Regarding the color of Stabilized Vitamin C (Ascorbyl Glucoside)

Thank you for your inquiry and for sending the photo for inspection. It's understandable to be concerned when the product color isn't exactly as expected.

Based on the information for Ascorbyl Glucoside (AA-2G Stabilized Vitamin C), while the product is typically described as a white powder, a very light yellow color can sometimes be observed in the liquid form or when it starts to degrade slightly. The staff's reply correctly points out that AA-2G is sensitive to pH, and minor quality loss can occur during the pH adjustment process in manufacturing, which might result in a slight yellow tint.

However, improper storage, such as not keeping the product refrigerated (recommended storage is 6-8°C), will significantly accelerate its degradation. Degradation of Vitamin C often manifests as a change in color, typically turning yellow or brown, along with a loss of efficacy.

Since you did not refrigerate the product immediately, and you've observed a light yellow color, it is wise to have the staff assess the photo you sent. They will be able to determine if the degree of yellowing is within the acceptable range or if it indicates significant degradation due to storage conditions.

Please wait for the staff's confirmation after they review your photo before using the product to ensure you are using a product with optimal efficacy.