Autoclavable. For invitro use only. Not for ingestion. Add 1/20 gram per liter of agar media prior to sterilization. Prevents bacterial growth while stimulating mushroom mycelium. Highly recommended. Not for prolonged use. 1 pack (1/20 gram)

Note: Current stock of media antibiotic is marked with an expiration of 08/08. Does that mean it will magically stop working in September? Probably not. But just to help us sell through some of this "near expiration" stuff we are going to offer media antibiotic at a great discount until August 8th. Available for $5 per vial, or choose the four pack of vials for only $16!