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With October finally here, leaves are starting to drop — and so are Amazon prices.

The mega-retailer is heralding the start of fall with its annual Prime Big Deal Days sale , bringing Prime Day-like discounts across categories. Page six's picks

And while the tech and clothing deals certainly aren’t to be missed, some of our overall favorites come from the beauty department. Below, shop a selection of celeb-approved must-haves, from Sarah Jessica Parker’s lip-plumping secret to Bethenny Frankel’s “richest” drugstore serum.

Crest 3D Whitestrips

Score smile-worthy deals on Crest Whitestrips, a favorite among shoppers, celebs and editors.

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