Freckles occur when the skin is exposed to sun exposure An aesthetic doctor and beauty expert has warned against social media trends that are seeing people try to bleach freckles off their skin using household products such as lemon, toothpaste and Vaseline. Sun exposure can cause pockets of dark brown spots to form on our skin as a result of hyperpigmentation, usually found in people with fairer complexions. And while they're.

.. Kelby McNally.