Research
The evidence library: what scientific studies say about Nigella sativa, thymoquinone, carvacrol and more.
Topic hubs
Nigella sativa
Nigella sativa, also called black cumin, is the plant whose seeds produce black seed oil. This hub gathers our coverage of its research.
Thymoquinone
The main bioactive compound in black seed oil.
Carvacrol
The dominant active compound in oregano oil.
Black Seed Oil Research
Studies on black seed oil in human, animal and laboratory settings.
Oregano Oil Research
Studies on oregano oil and its essential oil compounds.
Oregano + Black Seed Oil Research
Research relevant to using oregano oil and black seed oil together.
Start here: Oil of Oregano With Black Seed Oil
Nigella sativa
Nigella sativa
Nigella Sativa: Research Overview of Black Seed
The plant, the compounds and where the evidence is strongest.
Nigella sativa
Black Cumin and Cancer: What Lab and Animal Research Shows
Headlines about 'black cumin and cancer' often overstate early lab findings. Here's a grounded look at the actual research.
Nigella sativa
Nigella Sativa Safety and Toxicity: What the Research Says
Black seed oil is generally well-tolerated in studies, but it isn't risk-free for everyone. Here's what the safety research shows.
Thymoquinone
Carvacrol
Carvacrol
What Is Carvacrol in Oregano Oil?
Meet carvacrol — the compound behind oregano oil's reputation.
Carvacrol
Oregano Oil and Candida: A Review of the Studies
Lab studies on oregano oil and Candida are promising but limited. Here's a closer look at what's actually been tested.
Carvacrol
Carvacrol vs. Thymol: What's the Difference?
These two closely related compounds are often discussed together. Here's what actually sets them apart.
Black Seed Oil
Black Seed Oil
Black Seed Oil and the Immune System: Research Review
Immune cells, inflammation and antioxidant defences in the studies.
Black Seed Oil
Black Seed Oil Clinical Trials: A Summary by Condition
Here's an organized look at what human clinical trials have actually tested black seed oil for, condition by condition.
Oregano Oil
Oregano Oil
Is Oregano Oil a Natural Antibiotic? What the Research Shows
Strong antimicrobial lab data, limited human evidence.
Oregano Oil
Antifungal Herbs: What Natural Compounds Show Activity Against Yeast?
Several herbs show antifungal activity in lab studies. Here's an overview, with a closer look at oregano oil's role.
Oregano Oil
Oregano Oil Human Studies: What Research Actually Exists?
Oregano oil's reputation rests heavily on lab studies. Here's what's actually been tested directly in people.
Antidote Supplements
Black Seed + Oregano