Temperatures are soaring, transport is overheated and your t-shirts are showing the slightest halo: the heatwave is here. For those who sweat a lot, each journey becomes a calculation between comfort, odors and stains under the arms.
However, sweating remains a vital mechanism for thermoregulation and elimination of toxins. We can produce on average one liter of sweat per day, and up to ten liters during exercise, in extreme heat or in cases of excessive sweating. When the degrees rise, this flow explodes and classic deodorants quickly show their limits, hence the interest in more targeted solutions like the Dermafresh Ipersudor roll-on.
Heatwave, perspiration and excessive sweating: the uncomfortable trio
Under the arms, the skin does not behave like it does elsewhere. , explains Marie Drago, doctor of pharmacy and founder of the Gallinée brand, interviewed by Femina. This ideal terrain becomes even more active when the outside temperature rises.
Another key point is that it’s not the drops of sweat that smell bad. , specifies Juliette Lailler, co-founder of Krème. During heatwaves, heat and humidity feed these bacteria, which explains more stubborn odors despite showers.
Dermafresh Ipersudor: an antiperspirant targeted for excessive sweating
A classic deodorant mainly limits odors and absorbs a little moisture. An antiperspirant works further by temporarily blocking part of the flow of sweat with aluminum salts, which aggregate with sweat proteins and clog the pores of the sweat glands. Deperspirants, based on aluminum chloride hexahydrate, form an even more lasting plug, two to five days, for the most marked hyperhidrosis.
Aluminum salts have been discussed, but the European Scientific Committee for Consumer Safety (CSSC) issued a report in 2020 attesting to their very low skin absorption, including on shaved or depilated skin, ruling out any toxic effects. In this context, the Dermafresh Ipersudor roll-on, designed for hyperhidrosis, helps regulate perspiration by acting on the sweat glands, protects and moisturizes the skin, leaves a discreet fragrance, promises up to 72 hours of effectiveness, is dermatologically tested, formulated without alcohol, does not leave marks on clothing and can be found around $10.62 on the Internet.
Use your deodorant correctly in a heatwave and look at the composition
To take full advantage of an antiperspirant like Dermafresh Ipersudor, the ideal is to apply it in the evening, to clean, perfectly dry and non-irritated skin, so that the active ingredients attach well to the sweat ducts. As these formulas are not completely eliminated by showering, using them every other day is often enough; in case of reactive skin, spacing out further limits friction and therefore redness.
Because basically, by reducing the flow of sweat, too frequent use can irritate. For those who prefer to avoid aluminum salts, Yuka helps identify deodorants based on triethyl citrate, zinc derivatives or prebiotics. , further indicates Juliette Lailler. These natural options manage odors very well, but do less to stop large amounts of sweat than a strong antiperspirant.
Is it dangerous to block sweat with an antiperspirant?
The CSSC data indicate very low skin absorption of aluminum salts, with no demonstrated toxicity at usual doses, especially in a limited area such as the armpits.
Can we use Dermafresh Ipersudor every day during a heatwave?
Like other long-lasting antiperspirants, it can be applied in the evening, but use every other day on healthy skin is often sufficient to control excessive sweating.
What should I do if my skin reacts to antiperspirant?
It is better to stop for a few days, moisturize the area, then resume more gradually or turn to alcohol-free and more natural formulas; in the event of persistent discomfort, medical advice is preferable.
