I was shocked when I found out what was in roll-on (and spray) deodorant, even the aluminium free products. The main ingredients tend to be: alcohol (nice way to dry the skin), water, Polysorbate 20 (a detergent and emulsifier) and Propylene Glycol (a preservative). None of these are of much actual benefit to you. They act as either the "delivery method" liquid for the roll-on or preservative. The next ingredients on the list are then the active beneficial ingredients and scents that are meant to be good for your under-arm and get rid of body odour. There can be plenty of other dubious chemicals too depending on the product.
The manufacturer does not tell you the actual amount of beneficial active ingredients they put in. Given they are usually scents and oils (such as tea tree oil) and lower on the list, we can say these are low in volume. Let's be very generous and suppose it is 10%. That means out of a 50ml roll-on that you pay about $5 for, you only get 5ml of the good stuff, and the rest is filler. It could be harmful filler too! For example, the World Health Organisation recommends daily limits on Polysorbate 20!
So if you buy a 50ml bottle, it may last a few weeks, while using 2.5ml per day per arm. Only 10%, or .25ml of this, is actually any good for odour control. But that is such a tiny amount - about 10 times smaller than a pea! On top of this insult, the rest of the roll-on has all those other undesirable chemicals I mentioned earlier such as alcohol, detergents/emulsifiers and preservatives! Seriously?
That's why we made Bohdi Balm. It has no horrible chemicals and a pea-sized daily application is 100% dense with active, natural and nourishing ingredients that are astonishingly effective against body odour. Even the coconut oil, which is the primary "delivery method" has known beneficial and hydrating properties for the skin. No wonder your under-arms are probably sick of those nasty and weak store-bought deodorant roll-ons and sprays! Show them some love and smell great at the same time.