5-HTP 100mg by Ortho Molecular Products

If you’re considering 5-HTP for sleep or mood, this 100 mg capsule fits adults with trouble winding down at night, early‑morning awakenings, or low mood tied to stress. It’s a reasonable first step if you prefer a serotonin precursor over prescription options and your symptoms are mild to moderate. Check basics too: low Vitamin B6 or low Magnesium (both measurable on labs) can bottleneck serotonin production. For persistent depression, panic, or bipolar symptoms, involve a clinician rather than self-treating.

5-HTP is the direct building block your body uses to make serotonin (the neurotransmitter that steadies mood and sets sleep timing), and then melatonin (the hormone that cues sleep). It crosses the blood–brain barrier (the filter protecting the brain) and is converted to serotonin by an enzyme that uses Vitamin B6 as a cofactor. Compared with tryptophan, 5-HTP skips an earlier step and faces less competition from other amino acids, which is why some people notice effects on sleep within days and on mood over 1–4 weeks.

Start with 100 mg in the evening 30–60 minutes before bed for sleep. For daytime mood, use 100 mg once to three times daily. Sensitive stomach? Take with a small snack; otherwise empty stomach is fine. Typical ceiling without supervision is 300 mg per day. Many notice calmer sleep in 3–7 days; mood shifts often take 1–2 weeks, with fuller effects by 4 weeks. Ensuring adequate Vitamin B6 and Magnesium helps this pathway work efficiently.

Do not combine 5-HTP with antidepressants that raise serotonin (SSRIs, SNRIs, MAOIs), linezolid, tramadol, triptans, dextromethorphan, or St. John’s wort due to serotonin syndrome risk (agitation, sweating, fast heart rate). Use caution with carbidopa for Parkinson’s disease. Alcohol can worsen sedation. If you’re switching from or adding to a prescription, coordinate a taper or washout with your prescriber and consider monitoring with them during the first weeks.

Avoid in pregnancy and while breastfeeding. Skip if you have bipolar disorder or a history of mania, as serotonergic agents can trigger mood elevation. Stop and seek care for severe nausea, vomiting, agitation, or headaches. If you’re being evaluated for a serotonin-secreting tumor, 5-HTP can confound testing like 5-HIAA urine results. For children or for moderate to severe depression or anxiety, use only under clinician guidance.