Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to exfoliate for smooth even toned skin [title] Consider the pros of chemical exfoliators. [step] Chemical exfoliators include acids like, alpha hydroxy acid, and the enzymes found in papaya and pineapple. These products do not require a lot of effort, though they do require some.

Ending1: [substeps] The more acid a chemical has, the more pressure it can have on the skin. [title] Choose a bacteria free exfoliator. Ending2: [substeps] The american academy of dermatology recommends that exfoliating from the outset may be more labor intensive, but effective. If you're trying to polish your entire face, consider reshaping it with a plastic or glass-based exfoliator. Ending3: Before applying a peel, limit your sun exposure, moisturize, and avoid smoking. [substeps] One plus to chemical treatments is that they're less labor intensive. Ending4: [substeps] Alpha hydroxy acid can be applied to healthy, dead skin. These products work to exfoliate clean, thin, dry skin and smooth out a lot of oily skin.

Answer format: ending1/ending2/ending3/ending4