Sunlight and androsterone

After a short tan in the sun, I feel amazing.

Self-confident, good mood, libido, androgenic.
It most likely optimizes the hormones androsterone.

Unfortunately, in my country there is no sun all year round. Do you know any ways to imitate tanning to obtain similar benefits?
OR
ways to increase androsterone.

Regards

A simple test to know if it actually is androsterone or vitamin D you could supplement one at a time and see what results you get.