FBM™ basal medium is a component sold separately. This is part of the FGM™ -2 and FGM™ -3 Fibroblast Growth Medi BulletKit™sTM (Catalog Numbers CC-3132 and CC-4526, respectively) which consist of basal medium and supplements packaged together. FGM™-2 Fibroblast Growth Medium-2 was developed to support the growth of most primary human fibroblasts including lung and dermal fibroblasts. FGM™-2 Medium contains 2% serum. FGM™-3 Fibroblast Growth Medium-3 was developed specifically for cardiac fibroblasts. FGM™-3 Medium contains contains 10% serum.