The Kit includes supplies to test your skin microbiome type, as well as a travel size duo of our beloved Holy Calming Cleanser and Skin Barrier Silk Cream. The Bundle includes everything in the Kit plus a pre-order for the active phage serum that matches your skin type. If you order the Bundle, we will automatically send you your matched phage serum once your test results are delivered. If you order the Kit without the Bundle, you can always order your matched phage serum at any later date.