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Head-to-head evidence comparison — which supplement is right for you?
5-HTP wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
6 of 7 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
2 of 2 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both 5-HTP and Skullcap have evidence — compare verdict strength side-by-side.
50-100mg for sleep; 150-300mg for mood
For sleep: 30-45 minutes before bed, For mood: 2-3 divided doses with meals
Capsules
350-450mg dried herb OR 1-2ml tincture (1:5), up to 3x daily
Before bed for sleep, During day for anxiety as needed
Fresh plant tincture (most traditional)
2-4 weeks
1-2 weeks
2-4 weeks
First 1-2 weeks
30-60 minutes
30-60 minutes before bed
Early pharmacological interventions for universal prevention of post-traumatic stress disorder (PTSD)
The Cochrane database of systematic reviews (2022) · Systematic review · n=2023
This review provides uncertain evidence only regarding the use of hydrocortisone, propranolol, dexamethasone, omega-3 fatty acids, gabapentin, paroxetine, PulmoCare formula, Oxepa formula, or 5-hydroxytryptophan as universal PTSD prevention strategies.
Combination pharmacotherapy for the treatment of fibromyalgia in adults
The Cochrane database of systematic reviews (2018) · Systematic review · n=1474
Two studies only reported any primary outcomes of interest (patient-reported pain relief of 30%, or 50%, or greater).
The Impact of 5-Hydroxytryptophan Supplementation on Cognitive Function and Mood in Singapore Older Adults: A Randomized Controlled Trial
Nutrients (2025) · Rct · n=30
Results: A significant time effect was observed in the MoCA score, which was mainly explained by a significant increase in the 5-HTP group (week 0 vs. week 12: 26.6 ± 1.4 a.u. vs. 27.6 ± 1.4 a.u., p < 0.05).
Baicalin and baicalein against myocardial ischemia-reperfusion injury: A review of the current documents
Tissue & cell (2025) · Systematic review
Research in both animal and cell models suggests that these flavonoids, especially baicalin, can restore cardiac health following MIRI, improving cardiac performance, and reducing cardiac damage.
Promising Role of the Scutellaria baicalensis Root Hydroxyflavone-Baicalein in the Prevention and Treatment of Human Diseases
International journal of molecular sciences (2023) · Systematic review
It has been documented that the extract of Baikal skullcap (Scutellaria baicalensis) has hepatoprotective, calming, antiallergic, and anti-inflammatory properties.
Wogonin and its analogs for the prevention and treatment of cancer: A systematic review
Phytotherapy research : PTR (2022) · Systematic review
WOG, in combination with established chemotherapeutic drugs, improves the efficacy of treatment and lowers toxicity.
Limited evidence from small RCTs (n=30, n=166). Effectiveness constrained by mixed study populations and preliminary findings. Higher doses associated with increased nausea risk.
Based on single crossover RCT (n=43) showing significant group effect for mood in healthy volunteers. Study population was relatively non-anxious (81% mildly anxious or less). Carryover effects noted. Limited evidence base requires further validation in clinical populations.
AI-estimated from published studies. Interpret as directional guidance.
5-HTP has a higher evidence score (5.5/10 vs 4/10) and wins in 2 of 3 categories.
For reduce anxiety & stress, Skullcap has a higher relevance score (75 vs 60).
No known interactions between 5-HTP and Skullcap have been documented in our database. However, always consult a healthcare provider before combining supplements.