You're getting 300mg of **Magnesium** per scoop — right in the upper range of clinical supplemental doses (100–400mg) and well-positioned for stress reduction, sleep support, and muscle relaxation. The citrate form absorbs significantly better than oxide and dissolves easily in water, which makes this powder format particularly practical for hitting a solid dose without swallowing multiple capsules.

**Magnesium** deficiency affects an estimated half the population, and standard blood tests often miss it because serum levels don't reflect intracellular stores. At 300mg, you're close to the 350mg supplemental upper limit, so one scoop daily is the sweet spot — stacking this with other magnesium-containing supplements could push you over.

The citrate form does have a mild laxative effect, which is worth knowing if you have a sensitive stomach. If your primary goal is sleep or stress support specifically, glycinate or threonate forms may offer more targeted benefits — but for broad magnesium repletion at a clinically meaningful dose, this delivers.

BioStacks Logo
BioStacks

Natural Factors Stress-Relax

Magnesium Citrate Tropical Drink Mix

Powder · 75 servings · $0.28/serving

78 / 100Good

Score Breakdown

Formulation
82
Safety
95
Final score
78/100

Ingredients (2)

1 scored · 1 not scored

Magnesium300 mg

Optimal dose

Stevia leaf powder15 mg

No clinical data

Label Nutrition Facts

Active Ingredients

From the label · % Daily Value

DV%

Magnesium300 mg

150%

Stevia leaf powder15 mg

Other Ingredients

Fillers, coatings, and additives

natural Tropical Flavor (flavor)

Unknown

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Products that cover similar health dimensions based on their ingredients.

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.