Thank you for your suggestion!
There are probiotics in Huel but I wouldn’t link probiotics to mood boosters. The evidence for this is very weak if any.
I’ve researched a few of these ingredients quite a lot so I focus on them to give you a better overall view. Curcumin I would say there is not enough evidence for, the article highlights “one small controlled study” but we need way more as highlighted here.
Oregano oil, green tea and berberine are the same. There is a real lack of studies in humans.
If you want ways to keep your mood on the good side then ensuring you are not deficient in magnesium is likely a good idea. Exercise and fulfillment in your job are my two other suggestions for now.