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Evidence-Based Supplement Research
Evidence-Based Supplement Research

Best Supplements for Improved Skin Hydration

Ranked by research evidence. Compare 16 supplements across 28 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.

Top picks by evidence

  • Low evidence10 studies

    Across 10 studies, all reported beneficial effects of Lactobacillus brevis SBC8803 on skin hydration, with predominantly small effect sizes. The most studied dose range is 25–50 mg/day (as heat-killed cells), and effects were observed in adults with slightly elevated transepidermal water loss, particularly middle-aged women. Only one study reached statistical significance, and the evidence base is heavily reliant on secondary reviews.

    Dose: 25–50 mg/day (heat-killed cells)
16 supplements
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