Safe Wood Preservative

[Geoff]

Hi,
I am in the process of creating a raised bed for growing organic veges and am searching for a suitable wood preservative for the 2x12 raw pine planks I would like to use.
Does anyone know of a product called Lifetime Wood Treatments made by Valhalla.and if so what is its reputation for this purpose.
On the surface this product sounds pretty good and the company representative reassures me that the product is perfectly safe for this application.
Any other wood preservative members can recommend would also be most appreciated.
Thanks for any help you can give me.
G