Yes, perfume oils can be layered if you enjoy experimenting.
But layering is optional.
Lily Essences fragrances are strong enough to be worn individually, so there is no official layering system customers need to follow.
Some people prefer one scent at a time. Others combine fragrances themselves and discover their own combinations.
Both are completely fine.
Perfume layering should feel creative—not like homework.
Start with scents you already enjoy separately, use small amounts, and see what your nose thinks.