1 Product identity
Ingredient risk
4 ingredients to use with caution
B Complex
Brand21st Century→Other Combinations Tablet or Pill 16 ingredients 4 caution DSLD #43794Net contents: 100 Tablet(s)
Target: Adults and Children 4 years and above
DSLD entry: 2015-03-25
2 Ingredients (16)
IngredientGroupSafety
CelluloseCellulose—
Stearic AcidStearic Acid—
Polyvinyl AlcoholPolyvinyl alcohol—
PEGPolyethylene glycol—
PolysorbatePolysorbate—
Ingredient amounts require the full DSLD label. View full label at NIH DSLD →
⚠️ Use with caution — restricted in some markets
Thiamin — Wernicke encephalopathy: classic triad (confusion, ophthalmoplegia, ataxia) is present in only 16% of cases — any ONE element in an at-risk patie…
Vitamin B6 — Sensory neuropathy from chronic high-dose B6 (>200 mg/day) — presents as numbness, ataxia. Can be irreversible. Often self-prescribed by patients…
Vitamin B12 — Nitrous oxide anesthesia in subclinically B12-deficient patients can precipitate acute combined degeneration — always check B12 before elective p…
Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].
3 Safety cross-reference
Thiamin — Use with Caution
⚠ Very low toxicity
Riboflavin — Generally Safe
⚠ Harmless yellow urine
Niacin — Conditionally Safe
⚠ Flushing at >50 mg
⚠ Hepatotoxicity at high doses
Vitamin B6 — Use with Caution
Folate — Conditionally Safe
⚠ May mask B12 deficiency
⚠ Colorectal cancer risk debated
Vitamin B12 — Use with Caution
Calcium — Conditionally Safe
⚠ Cardiovascular risk debated >1,000 mg/day
⚠ Kidney stones
Sodium — Limited Evidence
⚠ Hypertension
⚠ Fluid retention
Silicon — Generally Safe
⚠ Very low toxicity
Magnesium — Use with Caution
⚠ Diarrhea (especially oxide)
⚠ Accumulates in renal impairment
4 Label claims
• All Other
• Structure/Function
5 Data source
DSLD ID43794
Full labelView at NIH DSLD →
SourceOffice of Dietary Supplements, NIH
Market statusOn market
Entry date2015-03-25
6 More from 21st Century
View 21st Century Safety Scorecard → 179 products
600 + D3 plus Minerals600 Calcium Supplement600+D3600+D3600+D3Acai 1000 mg7 Cite this page
Vancouver
Pkhakadze G. B Complex — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Jun 16]. Available from: https://supplement.ge/products/b-complex-43794/
CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.
GP
Analyzed by SupplementIndex
PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD
Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG
Publisher: PHIG