Switching to Natural Deodorant: What to Expect

When you switch from an antiperspirant to a natural deodorant, expect to sweat more, because deodorants don't block sweat the way aluminum-based antiperspirants do, and you may notice stronger odor at first while your underarm bacteria adjust. Cleveland Clinic says your body needs time to adjust, though it gives no fixed timeline, so patience and good basic hygiene help.

Whether you're drawn to simpler ingredients or simply curious, here's what actually changes when you make the switch, what research says about your underarm bacteria and about aluminum, and how to make the transition smoother.

Deodorant vs. antiperspirant: the key difference

The two are often lumped together, but they do different jobs. According to Cleveland Clinic, antiperspirants reduce sweat, while deodorants don't. Both can reduce body odor.

• Antiperspirants contain aluminum salts, which "restrict access to the upper part of the sweat gland," explains Cleveland Clinic dermatology specialist Lauren Zamborsky, CNP. They're regulated by the FDA.
• Deodorants contain no aluminum. They use ingredients such as baking soda and alcohol to neutralize odor-causing bacteria, and fragrances to mask smell. They aren't FDA-regulated.

What to expect when you switch to natural deodorant

You'll sweat more

This is the biggest change, and it's simply because deodorant isn't designed to stop sweat. Zamborsky's summary of antiperspirants explains the flip side: "Less sweat means less bacteria, which means less odor."

Odor may be stronger at first

Cleveland Clinic notes that switching deodorants can change the amount and type of bacteria under your arms, so body odor may be stronger at first. Research it cites found fewer Staphylococci microbes in people who used regular antiperspirant or deodorant, and more in those who avoided sweat-blocking antiperspirants. The article says your body needs time to adjust, but doesn't give a specific length of time.

A small 2014 study from Ghent University offers a closer look. Nine healthy people stopped using deodorant or antiperspirant for a month. Their underarm bacteria stayed stable with daily product use and with no product use, but shifted clearly whenever they changed habits. Antiperspirant use was linked to more Actinobacteria, which the authors called "an unfavorable situation with respect to body odor development." It was a tiny study, but it fits the idea that your underarms settle into a new balance after a switch.

You may hear about "armpit detoxes"

Many people switching to natural deodorant try underarm masks made with clay, charcoal, apple cider vinegar or similar ingredients, claiming they help natural deodorant work better. Cleveland Clinic dermatologist Dr. Amy Kassouf is direct: "There are no scientifically proven reasons to do a detox." She notes that your liver, kidneys and normal body processes already handle that job. Too much or overly concentrated clay or vinegar can also irritate skin.

What about aluminum and health?

Concern about aluminum is a common reason people switch, so it's worth knowing what the research says. The National Cancer Institute states that "no scientific evidence links the use of these products to the development of breast cancer," noting that study results have been mixed and additional research would be needed to determine whether any relationship exists. A 2014 review found no clear evidence that aluminum-containing antiperspirants raise breast cancer risk. Cleveland Clinic's Zamborsky agrees that "research hasn't proven that aluminum can cause breast cancer," and Dr. Kassouf notes that many studies show no link.

The American Academy of Dermatology (AAD) addresses Alzheimer's disease too: "Research hasn't found this to be true." It notes the Alzheimer's Association no longer believes everyday sources of aluminum, like antiperspirants, can cause Alzheimer's.

On parabens, the NCI says they have been found in breast tumors, but "there is no evidence that they cause breast cancer," and most U.S. deodorants and antiperspirants don't currently contain them. If you have concerns about your own risk, talk with your doctor.

The takeaway: choosing a natural deodorant is a personal preference, not a health requirement. As Zamborsky puts it, "It completely depends on your goals."

How to switch to natural deodorant

1. Apply to clean, dry skin. Zamborsky notes that applying products right after shaving can cause a rash or irritant contact dermatitis.
2. Patch-test first. Try a new deodorant on a small area before committing.
3. Watch for irritation. Either type of product can irritate skin, especially formulas with perfumes or dyes. If your skin is sensitive, check ingredient lists for common irritants and consider a fragrance-free option.
4. Shower after workouts to remove sweat and bacteria, and keep skin folds clean and dry.
5. Wash gently. Dr. Kassouf recommends a gentle, foaming cleanser to remove product residue. "Mostly good skin care is all that is needed," she says.
6. Notice your diet. Some food compounds pass into sweat and can change how it smells.
7. Reapply as needed. Since deodorant doesn't stop sweat, you may want to reapply later in the day.

What to look for when buying a natural deodorant

• "Deodorant," not "antiperspirant," if you want aluminum-free; antiperspirants are the products that contain aluminum salts.
• "Fragrance-free" rather than "unscented" if your skin is sensitive. The AAD explains that "unscented" products can contain chemicals that neutralize or hide other odors, which can irritate.
• An ingredient list you can check for anything that has irritated you before, such as perfumes or dyes.
• A format you'll reapply, such as a roll-on or stick, since you may need a midday top-up.

Our natural deodorant collection gathers aluminum-free options. Natural Embrace Unscented Roll-on Deodorant is listed as fragrance-free, with organic aloe and prebiotics. For sensitive skin, see our sensitive skin edit, and read how we review ingredients on our standards page. Curious about other approaches? We cover aluminum-free deodorant and magnesium spray separately.

Who should skip it or be careful

• Heavy sweaters. If you sweat heavily and natural deodorant isn't enough, a doctor can discuss options such as clinical-strength antiperspirants. The AAD notes non-prescription antiperspirants only help mild excessive sweating, and that antiperspirants work best applied to dry skin at bedtime.
• Sensitive or recently shaved skin. Wait before applying, and choose fragrance-free formulas.
• Anyone with a sudden change. Cleveland Clinic advises seeing a healthcare provider if you notice a sudden, significant change in how much you sweat or how you smell, since conditions such as diabetes, infections and thyroid disorders can affect sweating.

FAQ

Why do I smell more after switching to natural deodorant?

Switching can change the amount and type of bacteria under your arms, so odor may be stronger at first, according to Cleveland Clinic. A small 2014 study found underarm bacteria shifted whenever people changed their habits. Natural deodorants also don't reduce sweat, so showering after workouts and reapplying can help.

How long does it take to adjust to natural deodorant?

Cleveland Clinic says your body needs time to adjust but doesn't give a specific timeline. In a small 2014 study, underarm bacteria were stable both with daily product use and during a month without products, but shifted when habits changed. Good hygiene, clean dry skin and patience are your best tools while you adjust.

Do I need an armpit detox?

No. Cleveland Clinic dermatologist Dr. Amy Kassouf says there are no scientifically proven reasons to do one, because your liver, kidneys and normal body processes already handle that job. Overly concentrated clay or vinegar masks can also irritate skin. A gentle cleanser is usually all you need.

Does antiperspirant cause breast cancer?

The National Cancer Institute says no scientific evidence links antiperspirants or deodorants to breast cancer, though study results have been mixed and more research would be needed to rule out any relationship. The AAD cites the American Cancer Society as finding no clear link. Talk to your doctor if you have concerns about your risk.

Can aluminum in antiperspirant cause Alzheimer's disease?

According to the AAD, research hasn't found that to be true. It notes that the Alzheimer's Association no longer believes everyday sources of aluminum, such as antiperspirants, can cause Alzheimer's disease. Choosing a natural deodorant is a matter of preference rather than a health requirement.

Does natural deodorant actually stop sweat?

No. Deodorants target odor-causing bacteria and mask smell, while only antiperspirants, which contain aluminum salts, reduce sweat, according to Cleveland Clinic. If staying dry matters more to you than avoiding aluminum, an antiperspirant may suit you better, and that's a perfectly reasonable choice.

Sources

• Cleveland Clinic: Antiperspirant vs. Deodorant: What's the Difference?
• Cleveland Clinic: Armpit Detox: Does It Really Work?
• National Cancer Institute: Antiperspirants/Deodorants and Breast Cancer
• American Academy of Dermatology: Hyperhidrosis: Diagnosis and treatment
• American Academy of Dermatology: Dermatologists' tips for relieving dry skin
• Callewaert C, et al. Deodorants and antiperspirants affect the axillary bacterial community. Arch Dermatol Res, 2014 (PubMed)

This guide is general information, not medical advice. Patch-test new products and ask a dermatologist or doctor about skin or health concerns.