OptiFerin-C
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Vitamin C289 systematic reviews · 808 randomised trials | 100 mg |
| Calcium702 systematic reviews · 3290 randomised trials | 11 mg |
| Iron561 systematic reviews · 1964 randomised trials | 28 mg |
| Threonic Acid | 1 mg |
Certifications & Testing
Other Ingredients
Vegetarian Capsule, hypoallergenic Plant Fiber, Ascorbyl Palmitate
Recommended Use
Recommendations: As a dietary supplement, take 1 capsule, 1-3 times daily with meals.
Warnings
Warning: See side panel. Keep out of the reach of children. Use only if safety seal is intact. Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of the reach of children. In case of accidental overdose, call a doctor or poison control center immediately. Warning: If you are pregnant or lactating, have any healt
Frequently Asked Questions
What is Pure Encapsulations OptiFerin-C's Formulate score?
Pure Encapsulations OptiFerin-C scores 76 out of 100 (grade B+) 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 Pure Encapsulations OptiFerin-C worth it?
Pure Encapsulations OptiFerin-C scores 76/100 (grade B+). That's an above-average result — most of its doses and ingredient forms are well-chosen, with only minor gaps in dosing, transparency, or testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Pure Encapsulations OptiFerin-C?
Each serving contains Vitamin C (100 mg), Calcium (11 mg), Iron (28 mg), Threonic Acid (1 mg). Serving size: 1 Capsule(s). 60 servings per container.
How do I take optiferin-c?
Recommendations: As a dietary supplement, take 1 capsule, 1-3 times daily with meals.
Who makes OptiFerin-C?
OptiFerin-C is made by Pure Encapsulations. See Formulate's full grade and product lineup for Pure Encapsulations on its brand page.
Is Pure Encapsulations OptiFerin-C third-party tested?
Pure Encapsulations lists the following certifications and testing for this product: Dairy-Free, Non-GMO, Soy-Free, Vegan, Vegetarian, cGMP Certified, Third-Party Tested, Certified Gluten-Free (GFCO).
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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.