Join the First Day Care Collective

The First Day Care Collective is a community of pediatricians, dietitians, nutritionists, and healthcare and wellness professionals committed to helping families build healthier habits at every stage of life. Together, we’re helping families make more informed decisions about nutrition by sharing thoughtfully formulated, science-backed, Bio-Matched™ vitamins made for every age and stage.

By joining, you’ll gain access to exclusive product benefits, educational and marketing resources, early access to select launches and campaigns, and commission opportunities, all while helping the families and communities you serve discover better everyday nutrition.

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- Leann Poston M.D, M.Ed, MBA, Pediatrician and Medical Educator

“When I choose vitamins, I consider their quality and safety records, ingredients, dosage, and testing protocol. First Day has created an excellent supplement for teens.”

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The First Day Care Collective is a community of pediatricians, dietitians, nutritionists, and healthcare and wellness professionals committed to helping families build healthier habits at every stage of life. Together, we’re helping families make more informed decisions about nutrition by sharing thoughtfully formulated, science-backed, Bio-Matched™ vitamins made for every age and stage.

By joining, you’ll gain access to exclusive product benefits, educational and marketing resources, early access to select launches and campaigns, and commission opportunities, all while helping the families and communities you serve discover better everyday nutrition.

Hero image
Join Now
- Leann Poston M.D, M.Ed, MBA, Pediatrician and Medical Educator

“When I choose vitamins, I consider their quality and safety records, ingredients, dosage, and testing protocol. First Day has created an excellent supplement for teens.”

Why Join the First Day Care Collective?

Discover the benefits.

Monetize

Earn commission on every qualifying sale

Replenish

Receive monthly First Day product restocks

Personalization

Get a personalized discount link for your audience & community

Access

Receive early access to new products, launches, and select campaigns

Education

Access creative resources, product education, and content inspiration

Who We’re Looking For

We’re looking for trusted healthcare professionals and wellness experts who are passionate about helping families build healthier habits, including:

  • Pediatricians and physicians
  • Nurse practitioners and physician assistants
  • Registered nurses
  • Registered dietitians and nutrition professionals
  • Pharmacists
  • Pediatric and family health specialists
  • Other qualified healthcare and wellness professionals

Our ideal partners:

  • Care deeply about helping families build healthier habits
  • Educate patients, parents, and communities about nutrition and wellness
  • Value science-backed, thoughtfully formulated products
  • Believe in recommending products they genuinely use, trust, and feel comfortable sharing
  • Are passionate about age- and biology-matched nutrition
  • Create educational, authentic content or regularly engage with a trusted community
Apply Now

Why First Day?

First Day's Bio-Matched™ approach is designed around age, biology, and life stage, helping families find targeted nutritional support for the needs that change as they grow.

Our formulas are developed with a focus on thoughtfully selected ingredients, meaningful nutrition, and our No Junk Promise—so healthcare professionals can feel confident introducing families to a brand built around better everyday nutrition.

Bio-Matched™ Nutrition

Bio-Matched™ Nutrition

Nutrition designed around age, biology, and life stage.

Science-Backed Formulas

Science-Backed Formulas

Thoughtfully formulated with ingredients selected for their role in supporting the needs of growing families.

No Junk Promise

No Junk Promise

No artificial colors, dyes, flavors, fillers, or fake sugars.

Made for Every Stage

Made for Every Stage

From toddlers and kids to teens and adults, First Day creates nutrition for the whole family.

How It Works

  1. 01. Apply

    Tell us about yourself, your practice, and the community you serve.

  2. 02. Get Approved.

    Once approved, you'll receive access to your First Day Care Collective partner resources

  3. 03. Share First Day

    Receive your personalized link and share First Day with the families and communities who trust your recommendations.

  4. 04. Earn Commission

    Earn commission on qualifying purchases made through your personalized link.

Featured Healthcare Professionals

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of parents see improved health & wellness

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of kids ask for their vitamins daily

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customer satisfaction rate

Ready to Join the First Day Care Collective?

Join a community of healthcare professionals helping families make better nutrition a part of everyday life.

Apply Now