There are products specifically for warming up bottles. They hold the bottle and, using a power source, warm the bottle up and keep it warm. You can find travel heaters that will plug into your car, too. These, along with other bottle heaters, will ensure that you keep the bottle warm with little effort. They are easy to use, they are effective, and they are, of course, safe. You just have to make sure that you buy the right one for you. Compare them, compare prices, get an idea of what you need, and make an informed purchase Lotion Pumps Suppliers that will give you everything you need out of a bottle heater.
You can also use a thermos. You might Dropper Bottles have one already sitting around so it should be no problem. Store the bottle inside of the thermos to maintain temperature for as long as possible. There is a huge selection if you plan to purchase one, too. You can find one that is the appropriate size and you can find one that you will trust will work. Along with putting the bottle in the thermos, you can put hot water in with it. This will help to keep the bottle warm for longer. If you stop by a gas station, they may also have hot water from sinks or from hot water dispensers usually reserved for tea and coffee.