Switching to natural deodorant: what your body really goes through

Transition vers un déodorant naturel : ce que votre corps vit réellement

How the Body Reacts When Switching from Commercial to Natural Handcrafted Deodorant

Article written to the best of our knowledge, based on recognized scientific and dermatological sources. This content is for informational purposes only and does not replace professional medical advice.

Summary

When switching from a commercial deodorant (often an antiperspirant based on aluminum salts), the body undergoes a normal adjustment period: perspiration increases, odors may be stronger, then the skin microbiome gradually rebalances. After a few weeks, the natural handcrafted deodorant functions in a more stable and body-friendly context.

1. Why does the transition exist?

Many commercial deodorants are actually antiperspirants. They contain aluminum salts that react with sweat to form "plugs" in the sweat glands, thereby reducing the amount of sweat that reaches the skin's surface[1]. Perspiration, which is essential for thermoregulation, is temporarily blocked.

When these products are discontinued, these plugs gradually dissolve and the sweat glands resume their normal activity. The body therefore has to "relearn" how to sweat, which explains the transition period.

2. What actually happens in the body

2.1. Temporary increase in perspiration

After discontinuing an antiperspirant, it is common to observe a temporary increase in perspiration. Sweat glands, which have been partially obstructed for a long time, begin to function fully again. This phase can last from a few days to a few weeks, depending on the individual[2].

2.2. Stronger odors initially

Sweat itself is almost odorless. It is the bacteria present on the skin that transform certain components of sweat into odor molecules. In the armpits, bacteria of the genera Corynebacterium and Staphylococcus are notably found[3].

When an antiperspirant is discontinued, the skin microbiome changes: certain bacterial populations temporarily increase, which can lead to more noticeable odors before the balance is restored.

2.3. Rebalancing of the skin microbiome

Recent studies show that regular use of antiperspirants and deodorants alters the composition of the armpit microbiome[3]. When switching products, especially to a natural deodorant, the microbiome reorganizes: some bacteria decrease, others increase, until a new balance is reached.

This rebalancing phase explains why body odor can vary (sometimes surprisingly) for a few weeks.

2.4. Temporary skin sensitivity

The return to normal perspiration can make the skin of the armpits more sensitive for a short period of time. The combination of sweat + friction + product change can cause redness or discomfort in some people, especially if the skin is already reactive.

3. The myth of "armpit detox"

The term "armpit detox" is often used when switching to a natural deodorant. Scientifically, this term is misleading. Available studies do not show that armpits "eliminate specific toxins" after stopping aluminum[4].

What is actually observed is:

  • The dissolution of aluminum plugs in the sweat glands.
  • An increase in perspiration linked to the return to normal functioning.
  • A change in the skin microbiome, with variations in odor.

It is therefore a physiological adaptation phase, and not a "toxin cleansing" in the strict sense.

4. How does a natural handcrafted deodorant work?

A natural handcrafted deodorant does not aim to block perspiration, but to manage odors and sometimes moisture. Depending on the formulation, it can:

  • Limit bacterial proliferation responsible for odors (for example, thanks to sodium bicarbonate, zinc, magnesium or certain plant extracts).
  • Absorb some moisture (arrowroot, clays, starch, etc.).
  • Provide a light fragrance via essential oils or natural fragrances.

Perspiration remains possible, which respects the body's natural function, but odors are better controlled once the microbiome has stabilized.

5. What to expect during the transition?

5.1. Average duration

Most people experience a transition phase of 2 to 5 weeks, with varying intensity depending on skin type, perspiration level, and lifestyle habits[2].

5.2. Typical timeline

  • Week 1: aluminum plugs begin to dissolve, perspiration increases slightly.
  • Week 2: often the most intense phase: more sweat, stronger odors, microbiome imbalance.
  • Week 3: the situation begins to stabilize, odors gradually decrease.
  • Week 4: the microbiome is more balanced, natural deodorant becomes more effective.
  • Week 5: new "normal" with natural perspiration and better controlled odors.

6. Tips for facilitating the transition

  • Gentle cleansing: use a mild soap (possibly a light antibacterial one) to reduce bacterial proliferation without irritating the skin.
  • Gentle exfoliation: gentle exfoliation 1 to 2 times a week can help remove old product residues and dead skin cells.
  • Choose breathable fabrics: cotton, linen, and natural fibers allow for better sweat evaporation.
  • Apply handcrafted deodorant regularly: initially, applying it in the morning and possibly touching up during the day can be helpful.
  • Observe your skin: in case of significant redness or persistent irritation, it is recommended to consult a healthcare professional.

7. What science says

7.1. Points supported by scientific data

  • Aluminum salts