Pure Encapsulations

Adenosyl/Hydroxy B12 liquid, 1 fl oz

Size: 30 Milliliters

May be a fit for

  • Practitioners supporting mitochondrial energy metabolism with adenosylcobalamin
  • Clinically-aware adults seeking neurological function support via hydroxycobalamin
  • Individuals with suboptimal B12 absorption preferring a liquid delivery format
$35.99

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LiquidFormat
1 fl ozPack size
The essentials

A closer look.

Pure Encapsulations Adenosyl/Hydroxy B12 Liquid delivers two active coenzyme forms of vitamin B12, adenosylcobalamin and hydroxocobalamin, in a concentrated liquid format. These biologically active forms support neurological function, energy metabolism, and red blood cell formation without requiring conversion from synthetic precursors. Formulated for individuals with absorption challenges, methylation sensitivities, or those who prefer a non-methylated B12 option.

Why It's Worth Considering: Pure Encapsulations is a practitioner-trusted brand known for rigorous purity standards; combining two complementary coenzyme forms in a single liquid may offer broader metabolic coverage than single-form tablets.

Inside the formula

Product details

Who it may suit

May be a fit for

  • Practitioners supporting mitochondrial energy metabolism with adenosylcobalamin
  • Clinically-aware adults seeking neurological function support via hydroxycobalamin
  • Individuals with suboptimal B12 absorption preferring a liquid delivery format
  • Protocols requiring both cobalamin forms for comprehensive B12 repletion

Considerations

  • High-dose niacin with liver conditions (monitor liver enzymes)
  • B6 above 100mg/day long-term (risk of peripheral neuropathy)
  • Active cancer treatment (some B vitamins may interfere — consult oncologist)
Compatibility & interactions

Works Well With

Ask Gabriel for personalized stacking recommendations.

Take Separately From

No significant interactions identified. Always consult your healthcare provider.

What to expect over time
Day 1–7

Energy Boost

Noticeable improvement in energy levels

Week 2–4

Mood & Stress

Reduced stress perception, better coping

Month 1–2

Neurological

Improved cognitive clarity and focus

Month 2–3

Homocysteine

Measurable homocysteine reduction (cardiovascular marker)

Based on B-complex supplementation research. Water-soluble — yellow urine color is normal and harmless.

Compare the options

Compare B-Vitamin Forms

Methylated vs Standard vs Synthetic

FeatureMethylated (active)StandardSynthetic (cheap)
B12 FormMethylcobalaminHydroxocobalaminCyanocobalamin
Folate Form5-MTHF (methylfolate)Folinic acidFolic acid (synthetic)
B6 FormP-5-P (pyridoxal-5-phosphate)PyridoxalPyridoxine HCl
Best ForMTHFR variants, optimal absorptionGeneral useBudget (requires conversion)
MTHFR SafeYes — bypasses mutationMostly yesNo — cannot be converted by 40% of population
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Good to know

A few useful answers.

Research & further reading

More category questions

What does methylated mean and why does it matter?

Methylated B vitamins are in their active, bioavailable form — your body can use them immediately without conversion. About 40% of the population has MTHFR gene variants that impair conversion of synthetic folic acid to active folate. Methylated forms (methylcobalamin, methylfolate, P-5-P) bypass this issue entirely.

Why does my urine turn bright yellow after taking B vitamins?

This is completely normal and harmless. Riboflavin (B2) is a bright yellow fluorescent compound. When you take more than your body needs, the excess is excreted in urine, causing the distinctive color. It's actually a sign your body absorbed the B vitamins and is eliminating what it doesn't need.

Can I take B-complex in the evening?

B vitamins support energy production, so morning dosing is generally recommended. Some people find evening B-complex disrupts sleep due to increased energy. However, B6 and B12 are involved in melatonin production, so individual responses vary. If evening dosing doesn't affect your sleep, it's fine.

How do I know if I need B12 specifically?

Signs of B12 deficiency: fatigue, brain fog, tingling/numbness in extremities, balance issues, mood changes, and pale skin. At-risk groups: vegetarians/vegans (B12 is only in animal foods), adults over 50 (reduced absorption), and those taking metformin or PPIs (which deplete B12). A serum B12 test plus methylmalonic acid (more sensitive) can confirm.

Is it safe to take B vitamins every day?

Yes — B vitamins are water-soluble, meaning excess is excreted daily. No accumulation risk at standard supplement doses. The exception is B6 (pyridoxine): chronic doses above 100mg/day can cause peripheral neuropathy (nerve damage). The P-5-P form is safer at higher doses than pyridoxine HCl.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

Pure Encapsulations - Adenosyl/Hydroxy B12 liquid, 1 fl oz