← All magnesium products · More from Purity Products →
Clinically dosed — the label discloses at least as much magnesium per serving as clinical trials used. The black tick on the bar marks the trial dose.
Under clinical dose — the label is honest about the amount, but it's less than the studies used, so the studied effect may not apply.
Dose not disclosed — the label doesn't let you verify the amount at all (usually a "proprietary blend" that only prints the mixture's total weight).
Data verified 2026-07-08 · Scored against: NIH ODS Magnesium Fact Sheet: adult male RDA 400mg/day (19-30yr) elemental magnesium. How scoring works →
Check price → (affiliate link — never affects a score)
Educational information from the product's own label data, not medical advice. Some outbound links may earn us a commission — it never changes a product's dose score. Label data can lag reformulations; the linked NIH DSLD entry is the label we scored.
You can't tell from the label. Purity Products Zestrogen does not disclose a verifiable magnesium amount per serving, so there's no way to confirm it reaches the 400 mg/day clinical dose.
Clinically dosed, no-blend options include: Nutra Sport Magnesium (400 mg); VitaCeutical Labs Mega Magnesium (400 mg); Natural Nutra Mega Magnesium (400 mg). All disclose at least 400 mg per serving on the label.
Every clinically dosed, no-blend product in this category — free, plus score-change alerts.