The short answer · Red blood cell count
Take hydroxocobalamin for red blood cell count. This is the one to buy.

Source Naturals, HydroxoCobalamin, Cherry, 1 mg, 240 Lozenge
4.8· 1,737 ratings· $0.10/serving
Hydroxocobalamin 1 mg — inside the studied 1-2 mg window
Of 51 products scored for Red blood cell count, Source Naturals, HydroxoCobalamin, Cherry, 1 mg, 240 Lozenge ranks #1 with a DoseRank score of 81. Hydroxocobalamin is the strongest evidence signal for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Hydroxocobalamin?”Evidence Strong evidence
Hydroxocobalamin is the strongest evidence signal for this outcome.
- HydroxocobalaminThe pick
Strong evidence · 1 mg
Injectable or sublingual B12 form that binds tissue proteins for extended retention; preferred clinically for correcting deficiency and some metabolic disorders.
The dose“Is the dose actually effective?”Dose fit 67
Hydroxocobalamin at 1 mg lands inside the studied 1-2 mg window.
Hydroxocobalamin
Studied window 1-2 mg · this pick 1 mg
The ranking“Why should I trust this pick?”Trust 83
Solid trust signals from buyer ratings, with room to grow. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 51 products scored
- Never paid placement
- Evidence level: Strong · 92
- 21 brands
- 2 ingredients
The price“Can I do better than $0.10 a serving?”Value 76
$0.10 per serving — mid price tier for this outcome. Nothing else in this ranking costs less per serving.
Ready?
The #1 pick is $0.10 a serving.Source Naturals, HydroxoCobalamin, Cherry, 1 mg, 240 Lozenge — in stock at a tracked retailer.
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Source Naturals, HydroxoCobalamin, Cherry, 1 mg, 240 Lozenge ranks #1 for Red blood cell count with a DoseRank score of 81. The score blends clinical strength, evidence, dose fit, trust signals and value across 51 products scored for this outcome.
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