NOW Foods Vitamin A 25,000 IU provides a high-potency dose of preformed retinol in an oil-based softgel — intended for short-term therapeutic use under healthcare guidance, or for individuals with confirmed severe deficiency. At 25,000 IU, this is a clinical-level dose used in supervised protocols for skin conditions, severe immune compromise, and recovery from deficiency. Vitamin A (retinol) is essential for immune cell development, vision in low light, skin integrity, reproductive health, and normal cellular differentiation. Preformed retinol is immediately available without conversion. Because vitamin A is fat-soluble and accumulates in the liver, long-term use at this level is not recommended without professional guidance and periodic blood monitoring. NOW Foods provides this dose in an oil-based softgel for maximum fat-soluble absorption, manufactured in their GMP-certified facility.