In recent years, natural deodorants have become increasingly popular, thanks to a growing awareness of ingredients like aluminium and a desire for more skin-friendly options. But do they actually work? And if you’re new to the world of natural deodorants—or have sensitive skin—how do you pick one that fits your pits? 

Below, we’ll tackle some of the most common FAQs about natural deodorants and help you decide whether you might prefer magnesium or bi-carb (baking soda) formulas.

1. Why does our sweat smell?

Guess what... sweat itself is basically odourless. It’s the bacteria hanging out in warm, damp spots like your armpits that cause that BO. When these bacteria break down the proteins in your sweat, they release those smelly scents we’re desperately trying to avoid. 

This means that if you can get rid of the bacteria, you get rid of the BO!  That’s why many people turn to natural deodorants or aluminium-free deodorants: they focus on neutralising these bacteria (the source of the smell), rather than blocking sweat glands altogether.

2. Do Natural Deodorants Really Work?

Yes! Unlike conventional antiperspirants that contain aluminium (which blocks sweat ducts to reduce sweating), natural deodorants work by targetting bacteria that cause smell, neutralising any odour rather than blocking sweat. They use ingredients like magnesium hydroxide, bi-carb, arrowroot powder, and plant-based oils to absorb moisture and prevent the bacteria responsible for body odour from thriving. 

3. What’s Wrong with Aluminum in Conventional Deodorants?

Aluminium compounds are the active ingredients in antiperspirants that block sweat glands, reducing underarm moisture. This prevents sweating (the only way our body can cool itself down) but also interferes with the body’s natural detoxification process.

While clinical studies have not definitively proven that aluminium causes serious health conditions, many people prefer to avoid it due to concerns about:

• Possible skin irritation
• The preference to let the body sweat naturally
• Concerns about potential links to health issues

4. Bicarb vs. Magnesium in Natural Deodorant: What’s the Difference

Both bi-carb and magnesium hydroxide are commonly used in deodorants as they are effective at controlling odour (without aluminium), but they work in slightly different ways.

The main difference lies in pH levels: bicarb (baking soda) can be more alkaline, which sometimes leads to irritation for sensitive skin, while magnesium tends to be gentler and maintains a closer-to-neutral pH.

Despite this key difference, both ingredients neutralise bacteria that cause odour, helping you stay fresh without blocking your body’s natural sweating process. If you’re new to baking soda deodorant or magnesium deodorant, consider your skin’s sensitivity, and remember that either option can effectively tackle odour without relying on aluminium.

5. I’m Super Sensitive—Which Natural Deodorant is Best for Me?

If you have very sensitive skin, you might consider a baking soda-free deodorant, such as one formulated with magnesium hydroxide. Baking soda (sodium bicarbonate) can sometimes cause irritation for those with a delicate skin barrier because it has a higher pH level that doesn’t always mesh well with sensitive underarms.

• Magnesium Deodorant: Typically gentler on sensitive skin, helps maintain a neutral pH, and effectively combats odor-causing bacteria. See
• Bi-Carb (Baking Soda) Deodorant: Highly effective at odour control, but some people find it irritating if used in high concentrations.

Tip: Look for additional skin-soothing ingredients such as shea butter, jojoba oil or candelilla wax to further reduce the likelihood of irritation.

6. Does Natural Deodorant Stop Sweating?

No, but that is a good thing. I know I know, but hear me out! Sweating is a crucial part of your thermoregulation - meaning it helps you cool down when you are too hot. It also plays a minor role in flushing out certain waste products from the body. In short, it’s one of our body’s most important  natural cooling and detox mechanisms.

While natural deodorants won’t stop sweat like antiperspirants, they do help absorb moisture and prevent odour naturally, so you stay fresh without interfering with your body’s processes.

7. Will I Go Through a Detox When Switching to Natural Deodorant?

Some people experience a short transition period when switching from antiperspirants to natural deodorants. This is because your sweat glands may begin to function more actively after being blocked for so long. It’s normal to notice increased sweating or odour in the first couple of weeks, but this balances out as your body adjusts.

So don’t worry—this is normal and temporary. Some people like to do an “armpit detox” using gentle clay masks or exfoliants to speed up this adjustment. You can find some natural options here.

8. Making the Right Choice for You

Choosing the right natural deodorant depends on your unique body chemistry, sensitivity, and lifestyle. Consider these:

1. Skin Sensitivity:

   • Sensitive skin? Go for magnesium-based, baking soda-free deodorant like the ones here

   • Normal skin? Bi-carb and magnesium deodorants are strong deodorisers, so simply pick the scent you love!

2. Lifestyle and Sweat Levels:

• • If you work out regularly or sweat heavily, you may need a formula with extra baking soda for extra odour protection. You can find the ones we love here.

3. Fragrance Preferences:

• • Prefer unscented? Go for an unscented deodorant or minimal essential oils.

  • Love a natural scent? The sky is the limit. Pick any you like!

A Clean Switch for Happy Armpits

Natural deodorants have come a long way—from their humble origins using just baking soda (remember these white armpits hahaha) to more sophisticated formulas with magnesium hydroxide, gentle oils, and soothing botanical extracts. They’re a great option if you want to steer clear of aluminium, support your skin health, and still keep odours under control.

And remember, whether you’re on a journey toward cleaner beauty or simply exploring natural alternatives, don’t be discouraged by a brief transition period. Your underarms (and body) will thank you for the gentler, healthier approach in the long run!

Lots of love from a 10+ year natural deodorant user, 

Ellie x