Well, it is unclear what you mean by stabilizing the smell of natural rose. In this regard we can say this - the rose oil is very stable substance as it has no expiration date, it does not deteriorate with time, mostly because of natural high alcohol content. The aroma is very stable and will not change over time. For this reason all the most exclusive perfumes use rose oil as base because it will maintain its properties and the aroma as modified by the perfumer.
The rose is a very fragile plant and to stabilize the smell of the roses is simply not possible. Unless you are utilizing dried roses - we offer freeze dried roses, which preserves the appearance of the original rose to a certain extend.
Rose oil and Rose absolute for that matter are extremely concentrated substances. It is never advisable to use directly on the skin, but dilute with carrier oils.
Rose oil is an expensive items so instead of the inexpensive postal service we recommend EMS at around $35.00 depending on weight of the order, or courier at $65.00.