In partnership with First Day. Editor’s Note: We only select and work with partners that meet our quality standards, so you can rest assured we only endorse products we believe in.
Multivitamins are everywhere – but if you've ever looked past the eye-catching packaging, there's a common problem: most of them, especially for younger people, are essentially glorified candy. They’re great at appealing to taste buds, but may not be great at doing much else.
That's where First Day comes in. Their "No Junk"™ Teens' Multi is formulated specifically for young adults ages 13–17, with the clinical science to back up what the label promises. Unlike other teen vitamins that cater generally to “teens” or “kids,” First Day matches their formula specifically to a teen’s deficiencies—because a 3-year-old and a 14-year-old aren't the same child, and their vitamin shouldn't be either.
Here's what First Day gets right, and why it's the one teen vitamin I always recommend.
We like
- Bio-matched formula that provides teens the nutrients they need for this stage of development
- 21 organic fruit and vegetables
- Up to 75% less sugar than other leading teen vitamins
- Free of artificial dyes, sweeteners and flavors
- Free of sugar substitutes (which are linked to health concerns); all sweeteners are fruit-based
- Refillable packaging
- Free from top 9 allergens
We don't like
- Not all teens will love the gummy vitamin format
- The best price is opting into the subscription model, which may not be every family’s first choice.
First Day vs Other Top Teen Vitamins: What the No Junk"™ Teens’ Multi Gets Right
I used to assume that if a vitamin had the right nutrients and daily percentages on the label, it was doing its job. Turns out, that's not exactly how it works. Many teen vitamins (or general multivitamins for that matter) are made with chemical forms of each nutrient that look impressive in a lab—and on a label—but get passed right through the body without ever doing much of anything.
First Day solves for this specifically with their clinical-backed combinations. Unlike many other top teen vitamins, First Day formulates every ingredient so it actually gets from the bottle into their bloodstream. In addition to optimal absorption, these nutrient combinations are very intentional. For example, Vitamin D unlocks calcium, while Vitamin C activates iron. Some nutrients actually block each other when paired wrong. So, First Day ensures their formulation works seamlessly together at the right ratios so that each one makes the other work harder.
This all means that the No Junk"™ Teens' Multi’s formulation is truly geared for teenagers ages 13–17, targeting the unique biology of a 13-year-old navigating growth spurts, hormonal shifts, and the mental demands of middle and high school.
The reviews back their approach to building vitamins specifically for teenagers: 98% of parents say First Day supports their teen's overall health and nutrition, 83% report improved mood and motivation, and 75% saw improvement in skin health.
As a parent, I rely on brand claims just as much as parent-to-parent reviews, and the fact that both are this consistent and glowing is what initially moved First Day from my "maybe" list to my cart.
Helping Parents Fight Invisible Health Threats
Whether you’re parenting a toddler deep in threenager territory or a teen who is aggressively reclaiming her independence, it’s natural to think of their wellness in the immediate sense. Is she eating enough? Is he sleeping? What’s their diet like?
What I didn't realize until I started digging into First Day is that the brand is solving for something bigger than a child’s immediate wellness. Modern parents are up against invisible health threats most of us don't even know to name: depleted soils stripping nutrients from our food, microplastics in our water and packaging, preservatives quietly disrupting gut health, heavy metals accumulating in the body over time. It's a lot to navigate, and most supplement brands aren't acknowledging any of it.
First Day calls these health issues the Hidden Health Crises, and they're the reason a standard gummy multivitamin starts to feel insufficient once I learned more about these invisible health threats.
Every First Day product is built as a direct answer to one or more of these threats, which makes it a brand that’s actually paying attention to problems most of us didn't even know we had.
Not Just for Teens
First Day's "No Junk" approach doesn't stop at teenagers. I was impressed that the brand spans 18 SKUs across every stage of family life, from toddlers as young as two all the way through adult formulas for women and men. Each product is Bio-Matched to its specific age group and set of needs, which means they don’t repurpose formulas or take a generic, one-size-fits-all approach.
For teens specifically, the multi is just a starting point. First Day also makes a Teens Probiotic+, Teens Magnesium, and Teens Brain Support, a full lineup built around the specific demands of adolescence, from gut health to focus to stress resilience. Each product targets a specific health need—and because they actually taste good, ensuring that they take it daily is one battle you won’t have to fight.
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The Teen Vitamin That’s Actually Worth It
Teen nutrition isn't exactly a hot topic for parents of teens. How to curb their phone usage probably takes that title. But teen nutrition deserves more attention than it gets.
That's why First Day stands out. It's not a brand selling general wellness to teens. They actually took the time to study and understand what modern adolescents actually need, formulating a product that answers it directly—all without the sugar, fillers, or ingredient forms that go nowhere.
I’ve read enough labels and tried enough supplements to be skeptical of most of them. First Day is the rare brand where the more I looked into it, the more my skepticism faded because the science, sourcing and formulation are all aligned.
For any parent trying to do right by their teen's health without the guesswork, First Day is a genuinely smart place to start.
Shop First Day’s "No Junk"™ Teens’ Multi for Better Teen Health.
