Our liquid culture syringes are tested for quality assurance and absence of contamination. We also use all-natural ingredients, so you can feel confident knowing you are purchasing only a high-quality liquid culture product! Each syringe comes sealed and sterilized, loaded with 3ml-10ml of solution (depending on which syringe size is selected). Each of our liquid culture orders includes the following: 1x Pre-loaded high-quality Cordyceps liquid culture 1x sealed 18g needle for easy inoculation 1x Information card that provides instructions, tips, and resources to help you get the most out of your mycology journey! 1x FREE surprise bonus gift! Quality of our Liquid Culture: Our LC is created using conscientious practices to ensure we produce quality and effective LC products. These practices include rigorous sterile practices when handling all supplies and equipment, ensuring proper conditions during sterilization of the culture media, and high-quality nutrients for healthy and vigorous mycelium to improve our species collection's genetic composition and yield quality for our customers. Our mission is to provide the best quality cultures and mycology supplies for everyone so that whatever your goal is, you get optimal results, and optimal results make a positive impact on the lives of others. That is our satisfaction. If you happen to receive a defective syringe, please let us know, and we will assist you in getting a replacement immediately, free of charge! If you have any questions, please message us; we are here for you! Mush love!