To prevent a chemical depilatory from seeping into unwanted areas, what product should be applied?

Applying a barrier cream is essential when using a chemical depilatory to ensure the product only affects the targeted hair and not the surrounding skin. Barrier creams create a protective layer on the skin, which helps prevent the chemical depilatory from seeping into areas where it could cause irritation or unwanted hair removal.

This protective layer is particularly crucial because chemical depilatories contain active ingredients that break down the protein structure of hair. If these chemicals come into contact with skin that is not meant to be treated, it can lead to chemical burns, irritation, or allergic reactions.

The other options, while they may offer benefits such as hydration or softness, do not provide the same level of protection as a barrier cream. Moisturizing lotions and creams are beneficial for skin health but do not serve the specific purpose of preventing chemical contact and are more likely to allow the depilatory to penetrate the skin. Wax is not a suitable choice in this context, as it is used for hair removal rather than as a protective barrier.