It's our daily foundation spray. Vitamin D3 supports strong bones, healthy immune function, muscle function, and overall energy and mood — and K2 makes sure the calcium your body absorbs actually gets directed where you want it. Most people don't get anywhere near enough D from sunlight alone, especially in the winter or if you spend your days indoors, so this is the one you take every morning without thinking about it.

Because they only really work as a pair. D3's job is to help your body absorb calcium — but on its own, it doesn't tell that calcium where to go. K2 is what directs it into your bones and teeth, where it belongs, instead of letting it settle in your soft tissue and arteries. Taking high-dose D3 without K2 is a very common mistake. We formulated them together so you don't have to think about it.

Spray it under your tongue in the morning, hold for a few seconds, then swallow. Once a day, every day — consistency is what makes fat-soluble vitamins work. It's mild-tasting, so you can take it straight or right after your coffee.

Just the actives and a clean, all-natural base. Made in the USA in a cGMP-compliant facility, triple lab tested, vegan, and non-GMO, with no artificial colors or unnecessary fillers. It's the same standard we hold every Rejuvia product to.

A capsule or gummy has to be swallowed and digested before any of it reaches your bloodstream — that takes 45–60 minutes and you lose potency in the process. An oral spray absorbs directly under your tongue, straight into your bloodstream, bypassing the stomach entirely. Better absorption, faster, and no giant horse pill to choke down. That last part matters more than people admit — a lot of our customers came to us specifically because they can't or won't swallow pills.

All of our products are indepdently triple lab-tested for purity and potency each batch. Each prodcut comes with a Certificate of Analysis to ensure we are using the finest ingredients and you can access it via a QR code on the packaging. We batch-test and validate with certified third-party labs to ensure purity and consistency.

We offer a 90-day money-back guarantee on your first Rejuvia order, no questions asked. All subsequent orders are not eligible for returns or refunds. Customers are responsible for return shipping costs. To start a return, simply email us at hello@rejuvia.co for easy instructions.

We do our best to ship out all orders within 24 hours after they are placed from our warehouse in Chicago. You typically can expect your order to get to you within a maximum of 3 business days after you place it.