MARYRUTH'S Liquid Multivitamin + Hair Growth, Clinically Thicker Hair, 15oz | Clinically Tested in Women for Thicker Hair & Facial Wrinkles, Biotin 10000mcg, Lustriva Hair Growth Supplements, Skin Care
$38.95 (as of August 8, 2026 02:12 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Vitamin D Basics
Known for bone health, Vitamin D also modulates immune response and brain function.
Immune System Support
Low vitamin D is linked to increased respiratory infections; supplementation may reduce risk.
Mental Health Connections
Some studies suggest vitamin D supports mood and cognitive health, though evidence is evolving.
Supplementation Guidelines
Typical doses range from 600-2000 IU daily; monitor blood levels for optimal dosing.

