Remove and discard white cap and replace with dropper. Place two to three drops in palm of hand and use fingertips to apply a thin layer to face, neck, chest and back of hands as desired. Apply once or twice daily to clean, dry skin before any creams. Tighten dropper securely after each use. Limit sun exposure during treatment by using protective clothing or a sunscreen protective agent to avoid re-darkening of the skin. L-Ascorbic Acid USP will tend to oxidize and change to a light yellow color with time. This change in color is natural and will not significantly alter the product’s effectiveness. Store at room temperature (15-30°C / 59-86°F).