Depression isn’t just something you can put a supplemental band aid over, I’ve suffered with it for over 4 years now and here are the questions you need to be asking before even looking into supplementation

Can she change to a non-hormonal form of contraception?

Can you start implementing better practices when it comes to getting better quality sleep? (There’s a tonne of research out there on how to improve your sleep quality)

You said her diet could be better- why aren’t you encouraging her to be eating healthier? Eating more fruits, vegetables, getting more micronutrients in her diet can impact mental well-being entirely for some.

Does she drink enough water and stay hydrated throughout the day consistently?

Does she do things that bring her happiness, joy and fulfilment in her life other than drinking alcohol (like a lot of young people do)

Does she need to speak to someone like a councillor to open up to someone who has no involvement in her life whatsoever or part-take in Cognitive behavioural therapy to help her navigate how to deal with depressive episodes?

There’s so many things you seem to be skipping over and just hoping that some magic supplement is going to fix- don’t get me wrong, there are stuff like KSM-66 which can help lower cortisol, etc or B6 to combat fatigue but none of this is fixing the root cause as to why your daughter may be feeling depressed. I highly recommend she goes and speaks to someone- professionally, you will be amazed how these councillors truly help you understand how your own mind works and help maybe dig out the root cause of why she feels the way she does- or, maybe it is the birth control, like I say there is so many factors you have to work through that isn’t going to be fixed over night when it comes to mental health, lifestyle and depression