Melatonin and L-Tryptophan are not herbal supplements. They are both integrally needed for normal brain function. L-Tryptophan is an essential amino acid. It converts to 5-HTP which converts to Melatonin and Serotonin.

Valerian root is an herbal supplement.

And NO, most anti-depressants do not have an addicting quality to them. They may have withdrawal symptoms but those are not the result of addiction.

Anxiolitics (anti-anxiety drugs) have a variety of negative issues to consider. Benzos cause cognitive decline.