Reading the Nutrigain blog it looks like they have found a very innovative way of supplementing phase 2 compost with a liquid.
Stuart Whitehall, MD at Nutrigain, commented that it is based on a similar technology to the original Natural Gold supplement but in a much more available form.
The product is called Liquid Gold and is added to the compost at spawning. It is simple, easy and safe to use. More details can be found on the company website: www.nutrigain.com.