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Oral GABA and sleep: what the human trials actually show
Small GABA studies suggest a sleep-onset effect, but blood absorption, better sleep and a proven insomnia treatment are different questions.
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Research, explained. Explore peptides, supplements and hormone health with clear, practical breakdowns of what the studies actually tell us.
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Supplements9 min read
Spore-based probiotics: what survival can—and cannot—tell you
How spore survival differs from symptom relief, and what specific Bacillus clausii trials can tell you about choosing a probiotic.
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Theanine plus caffeine: calmer focus or a more complicated stimulant routine?
What human trials say about adding theanine to caffeine, from attention tests to jitteriness, blood pressure and everyday tolerability.
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Rhodiola for burnout: fatigue is an outcome, not a diagnosis
Rhodiola's controlled fatigue trials disagree. Learn what the burnout studies measured, why cortisol is not a diagnosis and where assessment fits.
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Can phosphatidylserine calm the stress response without dulling performance?
Small phosphatidylserine studies separate hormone changes from calmness, exercise capacity and recovery. A lower cortisol result does not establish all four.
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Shilajit: check the preparation before the vitality claim
Shilajit research tested defined preparations. Learn how hormone, strength and bone findings differ—and what a quality report should clarify.
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Maca and libido: a benefit would not prove testosterone increased
Maca’s small trials sometimes report sexual symptom benefits without testosterone changes. Learn what improved, what did not and why the distinction matters.
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Supplements9 min read
Chamomile tea and capsules: what the sleep studies actually tested
Tea, extract capsules and inhaled chamomile oil have been tested in different people with different controls. Here is what their sleep findings mean.
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Supplements8 min read
Lemon balm for calm: what single-herb and combination trials show
Lemon balm studies reveal different effects on calmness, alertness and sleep—and explain why a blend cannot prove each ingredient's claims.
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Synbiotics: does combining a probiotic with its food improve symptoms?
What whole-formula trials tell us about synbiotics, IBS and constipation—and why combining ingredients does not automatically demonstrate synergy.
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Lion’s mane and brain fog: the gap between a mechanism and a useful trial
Lion’s mane has preliminary cognitive findings, but small mixed trials and laboratory mechanisms do not establish a remedy for brain fog.
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Supplements8 min read
Glycine for sleep: what the small human studies actually show
Glycine's sleep studies measure different things: the night itself, morning feelings and daytime performance. Here is what those small experiments found.
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