What is the purpose of PREP skin care?

The purpose of PREP skin care is to balance pH levels and enhance initial color development. This is crucial in the tanning process because maintaining a suitable pH level on the skin prepares it for better absorption of tanning products. When the skin's pH is balanced, it can more effectively interact with the active ingredients in tanning solutions, leading to more even and vibrant color development. This step is essential for achieving the desired tan, as it lays the foundation for how well the tanning agents will work on the skin.

Other options may have their own benefits but do not directly relate to the primary function of PREP skin care. Darkening skin tone relates to the effects of tanning products rather than preparation, while providing moisture after tanning focuses on post-care rather than the preparatory phase. Exfoliation is important for a smooth application, but it deals more with removing dead skin rather than preparing the skin in terms of pH balance and color enhancement.