Comparing the two fragrances…

Penhaligon'S

Van Cleef & Arpels
Alula
Encens Précieux
Only in Alula
Shared character
Both Alula and Encens Précieux belong to the ambery (oriental) fragrance family and share spicy and sweet accords. They both feature notes of vanilla, incense, olibanum, tobacco leaf, tobacco, black pepper, and frankincense.
How they differ
Alula contains unique notes of cardamom, patchouli, saffron, plum, and turmeric, which contribute to fruity, gourmand, and oriental accords. Encens Précieux features unique notes of amber, leather, pink pepper, and myrrh, resulting in woody, leathery, animalic, smoky, balsamic, and fresh spicy accords.
Who each suits
Alula suits those who prefer fruity, gourmand, and oriental profiles. Encens Précieux suits those who prefer woody, leathery, smoky, balsamic, or animalic profiles.
Only in Encens Précieux