Hello, I am finishing my new career chemistry so I can guide you in the manufacture of alcohol-free perfumes, I can also explain the manufacture of perfumes with alcohol and the differences between both methods, I can tell you what types of essential oils to use, the types that exist and the methods of extraction , the methods of preserving the perfumes, what ingredients you need, maximum amounts allowed, the proportion of the ingredients, how to color the perfumes if you like, how to keep them without being damaged, notes of heart, background and output in the perfumes, etc ... everything you need!