While aromachemicals do usually consist of one molecule, it's natural counterparts are a complex combination of hundreds of molecules. For instance plain artificial Vanillin with one and natural Vanilla with over 250 identified components.
Thus the odour profile of the two could be compared to the plain sound of a plastic keyboard versa the opulent spectrum of a Steinway grand piano. The aroma of the natural materials is simply second to none, oozing natural pheromones
Due to their prohibive cost and often inconsistent and very limited availability, you will unfortunately not find them in industrial products.
There are a lot of companies that are creating the impression of selling natural products by terms like "based on the purest and natural essences" and such.
The term "purest" is the most frequent empty shell in terms of perfume. With today's strict (at least in EU) legislation, it is certainly not allowed to use "unpure" materials and doesn't say anything about whether that essence comes from natural or synthetic origin!
A look on the product label does mostly reveal the exact opposite and I heartily recommend to look closely.
RAW MATERIALS THAT I USE:
natural essential oils, absolutes, co2 extracts, tinctures and resins, many of them certified organic.
Potable undenatured natural alcohol, also certified organic.
The amount of certified organic raw materials in the product is at least 92% or higher.
Cruelty free animal ingredients: Africa Stone (Hyraceum), a petrified, sterile and probably thousands of years old excretion of the Rock Hyrax with a Civet- and Castoreum like odour and Beeswax Absolute. If you'd like a vegan perfume, drop a line - it is also possible to make the perfumes vegan.
RAW MATERIALS THAT I DO NOT USE:
synthetic fragrance compounds, denaturants, colorants, preservatives, sunscreen chemicals, phtalates, ingredients that involve cruelty against and killing of animals.
Tested only on voluntary human bunnies.