100% natural. 4 liquid packets. For recipes and tips using Swanson Flavor Boost, visit www.flavorboost.com. No MSG added. Small amount of glutamate occurs naturally in yeast extract. Earn 1 point for your school! Labels for Education. labelsforeducation.com. Please recycle where facilities available. Swanson is committed to providing products of quality and value. www.flavorboost.com.