The duration for a tan to fade can vary depending on various factors, such as the individual's skin type, sun exposure, and skincare routine. Typically, a tan will start to fade within one to two weeks if there is no additional sun exposure. However, if the skin is continuously exposed to the sun, the tan can last longer.
The outermost layer of the skin, the epidermis, is where the tan occurs. As the skin naturally sheds dead cells, the tan gradually fades. This process usually takes around 28 to 30 days for the skin to completely renew itself.
It's important to note that excessive sun exposure can cause long-term damage to the skin, including premature aging and an increased risk of skin cancer. To maintain healthy skin, it's recommended to protect yourself from the sun by wearing sunscreen, protective clothing, and seeking shade when the sun is at its peak.