Browse our collection of science & research — expert-written content you can trust.
Cats, dogs and birds react to essential oils differently from us. Here is what vets and the ASPCA say, and how to keep any bottle well out of their reach.
A rash on day three is not a sting in minutes. Learn the two kinds of skin reaction to oils, why freshness matters and what to do if one happens.
Manuka oil shows up in lab studies on acne-related bacteria, yet breakouts happen in skin, not a dish. We explain the gap and who to ask first.
Two New Zealand trials tested oil-based creams on eczema, one kanuka and one manuka. Here is what each found and why a clinician comes first.
Stinging, irritation or allergy? Learn which kind of sensitive you are, why scented products draw attention, and how to patch test a diluted blend.
For a minor cut it is water, pressure and a clean cover. We walk through the NHS steps, the tetanus check, and where manuka oil does not belong.
Lab dishes show manuka oil acting on herpes simplex virus, but a cold sore lives in skin. We explain the gap and who to ask when one appears.
Nails grow slowly and many things mimic fungus. What the NHS, CDC and Cochrane say about toenails, and why a diagnosis comes before any oil.
Athlete's foot thrives in warm, damp shoes. Here is what health services advise, what tea tree trials showed, and where a scent oil fits in.
Where is the rash? The CDC says that decides treatment. Ringworm, why steroid creams are out, and what lab studies of oils can and cannot tell you.
A flaky scalp has a well-trodden route to relief. We walk through the shampoos dermatologists name, one tea tree trial, and manuka oil's place.
Head lice have a clear routine: a good comb, a pharmacist and patience. We cover the NHS and CDC advice and where manuka oil does and does not fit.
Plenty of blogs link manuka oil and hair, but the research is thin. We cover the nearby studies, the dermatologist-first advice, and manuka as scent.
The weedkiller myth, the East Cape chemistry and the lab-dish studies: how to read manuka research and know what it actually tested, in plain English.
One drop in a cup of liquid sounds tiny, but lab MIC numbers say little about skin. Learn the five questions that decide what a manuka study really shows.
Warm, honeyed, a little earthy and slow to fade. Why manuka smells deeper than tea tree, and how to get to know it and find a good blending partner.
Triketone percentages vary from under 1% to over 20% in the literature. We explain what is being counted and how to read a number on a manuka oil label.
Manuka was a roof, a broom, a comb and a scented rub long before anyone distilled it. Here is its story, from Māori records to modern chemistry.
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