The picture shows A Lasting Impressions purple colour changing formula. It starts out a light green powder then changes to a bright purple when you add water then starts to lighten when you need to put the hand or foot in it then finally ends up green telling you can take the hand or foot out of the mould. It's ready to cast.
hypo allergenic, silica free and dustless.
Alginate is a powder made from seaweed. I mix it with warm water and it turns into a mixture like the consistency of extra thick cake batter, then after a minute or two (just enough time to mix it and put the hand or foot into it) it turns into a rubbery mould. Dentists use this product to take impressions of our teeth. When I first started my lifecasting business the only alginate I could find was from dental distributors. These alginates were design for taking impressions of our teeth and have flavouring added to them plus the setting time was way too fast. The other problem was that it was very expensive.
It is very safe, odorless, warm, comfortable, non-toxic and hypo allergenic.