The impact of 1-year vitamin D supplementation on vitamin D status in athletes: a dose-response study.

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Not only is it our goal to provide you with the most effective, result-producing supplements available, but we want to make it as affordable as possible too.

That’s why all orders within the continental United States above $99 ship completely free of charge, while all international orders above $199 ship for free (this includes Alaska/Hawaii).

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If you purchase a RealScience supplement and are unhappy with it for any reason, just let us know and we’ll promptly refund your entire purchase.

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Very few companies will offer a guarantee like this, but we truly value our customers and know that the quality and effectiveness of our supplements stands on its own.

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It costs a bit more on our end to go this route, but guarantees that you’re getting the purest ingredients and highest quality processing available.