Extra Strength Liquid Vitamin D-3
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
MCT Oil
Recommended Use
Suggested Usage: Shake well. Take 1 drop 1 to 2 times daily. Take directly or add to your favorite beverage. Best when taken with a fat-containing meal.
Warnings
Caution: For adults only. Not for use in infants or children. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children. Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish or shellfish ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Frequently Asked Questions
What is NOW Foods Extra Strength Liquid Vitamin D-3's Formulate score?
NOW Foods Extra Strength Liquid Vitamin D-3 scores 89 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 NOW Foods Extra Strength Liquid Vitamin D-3 worth it?
NOW Foods Extra Strength Liquid Vitamin D-3 scores 89/100 (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 NOW Foods Extra Strength Liquid Vitamin D-3?
Each serving contains Vitamin D (25 mcg). Serving size: 0.04 mL. 750 servings per container.
How do I take extra strength liquid vitamin d-3?
Suggested Usage: Shake well. Take 1 drop 1 to 2 times daily. Take directly or add to your favorite beverage. Best when taken with a fat-containing meal.
Who makes Extra Strength Liquid Vitamin D-3?
Extra Strength Liquid Vitamin D-3 is made by NOW Foods. See Formulate's full grade and product lineup for NOW Foods on its brand page.
Is NOW Foods Extra Strength Liquid Vitamin D-3 third-party tested?
NOW Foods lists the following certifications and testing for this product: Gluten-Free, Dairy-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.