The heatwave changes everything, including the way the skin reacts to care. Under the effect of heat, perspiration and more intense UV exposure, the skin barrier can become more fragile, more reactive, sometimes even deeply dehydrated despite the sensation of “oily skin”.
Result: usually very effective active ingredients can suddenly seem too powerful. Redness, tingling, tightness… Many people wonder whether they should suspend certain star skincare ingredients or simply adjust their use.
Should you stop taking retinol when it’s very hot?
Retinol is often the first active ingredient to be singled out during periods of extreme heat. And for good reason: it accelerates cell renewal, which can make the skin more sensitive to external aggressions, particularly UV rays.
But stopping it systematically is not always necessary. The good reflex is rather to reduce the frequency (2 to 3 times per week instead of daily use) and to apply it only in the evening, with enhanced hydration.
On the other hand, if the skin shows signs of irritation (persistent redness, burning sensations), a temporary break may be beneficial. The objective is not to “cut everything off”, but to let the skin regain its balance.
Are exfoliating acids (AHA/BHA) too harsh in summer?
AHAs (glycolic, lactic) and BHA (salicylic) are very popular for smoothing skin texture and unclogging pores. But during heatwaves, they can increase skin sensitivity, especially if they are used too frequently.
Heat naturally increases the permeability of the skin, which can make these exfoliants “stronger” than normal. Result: thinner skin, sometimes heated or prone to redness.
The solution is not necessarily to ban them, but to space them out. One or two uses per week are more than enough in summer, favoring gentle formulas and avoiding any combination with other irritating active ingredients on the same evening.
Vitamin C, niacinamide: active ingredients to keep or adapt?
Good news: not all assets need to be put aside. Vitamin C, for example, remains an excellent ally in summer thanks to its antioxidant action against free radicals generated by UV rays and pollution.
However, some sensitive skin may experience tingling if the concentration is too high. In this case, it may help to switch to a gentler formula or apply it every other day.
Niacinamide is particularly interesting during heat periods: it helps regulate sebum, soothe inflammation and strengthen the skin barrier. It is one of the rare active ingredients that can generally be kept without restriction, even in the middle of a heatwave.
Conclusion: adapt rather than delete
The key during hot weather is not to empty your skincare bathroom, but to adapt your routine intelligently. The skin does not necessarily need less care, but better dosed, more hydrating and less aggressive care.
Hydration, reinforced sun protection and listening to skin signals become priorities. Powerful active ingredients can remain in the routine provided they are used more sparingly.
FAQ – Heatwave and skincare
Should you stop taking retinol in summer?
No, unless there is irritation. It is recommended to reduce the frequency and moisturize the skin well.
Can you use AHA/BHA when it’s very hot?
Yes, but spaced out (1 to 2 times per week) to avoid sensitization.
Is vitamin C suitable for heatwaves?
Yes, it is even an excellent antioxidant active ingredient in summer, provided you choose a well-tolerated formula.
Which active ingredients to favor in case of high heat?
Niacinamide, hyaluronic acid and moisturizing/soothing treatments are most suitable.
Does skin become more sensitive in summer?
Yes, heat and UV weaken the skin barrier, making the skin more reactive to active ingredients.
