If you’re raising teenagers, you know that being moody and tired is kind of their thing. Some of that is obviously just part of being a teen, but as a wellness editor, I also started to wonder if my teens were getting all of the nutrients they needed to support their energy, mood, and development.

That search led me to First Day, the vitamin brand tackling what it calls “Hidden Health Crises” – modern health concerns ranging from nutrient deficiencies to heavy metal exposure – with formulations designed specifically for every stage of development. Their Teen’s Multi is  formulated specifically for ages 13–17 with nutrients selected to support things like mood, brain function, focus, immunity, and healthy development. 

My teens have been taking them for a few months now, and I’ve been floored by the difference in how they show up day to day. As someone who spends her career scrutinizing wellness products – and her evenings parenting teenagers – here are the five reasons these made the cut.