Exfoliation is an important part of your skin care regime.
There are so many benefits with exfoliation. Primarily exfoliation helps to remove the dead skin cells on the outer surface of the skin, which stimulates the growth of new elastic fibres & collagen in the deep basal cell layer of the dermis. These new cells are plumper, firmer and have more moisture. Revealing newer skin underneath that has a healthy and radiant glow because it has not been exposed to the elements.
By exfoliating the top skin layers it also helps for better penetration of other treatments and skin products to get further into the skin so they can be more effective.
Most skin types need encouragement with exfoliation.
With oily skin, the oil tends to saturate the dead skin cells, which makes it difficult for these dead skin cells to fall naturally.
Dry skin tends to let dead skin cells accumulate to quickly, which can make skin look dry and dull.
Exfoliation will help remove blackheads, white heads and clogged pores, which can lead to acne.

Whether it is once or twice a week exfoliation needs to become an on going regular treatment and become part of your skincare regime to maintain the results and keep removing dead skin cells & clogged pores. Having many dead skin cells on your skin stops the production of new skin cells, which means that instead of your skin getting better it actually begins to worsen if the dead skin cells are not removed effectively.
You should be already applying sunscreen daily as part of your skincare regime, but it's important to be protecting the new skin.