Supplement analysis backed by scientific evidence · PT

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Limited evidenceStress & mood

Mood Support Formulas

Combination products mixing herbs, amino acids and B vitamins for low mood. A few of the individual ingredients have real trial support, but the finished formulas are almost never tested and often underdose them.

Evidence last reviewed: August 2026

What the science says

  • Some single ingredients do work Moderate evidence

    A systematic review and network meta-analysis of nutraceuticals for depressive disorder found that saffron, St John's wort, omega-3 and SAMe outperformed placebo on depression scores, with effect sizes generally smaller than for antidepressants. Trials were short and mostly in mild to moderate depression.

  • The blends themselves are untested Limited evidence

    A systematic review of phytochemicals in depression identified evidence for individual plants but very little for proprietary multi-ingredient formulas, which rarely carry their own randomized trials.

  • Doses are often below the studied ones Limited evidence

    Commercial mood formulas commonly list six to twelve ingredients at a fraction of the amounts used in the positive single-ingredient trials, so a benefit shown for one ingredient cannot be assumed to carry over.

Dosage & safety

Studied doseNo dose applies to the category. Check the label against studied single-ingredient amounts — for example 30 mg/day of standardized saffron extract or 300 mg three times daily of St John's wort extract.
SafetySt John's wort is a potent CYP3A4 inducer and reduces the effectiveness of oral contraceptives, anticoagulants, immunosuppressants and HIV medicines, and can cause serotonin syndrome with antidepressants — a serious risk hidden inside a multi-ingredient blend. 5-HTP and SAMe carry similar serotonergic interaction risks. These products are not a treatment for moderate or severe depression; seek medical care if mood symptoms are persistent or you have thoughts of self-harm.

Scientific references

Where to buy

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