Ofra Cosmetics B5 Moisturizing Serum is an intensive, hypoallergenic anti-oxidant formula that will refine and smooth lines, and is suitable for all skin types. The hyaluronic acid holds 100,000 times more moisture content than its weight. This product is suitable for people who suffer from dehydrated skin. Improvement will be seen within 24 hours. This product may be used on its own in hot humid weather. Results maintained with continued use morning and evening.