BioStacks
Source Naturals

Advanced B-12 Complex 5 mg

1 Lozenge · 30 servings · $0.37/serving

iHerbAmazon

Best for

Energy

Ingredients (2)

Vitamin B-12

100%

Dose

5000 mcg

Target

250–5000 mcg

Form

Premium

Folate

100%

Dose

400 mcg DFE

Target

400–800 mcg

Form

Budget

Other Ingredients (5)

MannitolSweetener

A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at higher doses. Supplement amounts are typically small, but individuals with IBS or sugar alcohol sensitivity may react even at low doses.

SorbitolSweetener

A FODMAP sugar alcohol that may trigger GI discomfort (bloating, gas) in individuals with IBS or sorbitol malabsorption, even at small amounts found in supplements. Avoided in low-FODMAP diets.

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Natural Cherry FlavorFlavor

A flavoring derived from natural cherry sources

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Best taken in the morning

Many people prefer it earlier in the day; there's no evidence timing changes anything. Absorption is fine with or without food.

With or without food

On the label

1 lozenge daily. For best results, allow to dissolve in the mouth before swallowing.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$10.97

$10$20$50

Cheaper than 77% of 250 vitamin B12 supplements

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

5-MTHF / B12 MC 2000

DaVinci Laboratories

5-MTHF / B12 MC 2000

🤰 for Pregnancy

99
Methyl Combo

Nature's Sunshine

Methyl Combo

🤰 for Pregnancy

99
Better B12

INNOSUPPS

Better B12

🤰 for Pregnancy

98
L-Methylfolate 5-MTHF + B12

NatureWise

L-Methylfolate 5-MTHF + B12

🤰 for Pregnancy

98
B12 Folate

Pure Encapsulations

B12 Folate

🤰 for Pregnancy

98

Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart
© 2026 BioStacks. All rights reserved. Not medical advice.