Our live Golden Mane Mushroom Liquid Culture Syringe contains an isolated biological sample grown here at All Things Grown. Each Golden Mane Mushroom Culture is guaranteed 100% contaminate free, or we will replace it at no cost to you. Every mushroom culture syringe contains a proven high-output isolated sub-strain for maximum Golden Mane Mushroom yield and minimum incubation time. Every purchase includes a sterile individually packaged hypodermic needle for injecting substrate. Mushroom culture syringes are used by laboratories to easily transfer isolated biological samples between locations and substrates without risk of contamination.