Lemongrass for Body Odour: The Science Behind It

Body odour is not caused by sweat. Sweat itself is almost odourless.

The smell comes from bacteria on the skin that break down sweat into acids. The more bacteria, the stronger the odour. This is why the most effective natural deodorants don't just mask smell — they target the bacteria that cause it.

Lemongrass essential oil does exactly that. And the science behind it is fascinating.

What is lemongrass?

Lemongrass (Cymbopogon citratus) is a tropical grass native to South and Southeast Asia. Its essential oil is steam-distilled from the leaves and has been used for centuries in traditional medicine across Asia, Africa, and South America — for everything from fever and infections to skin care and insect repellent.

Its scent is bright, citrusy, and clean — unmistakably fresh without being sweet or heavy.

The science: why lemongrass works against body odour

Lemongrass essential oil is rich in two key compounds: citral and geraniol. Both have been extensively studied for their antimicrobial properties.

Research has shown that lemongrass essential oil is effective against a wide range of bacteria, including Staphylococcus epidermidis and Corynebacterium species — the exact bacteria most responsible for body odour. These bacteria thrive in warm, moist environments like the underarm, where they break down sweat compounds into the volatile acids that cause smell.

By inhibiting the growth of these bacteria, lemongrass essential oil addresses body odour at its source — not by blocking sweat, but by creating an environment where odour-causing bacteria struggle to thrive.

This is fundamentally different from how conventional deodorants work. Most antiperspirants use aluminium salts to physically block sweat glands. Natural deodorants that work with lemongrass instead work with the body — letting it sweat naturally while keeping odour under control.

Lemongrass and skin

Beyond its antimicrobial properties, lemongrass essential oil also has:

• Astringent properties — it gently tightens pores, which can help reduce the amount of sweat reaching the skin surface
• Anti-inflammatory qualities — soothing for skin that is prone to irritation
• Antifungal activity — useful in warm, humid environments where fungal growth can also contribute to odour
• A naturally uplifting scent — bright and energising without being overpowering

How we use lemongrass at True Organic of Sweden

Lemongrass essential oil is one of the key active ingredients in our Undercover Agent natural deodorant. We use it alongside certified organic potassium alum — a naturally occurring mineral salt with powerful antimicrobial properties — and triethyl citrate, which helps neutralise odour at a molecular level.

Together, these ingredients create a formula that genuinely works. Not by blocking your body's natural processes, but by working alongside them.

👉 Shop Undercover Agent Natural Deodorant

If you're looking for a complete natural routine, our Organic Skincare Duo pairs beautifully with Undercover Agent for a full body and face routine made entirely from certified organic ingredients.

Does lemongrass work for everyone?

For most people, yes. Lemongrass essential oil is well-tolerated by most skin types. However, as with any essential oil, a small number of people may experience sensitivity — particularly those with very reactive skin. If you are new to natural deodorants, we always recommend a patch test first.

It is also worth noting that switching from a conventional antiperspirant to a natural deodorant takes a short adjustment period — usually 2-4 weeks — as your skin recalibrates. This is completely normal and temporary.

FAQ

Does lemongrass actually stop body odour?
Yes — lemongrass essential oil has proven antimicrobial properties against the bacteria that cause body odour. It works by inhibiting bacterial growth rather than blocking sweat.

Is lemongrass safe for sensitive skin?
Generally yes, though as with any essential oil, patch testing is recommended for very sensitive skin types.

What is the difference between a deodorant and an antiperspirant?
A deodorant controls odour. An antiperspirant blocks sweat using aluminium salts. Our Undercover Agent is a deodorant — it lets your body sweat naturally while keeping odour under control.

Does natural deodorant really work?
Yes — when formulated with the right active ingredients. Lemongrass, potassium alum, and triethyl citrate together create a genuinely effective formula that thousands of our customers rely on every day.

How long does it take to adjust to natural deodorant?
Most people find the adjustment period is 2-4 weeks. During this time your skin is recalibrating after years of antiperspirant use. Stick with it — it is worth it.