It's every woman's fantasy: Pop a magical pill for prettier skin, healthier hair and longer nails. And that's exactly what the new generation of beauty supplements promises. But can a vitamin do anything that your beauty products can't?

"You can only absorb so much through the outside," says naturopathic doctor Taryn Forrelli, Vice President of Innovation at Olly. Your skin care and hair products can't make up for a lackluster diet -- but beauty supplements can.

Whether it's our crazy schedules or vegan-gluten-free-paleo diets, one thing is certain: Many of us just aren't getting the nutrients we need for the gorgeous skin, hair and nails we want, says Forrelli. "To get all the basic vitamins and minerals, just for baseline function, you would need to consume at least nine servings of fruit and vegetables a day," she explains. "Only about 10 percent of people are actually getting that amount. So for the rest of us, that's where a multivitamin and beauty supplements can help fill in the gaps."

Still, with so many beauty supplements out there claiming to make hair longer, nails stronger and skin glowier, it can all start to sound like B.S. -- especially because supplements aren't regulated by the FDA. So, where do you start?

"Just like every other organ in your body, your skin, hair and nails need to start with a solid nutritional base for those cells to be healthy and strong," says Forrelli. Once you do, your hair, skin and nail health will reflect that."

While beauty supplements seem like a fast-pass for beauty, Forrelli says results are anything but immediate. Expect to wait four to six months to see a difference --especially in hair and nails.

If you have the patience, these 16 beauty supplements might just give you perfect skin, bouncy hair and hand-model hands -- it's as easy as popping a pill.

Image via Imaxtree

When it comes to a beauty supplement, this all-natural superfood mix is basically a nutritional gold mine. If you're seeking to improve your skin's general condition (think: smooth, moisturized, even skin), then this beauty supplement may just be your perfect match.

The product contains a powerful mix of antioxidants, probiotics, and fiber -- all derived from anti-aging plant sources like wheatgrass, barley grass and acai powder (among many more). While the supplement may be packed full of leafy greens, it certainly doesn't taste like it. The mint chocolate flavor is subtle enough that you can add it to smoothies, coffee, almond milk or whatever concoction your heart desires.

The bonus? The superfood blend not only gives you radiant skin from the inside out, it's also designed to increase your metabolism and energy throughout the day so you can burn fat and skip the afternoon coffee.

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This vegan plant protein is designed to kick-start your metabolism and nourish your body so all your beauty needs are met. This beauty supplement contains ingredients like green tea, brown rice, chia seeds, tomatoes and pomegranates. And studies have shown that lycopene (found in tomatoes) and polyphenols (found in pomegranates) help skin protect itself against UV damage. No, you can't skip SPF, but if you're going to be spending a lot of time in the sun, use this supplement to boost your protection.

Who doesn't love a beauty supplement in gummy form? It's like a flashback to childhood (and, hopefully, child-like skin).

There's also a lot of goodness packed into this gummy. The beauty supplement contains hyaluronic acid (an anti-aging ingredient that helps your skin hold onto moisture) and collagen to improve elasticity. While hyaluronic acid may be an all-star ingredient, Forrelli says collagen plays an equally important role in turning back the hands of time.

"As we age, we naturally produce less collagen and hyaluronic acid, starting at age 25," Forrelli shares. "That's why starting early with these beauty supplements is so beneficial. When you supplement with collagen, it helps to provide more structure, smooth out the skin and essentially slow down that process of skin aging."

Overall youthfulness -- not just younger-looking skin and hair -- is the goal of this supplement, which you take both in the morning and at night. During the day, it boosts energy levels. In the evening, it uses natural ingredients to help you sleep better. It contains the hottest beauty ingredients (flaxseed oil, turmeric and vitamins A, C, E and D), and users report vibrant skin, softer hair and quality Z's.