Limit application to dark spots or affected areas Unless your provider tells you otherwise, apply hydroquinone only to the areas that need treatment
It really comes down to your goals, comfort level, and lifestyle
Finasteride in the treatment of men with androgenetic alopecia
S., Garzon, S., Casarin, J., Franchi, M., & Ghezzi, F
The acetate ester was dissolved in chloroform and analyzed using an Agilent 6890A-5977B gas chromatography-mass spectrometry (GC-MS) system (equipped with an Agilent BPX70 column, specifications: 30 m 0.25 mm 0.25 m, SGE, Australia) with high-purity helium (split ratio 10:1) as carrier gas and an injection volume of 1 L