The Science › What's Inside
What's Inside
Not all vitamin D supplements are formulated the same way, and the carrier, fillers, and sourcing can matter as much as the dose on the label. The posts below cover what to look for and how D3X is formulated.
In this topic (8)
Last updated October 2026
Best Vitamin D for Seniors: What Changes After 60, and What to Take
Oct 2026
Best Vitamin D Supplement for Women: What to Look For at 30, 40, 50 and Beyond
Oct 2026
What Does Liquid Vitamin D Taste Like?
Oct 2026
How Long Does Liquid Vitamin D Last After Opening?
Oct 2026
Liquid Vitamin D3 Drops Compared: D3X vs Thorne vs Ddrops
Oct 2026
Best Liquid Vitamin D3 + K2 Drops: What to Look For
Oct 2026
Is Vitamin D3 Vegan? Lichen vs Lanolin
Sep 2026
What's Actually in Your Vitamin D Supplement
Jun 2026
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