After cleansing, apply a pea-sized drop of elixir with an upward movement, smoothing over the face and gently massaging in. For optimal results, use both morning and night.Precautions: This serum contains 0.2% concentration of Vitamin A Palmitate, which is a safe amount to use in a daywear product as long as no additional retinol products are used. While using this product, always use SPF protection during the day. If mild redness or irritation does occur, use product only every third day to allow the skin to adjust. If prominent redness, irritation or itching occurs, stop the use of the product immediately.