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Thorne vs Pure Encapsulations Vitamin B12 (2026)
Disclosure: We earn commissions on purchases made through our links. This never influences our scores. Editorial policy
The Verdict
Both products score A- overall. Thorne and Pure Encapsulations are nearly interchangeable at this quality tier. Pure Encapsulations has a slight edge on transparency with its hypoallergenic certification. Thorne has a slight edge on value. For most buyers, the decision should come down to whichever is cheaper or more readily available when you purchase.
Thorne Methylcobalamin
Thorne
Pure Encapsulations Vitamin B12 1000 mcg
Pure Encapsulations
Head-to-Head Comparison
| Category | Thorne Methylcobalamin Thorne | Pure Encapsulations Vitamin B12 1000 mcg Pure Encapsulations |
|---|---|---|
| Overall | A- | B+ |
| Evidence | A | A |
| Quality & Purity | A+ | A- |
| Value | C+ | C |
| Transparency | A+ | A+ |
| Cost/Day | $0.22Winner | $0.30 |
| Dose/Serving | 1000mcg | 1000mcg |
| Form | methylcobalamin capsule | methylcobalamin hypoallergenic capsule |
| Third-Party Tested | ✓ Yes | ✓ Yes |
| Proprietary Blend | No | No |
Why This Comparison Matters
Thorne and Pure Encapsulations are the two brands most recommended by integrative medicine practitioners, and both offer methylcobalamin - the active, methylated form of B12. This comparison is for buyers who have already decided on a practitioner-grade product and need to choose between these two.
Both brands are known for minimal excipients, rigorous testing, and hypoallergenic formulations. The differences are subtle: delivery form, capsule vs sublingual, specific third-party testing protocols, and cost per effective dose.
We compare them head-to-head on our four-factor scoring system.
Detailed Score Breakdown
Thorne Methylcobalamin
Thorne
Methylcobalamin at 1,000 mcg - active form with direct neurological uptake. Appropriate for MTHFR variants and neurological support applications.
NSF Certified for Sport - verified free from 270+ banned substances. Thorne manufacturing exceeds FDA cGMP standards and is one of the most trusted names in practitioner-grade supplements.
$0.22/day - premium pricing driven by NSF Certified for Sport status. Justified for competitive athletes; harder to justify for general-population use when $0.05/day methylcobalamin options exist.
Exemplary transparency. Methylcobalamin form clearly specified. No unnecessary excipients. Clean capsule with no artificial colors, flavors, or fillers.
The best choice for competitive athletes who need NSF certification. Premium pricing is the only real drawback.
Pure Encapsulations Vitamin B12 1000 mcg
Pure Encapsulations
Methylcobalamin at 1,000 mcg from a practitioner-grade brand with a strong allergen-free formulation focus
Third-party tested by Eurofins/Silliker. Hypoallergenic - free from gluten, dairy, soy, tree nuts, and all major allergens. GMP+ certified quality system.
$0.30/day - the most expensive product in this comparison. The premium is justified primarily by hypoallergenic formulation, not by superior B12 efficacy.
Near-perfect label transparency. Every ingredient disclosed including capsule shell composition. Hypoallergenic certification. No fillers or unnecessary additives.
The standard recommendation for patients with multiple food sensitivities or allergies. Practitioner-grade quality at a premium price.
How We Compared These Products
Every product in our database is scored on four equally-weighted categories: clinical evidence quality, third-party testing and purity verification, cost per clinically effective dose (not cost per pill), and label transparency. These scores combine into an overall letter grade from A+ through F.
Cost per effective dose is calculated using the clinically studied dose from published research, not the manufacturer's suggested serving. If a product requires multiple servings to reach the dose used in clinical trials, that cost is reflected in the value score.
For a full explanation of our scoring methodology, see our methodology page. Prices were last checked on the dates listed for each product and may have changed.
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We earn commissions on purchases made through our links. This never influences our scores or recommendations. See our editorial policy.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products discussed on this page are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.