White beeswax is still very much natural and organic. It comes from the same type of beeswax as yellow beeswax. However, what gives white beeswax its ivory colour is that it went through a pressure-filtration process that not only filtered out the impurities and the debris but also removed its yellowish colour to give it a white appearance.
Another reason why white beeswax is white is that it went through a natural bleaching process where it is exposed to thin layers of air. As such, it has been completely refined to the point that it no longer has the natural yellowish appearance that you should see in beeswax. But that does not make it any less natural than it should be even though some people doubt whether or not white beeswax is still indeed natural (considering that they think that chemicals were used for the bleaching process).
Indeed, there is some white beeswax that might not be fully natural, especially when they were manufactured using questionable methods. That's why it is important for you to make sure that you only get your white beeswax from a reputable company or that you are using a white beeswax product that comes from a good brand.
White beeswax, due to its pure colour, is often used for cosmetics and soaps because of how manufacturers are given the leeway to add colorants to such products. And because it lacks the yellowish colour of beeswax, white beeswax is ideal for those who would want to make candles and other products that have a whitish or light tone.