Serving size: An almond for face and neck, a blueberry for just the face

Too much face cream will leave your skin greasy and oily, rather than quenched. No need to rub between your palms before applying. Simply rub it into your skin until absorbed.

Serving size: A pea

Why: Serums are super concentrated products, so less is always more. King suggests simply tapping a tiny amount onto problem areas until absorbed into the skin.

Serving size: A blueberry

To avoid drying out the sensitive skin on your face, only apply a blueberry's worth of product to affected areas (the chin, nose or forehead) rather than the entire face.

Serving size: A rice grain per eye

Using too much product on the super sensitive skin around your eyes can cause irritation and puffiness -- the last thing you want. King suggests using your ring finger (the one with the gentlest touch) to dab the product from the outer corner in.

Serving size: A small red grape for a creamy product, blueberry for a gel product

This may seem like only enough for one cheek, but according to King, many of the physical scrubbers in exfoliants can be harsh on skin -- even if you're looking to slough of dead skin. These modest amounts are enough to get the job done.