Sometimes the best look is a toned down one, and for these celebrities, it took them a few years before they realized that over-tanning, multicolored hair, and loud makeup was actually making them look worse. Pamela Anderson, Blac Chyna, and Nicole Polizzi all underwent drastic transformations — and they look a lot better for it!

Snooki began to ditch her signature Jersey Shore look after she gave birth to her first child Lorenzo, and continued to tone things down after having her second child, Giovanna. Now, the former party girl looks a lot more put together — even with her lip fillers and boob job, the 29-year-old looks way more polished than she did 2010.

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Her entire transformation started with a lifestyle change involving her health.

"At this point it's not about losing weight. It's about staying fit and healthy," she has said. "I love my vegetables, so I eat veggies everyday – broccoli , asparagus, green beans. I also love to eat grilled chicken, and gluten-free chicken wraps. Salads are also my favorite, especially with chicken and protein."

Check out the photos to see stars' most shocking makeunders.