I want to ask the quantity of Retinol located at Encapsulated Retinol that 2% of Encapsulated Retinol Yes Retinol a How many %? I'm quite confused with the units shown on the web page. "Concentration of Vitamin A : 65K.IU/g[/i ] What does this mean? I'm confused how to convert volume of Vitamin A in grams. Thank you.