BioStacks
NOW

Instant Energy B12

Powder · 1 Gram · 75 servings

49 / 100Average

Best for

Score Breakdown

Formulation
59
Safety
80
Final score
49/100

Ingredients (9)

Vitamin B-12

100%

Dose

2000 mcg

Target

250–5000 mcg

Form

Standard

Pantothenic Acid

60%

Dose

30 mg

Target

50–500 mg

Form

Premium

Thiamine

6%

Dose

1.5 mg

Target

25–100 mg

Form

Premium

Vitamin B6

8%

Dose

2 mg

Target

25–100 mg

Form

Premium

Niacin

80%

Dose

20 mg

Target

25–500 mg

Form

Standard

Other Ingredients (5)

MaltodextrinBinder

Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.

XylitolSweetener

A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at moderate doses (>10-20g/day), though supplement amounts are typically small. Extremely toxic to dogs — households with pets should store securely.

Natural FlavorsFlavor

Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Citric AcidAcidulant

Natural acid derived from citrus fruits

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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.