What is Manuka Oil?
Manuka oil is derived from the leaves and branches of the Manuka tree (Leptospermum scoparium), a hardy shrub that grows wild across New Zealand’s rugged terrain. The oil is gently extracted through steam distillation, resulting in a clean, multipurpose remedy.
It is present in several topical formulations and sold globally. In 2024, sales from Manuka oil generated over USD 1.8 billion. This revenue is projected to reach USD 3.2 billion by 2033.
But what’s special about Manuka oil, and why are more people using Manuka-based products? Manuka oil’s origin, benefits, uses, and scientific background all reveal why it’s becoming increasingly popular.
Where does Manuka Oil come from?
Long before science caught on, the indigenous Māori people of New Zealand turned to the Manuka tree for its healing properties. They brewed the leaves into teas to ease colds and fevers, and used crushed parts of the plant to treat wounds and skin irritations.
What's the science behind Manuka Oil?
Today, we know that Manuka oil is rich in compounds called β-triketones (like leptospermone, isoleptospermone, and flavesone) that give it antibacterial, antifungal, anti-inflammatory and antiviral strength.
Over 1000 peer-reviewed publications on PubMed, Science Direct, Research gate and other platforms confirm this.
For example, a 2020 systematic review of literature including unpublished information strongly establishes Manuka oil's antimicrobial, anti-inflammatory, and antifungal effects.
Several comparative studies with essential oils like Tea tree oil and Kunzea oil show that Manuka oil demonstrates greater activity in inhibiting fungal growth. It's also more effective against Gram positive bacteria (like Staphylococcus aureus, a major cause of skin infections) and scabies.
Another study revealed that 20% Manuka oil mouth rinse worked just as well as chlorhexidine, a hospital-grade antiseptic, to combat notable microorganisms (Streptococcus mitis and Streptococcus sanguinis) that cause oral infections.
Manuka oil also demonstrated antiviral effects against herpes viruses (HSV‑1 and HSV‑2) and potential scabicide activity. Its triketones reduced inflammation markers linked to skin problems.
