Sodium Alginate and Preservatives

Regarding your questions about Sodium Alginate and preservatives:

1. Sodium Alginate in food (blended fruit juice): Sodium Alginate is a common food additive (E401) used as a thickener and gelling agent in various food products, including beverages like fruit juices and smoothies, to improve texture and stability. While Sodium Alginate is generally food-safe, it is important to confirm that the specific "Super Fine" product you are interested in is certified as food grade if you intend to use it in food applications. Potassium Alginate, a related product, is also used as a thickener.

2. Preservative for skin application (1-year shelf life, non-irritating): For a product applied to the skin that requires a 1-year shelf life and a non-irritating preservative, Sodium Dehydroacetate is a suitable option. It is commonly used as a preservative in cosmetic products, is described as non-irritating, and has a minimum shelf life of 2 years. Sodium Benzoate is another type of preservative, but Sodium Dehydroacetate aligns well with your requirement for a non-irritating option for skin application.

Always follow recommended usage rates and guidelines for any ingredient you use.