![Rejuvyve D3 Rejuvyve D3](https://functionalkidneycare.com/wp-content/uploads/2021/12/Rejuvyve-D3.png)
Rejuvyve Vitamin D3
D3 supports critical organ function and aids in the absorption of calcium and phosphorus, which helps keep your bones strong and improves your immune system.
![Rejuvyve D3 + K2 Nano Spray](https://functionalkidneycare.com/wp-content/uploads/2021/12/Rejuvyve-D3-K2-Nano-Spray.png)
Rejuvyve D3 + K2 Nano Spray
Clinically proven ingredients that support and strengthen bones and muscles, boost immunity, improve mood, aid in weight loss, and help improve organ function.
![Drop Vitamin D Level Test Drop Vitamin D Level Test](https://functionalkidneycare.com/wp-content/uploads/2021/12/Drop-Vitamin-D-Level-Test.png)
Drop Vitamin D Level Test
This convenient at-home mail-in test measures your vitamin D (25-OH D) level and indicates whether it is suboptimal, adequate or elevated.