Vitamin D3 Drops for Kids 10 mcg (400 IU)
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
Certifications & Testing
Other Ingredients
Medium Chain Triglycerides, organic Flaxseed Oil, Vitamin E
Recommended Use
Suggested Usage: Invert bottle and allow 1 drop (0.03 ml) to flow out onto a spoon, or mix with food or liquids. 1 drop per day or as directed by a health professional. Do not exceed 1 drop per day for children under one year old. Shake well before use.
Warnings
Do not exceed 1 drop per day for children under one year old. Cautions: As with any supplement, consult your health professional before use if you are pregnant, breastfeeding, or trying to conceive, or if you are taking medication, have a medical condition, or anticipate a surgery. Keep out of the reach of children. Sealed for your protection. Do not use if seal is broken.
Frequently Asked Questions
What is Natural Factors Vitamin D3 Drops for Kids 10 mcg (400 IU)'s Formulate score?
Natural Factors Vitamin D3 Drops for Kids 10 mcg (400 IU) scores 80 out of 100 (grade A-) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is Natural Factors Vitamin D3 Drops for Kids 10 mcg (400 IU) worth it?
Natural Factors Vitamin D3 Drops for Kids 10 mcg (400 IU) scores 80/100 (grade A-). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Natural Factors Vitamin D3 Drops for Kids 10 mcg (400 IU)?
Each serving contains Vitamin D3 (10 mcg). Serving size: 0.03 mL. 492 servings per container.
How do I take vitamin d3 drops for kids 10 mcg (400 iu)?
Suggested Usage: Invert bottle and allow 1 drop (0.03 ml) to flow out onto a spoon, or mix with food or liquids. 1 drop per day or as directed by a health professional. Do not exceed 1 drop per day for children under one year old. Shake well before use.
Who makes Vitamin D3 Drops for Kids 10 mcg (400 IU)?
Vitamin D3 Drops for Kids 10 mcg (400 IU) is made by Natural Factors. See Formulate's full grade and product lineup for Natural Factors on its brand page.
Is Natural Factors Vitamin D3 Drops for Kids 10 mcg (400 IU) third-party tested?
Natural Factors lists the following certifications and testing for this product: Vegetarian, Gluten-Free, Dairy-Free, Sugar-Free.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.