D3 Serum Reviews

4.9 Rating 13 Reviews

Supports immune system health and promotes bone growth and mineralization, absorption of calcium*

About Premier Research Labs:

For many years, Premier Research Labs has had a sterling reputation as the world's leader in cellular resonant nutrition technology. We have strived to become the industry leader in excipient-free, preservative-free, premier quality nutritional products and super foods.

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BROCK SCHWARTZ DC

Verified Reviewer

“Very effective and easy to dose @ 1000 IU's per drop.”

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Posted 3 weeks ago

Hi Dr. Schwartz, Thank you for the feedback. We're glad to hear that Premier D3 Serum has been effective and easy to work with. The precise dosing is one of the things we love about it too.

Posted 3 weeks ago

Kelly Trombetta

Verified Reviewer

“Great! I don’t always get a lot of sun, so these have brought my D3 levels up”

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Posted 1 month ago

Hi Kelly, We're happy to hear that D3 Serum, Premier has been a great support for your D3 levels! It’s a great way to get what you need, even without much sun. Thanks for your continued support!

Posted 1 month ago

Author didn't leave any comments.

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Posted 2 months ago

Daniel Pirrello

Verified Reviewer

Author didn't leave any comments.

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Posted 4 months ago

Martha LaRocca

Verified Reviewer

“Excellent to keep my immune system strong”

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Posted 8 months ago

Thank you for sharing your experience with D3 Serum! It’s great to hear that it’s been a key part of keeping your immune system strong. If you ever need anything or have more feedback, don’t hesitate to reach out—we’re always here to assist!

Posted 7 months ago

Nancy Zimmerman

Verified Reviewer

Author didn't leave any comments.

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Posted 11 months ago

Martha LaRocca

Verified Reviewer

“Excellent for keeping my vitamin d3 levels up”

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Posted 1 year ago

“The serum is easy to use and I feel confident knowing it is supporting my needs.”

1 Helpful Report

Posted 1 year ago