To use good skin care products that are right for your skin is always essential, but it is extremely important to have them when you travel. All products in our travel sets are 1oz, it is small enough to pack and big enough, so it last for few weeks. These travel sets also get handy in the gym bag or for sleepovers. If you never tried Diana Ralys Skin Health products before, getting a travel set or few could be a good idea before you get all full size products. This travel set includes products for all essential steps. You may add any Serum you would like they are all packaged in 1 oz bottles.