The short answer · Homocysteine
Take calcium l-methylfolate for homocysteine. This is the one to buy.

California Gold Nutrition, Methyl Folate and Vitamin C, 120 Veggie Capsules
4.8· 4,875 ratings· $0.07/serving
Calcium L-Methylfolate 1360 mcg — inside the studied 400-5000 mcg window
Of 5,198 products scored for Homocysteine, California Gold Nutrition, Methyl Folate and Vitamin C, 120 Veggie Capsules ranks #1 with a DoseRank score of 87. Calcium L-Methylfolate is the strongest evidence signal for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Calcium L-Methylfolate — not Methylcobalamin or Cyanocobalamin?”Evidence Strong evidence
Calcium L-Methylfolate is the strongest evidence signal for this outcome.
- Calcium L-MethylfolateThe pick
Strong evidence · 1360 mcg
A calcium salt of active 5-MTHF; delivers ready-to-use folate without the enzymatic conversion folic acid requires, useful for those with MTHFR variants.
- Methylcobalamin
Strong evidence · 1500 mcg
Active, coenzyme form of vitamin B12 that doesn't require hepatic conversion; preferred for neurological support and often recommended when conversion from cyanocobalamin is impaired.
- Cyanocobalamin
Strong evidence · 1 mg
Synthetic B12 form, stable and inexpensive; must be converted to active coenzymes in the body, and those with MTHFR variants or poor conversion may respond better to methylcobalamin.
The dose“Is the dose actually effective?”Dose fit 72
Calcium L-Methylfolate at 1360 mcg lands inside the studied 400-5000 mcg window.
Calcium L-Methylfolate
Studied window 400-5000 mcg · this pick 1360 mcg
The ranking“Why should I trust this pick?”Trust 95
Strong trust signals — consistently high marks from verified buyer ratings. 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.
- 5,198 products scored
- Never paid placement
- Evidence level: Strong · 92
- 420 brands
- 22 ingredients
The price“Can I do better than $0.07 a serving?”Value 88
$0.07 per serving — low price tier for this outcome. The cheapest ranked pick here is $0.06 per serving.
- 3NOW Foods, B-12, 100 LozengesScore 87 · $0.06/servingiHerb
- 5NOW Foods, Methyl B-12, 1,000 mcg, 100 LozengesScore 87 · $0.07/servingiHerb
Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.
Ready?
The #1 pick is $0.07 a serving.California Gold Nutrition, Methyl Folate and Vitamin C, 120 Veggie Capsules — in stock at a tracked retailer.
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California Gold Nutrition, Methyl Folate and Vitamin C, 120 Veggie Capsules ranks #1 for Homocysteine with a DoseRank score of 87. The score blends clinical strength, evidence, dose fit, trust signals and value across 5,198 products scored for this outcome.