Depression is most DEFINITELY a hormonal thing. It's a abnormal chemical level in your brain. Hormones control the chemical level in your brain. That's why lots of teenagers are depressed, because their hormones are whacked anyway.
Hair loss is hormonal. That's why they have prescription hair growth medicine that removes a hormone secreted on your scalp that suffocates hair.
I guess I'll tell you here, instead of relying on you finding it. The entire DRUG is hormonal. It stops your body from producing the hormone androgen. Androgen is a natural part of development during puberty. By stopping your body from producing this it stops your oil glands from producing oil. This is why you get chapped lips and are so dried out.
Also Isotretinoin (accutain) is an overdose of Vitamin A. Vitamin A is very harmful at high doses. Isotretinoin also increases your triglyceride levels, which is why weightgain is a side effect.
I think this is gonna scar me.