D3 Serum 0.43 fl oz

D3 Serum — 5,000 IU Natural-Source Vitamin D3 in Olive Oil Base

Premier Research Labs D3 Serum delivers 5,000 IU per serving of natural-source vitamin D3 (cholecalciferol) in a fat-soluble liquid base of extra virgin olive oil — the most bioavailable format for this fat-soluble vitamin. Unlike most vitamin D supplements that use synthetic D3 with magnesium stearate and other flow agents, D3 Serum contains natural-source vitamin D3 with no artificial flavors, colorings, or undesirable chemical additives.

Vitamin D3 requires fat for absorption, and delivering it pre-dissolved in extra virgin olive oil ensures immediate fat-soluble uptake without requiring co-ingestion with a fatty meal. The liquid serum format also allows flexible dose adjustment for practitioners who titrate vitamin D protocols based on serum 25(OH)D levels. D3 Serum supports bone growth and mineralization, calcium absorption, cardiovascular health, and immune system function.

• Vitamin D3 5,000 IU per dose — natural source, not synthetic
• Extra virgin olive oil base — fat-soluble delivery for superior absorption
• No magnesium stearate, artificial colors, or flavors
• Supports bone, cardiovascular, and immune health
• 0.43 fl oz; Premier Research Labs quality

Take as directed by your healthcare provider. Monitor serum 25(OH)D during high-dose D3 protocols.