Is it beneficial to apply after-sun care following each sun exposure?

Similar to the synthesis of vitamin D, the sun provides numerous benefits for the human body. However, it should not be overused as the ultraviolet rays it emits can lead to irreversible damage to the skin and eyes, promote brown spots, skin sagging, erythema, and the development of melanomas. That's why it's essential to always use a sunscreen before exposing yourself to the sun and to reapply every two hours in case of prolonged exposure. However, this measure is not always enough to adequately protect the skin from UV rays that can cause a sunburn. Can after-sun then soothe it?

• In the event of a sunburn.

  When UVB rays penetrate the cells of the epidermis, they cause the deterioration of microRNAs. An inflammatory process involving the release of pro-inflammatory cytokines and the dilation of blood vessels then takes place, resulting at the macroscopic level in redness and swelling: this is commonly referred to as sunburn, or actinic erythema.

  When the skin is compromised, it requires the comfort and soothing that an after-sun product can provide. Its cool texture, combined with its richness in lipid-replenishing, healing, and anti-inflammatory active ingredients, makes it an essential in case of sunburn.The immediate application of an after-sun product thus helps to restore the skin's water balance, which is weakened following a sunburn, while promoting the skin regeneration process.

  Note : The application of an after-sun lotion will not be sufficient in the case of a significant burn and should be coupled with a topical medication such as a dermocorticoid.

• Without sunburn.

  Even without a sunburn, it is highly recommended to apply an after-sun product. Indeed, the damage caused by the sun is not only visible but also manifests itself through the weakening of the hydrolipidic film present on the skin's surface. Applying an after-sun product immediately after exposure helps to compensate for water loss and aids the skin in recovering more quickly. Moreover, this prevents the accumulation of damage, thereby reducing the risk of long-term problems. This holds true for both long exposures and those lasting one to two hours, as UV rays immediately affect the skin.

Applying an after-sun care product after each exposure is more than just a comfort step: it's a measure to protect, hydrate, and repair your skin.