What does Guerlain mean at the end of the perfume?

The meaning of this sentence is that when a person explores and searches in the field of perfume, he will eventually find that the Guerlain brand is the end or destination.

Guerlain was founded in 1828 and is a luxury perfume and cosmetics brand with a history of nearly 200 years. From the beginning to the present, perfume has ranked first in Guerlain's business, because this is a veritable fragrance family.

In the early 19th century, when personal perfumes were not yet popular, Guerlain was the first to introduce the concept of personalization, customizing exclusive fragrances for individuals, banquets, and even books and magazines. Personal customers included the great writer Balzac , the Queen of Belgium, the Prince of Wales and other dignitaries.