile reduced mucosal pain scores by an average of 0.70 points compared to controls, confirming it actively reduces tissue inflammation rather than simply masking discomfort. The review concluded that chamomile is effective for pain relief, wound healing, and recovery from tissue injury.
In a trial involving patients with type 2 diabetes, drinking chamomile tea reduced high-sensitivity C-reactive protein (a blood marker of systemic inflammation) by 57.2% compared to the control group. TNF-alpha, another inflammatory marker, dropped by about 24%. These are substantial reductions, suggesting that even something as simple as drinking chamomile tea regularly can lower inflammation circulating throughout the body. The same study found a 23.6% reduction in insulin resistance, which is closely tied to chronic inflammation.
A separate trial in patients with depression found that herbal tea containing chamomile significantly reduced CRP levels compared to controls, reinforcing the idea that chamomile’s anti-inflammatory effects extend beyond localized tissue and into whole-body inflammation.
Oral and Gum Health
One of the more practical applications is using chamomile as a mouth rinse. A double-blind, placebo-controlled trial compared a 1% chamomile mouth rinse to chlorhexidine, the gold standard antiseptic mouthwash used in dentistry, for managing chronic gum disease. After three months, both rinses produced comparable improvements in gum inflammation, plaque levels, and pocket depth. The differences between chamomile and chlorhexidine were statistically nonsignificant across every measurement. Both were significantly better than the placebo. This positions chamomile as a viable natural alternative for managing gum inflammation, particularly for people who dislike the taste or staining associated with chlorhexidine.
German vs. Roman Chamomile
Not all chamomile is created equal. The two main varieties, German chamomile and Roman chamomile, differ dramatically in their anti-inflammatory potency. German chamomile essential oil contains about 50% chamazulene (the compound responsible for its deep blue color), while Roman chamomile oil contains just 5%. German chamomile also has higher concentrations of apigenin and other sesquiterpenes. For this reason, German chamomile is the variety used in most research and most therapeutic products. If you’re buying chamomile specifically for its anti-inflammatory properties, look for “Matricaria chamomilla” or “German chamomile” on the label.
Tea, Topical, or Supplement
Chamomile tea is the most common and most studied form. Brewing loose dried flowers or tea bags in hot water extracts the water-soluble flavonoids, particularly apigenin glycosides. For stronger extraction, steep for at least five to ten minutes with a cover on the cup to trap volatile essential oils that would otherwise evaporate.
Topical chamomile preparations (creams, ointments, compresses) deliver anti-inflammatory compounds directly to the skin or mucous membranes. This form has a long history in European traditional medicine for treating skin irritation, minor wounds, and oral inflammation. The clinical trial data on mucositis and gum disease support this use.
Chamomile extract supplements offer higher concentrations of active compounds than tea, but the research base is thinner for standardized supplements compared to tea and topical applications. If you go this route, products standardized to apigenin content give you the best way to gauge potency.
Who Should Be Cautious
Chamomile belongs to the Asteraceae family, the same plant family as ragweed and mugwort. There is high cross-reactivity between chamomile and mugwort pollen, meaning people with mugwort allergies face a real risk of allergic reactions to chamomile, ranging from mild symptoms to anaphylaxis in rare cases. The cross-reactive protein involved is a defensin called Art v 1. If you have known allergies to ragweed, mugwort, chrysanthemums, or other daisy-family plants, chamomile may trigger symptoms. Some sensitized patients react even to conjunctival (eye) contact with chamomile extract, so this isn’t limited to ingestion.
Chamomile can also interact with blood-thinning medications due to its natural coumarin content, and its mild sedative effect may compound with sleep aids or anti-anxiety drugs.