Which product ingredient is known to increase skin sensitivity to the sun?

Retinol is known to increase skin sensitivity to the sun primarily due to its ability to promote cell turnover and exfoliation. When retinol is applied to the skin, it accelerates the shedding of old skin cells and stimulates the production of new cells. This process can lead to a thinner outer skin layer, which can make the skin more vulnerable to UV rays. As a result, individuals using retinol often experience heightened sensitivity, making them more prone to sunburn and the effects of sun exposure.

It is crucial for users of retinol to incorporate sun protection measures, such as wearing broad-spectrum sunscreen, to mitigate the risks associated with increased sun sensitivity. This understanding is vital in skincare routines, especially when retinol is included as a key ingredient for its anti-aging and skin-clearing benefits.