My Supplement Boost · Daily Essentials
5-HTP
The honest version: the real doses, the evidence graded for what it’s worth, and who should skip this one.
5-HTP · 60 capsules · 30-day supply
A direct serotonin precursor — with the one warning that actually matters in bold.
200 mg of 5-HTP (5-hydroxytryptophan) from Griffonia simplicifolia — the direct precursor your body uses to make serotonin, taken to support mood and emotional well-being.* Sold with its real rationale up front and its serious drug interaction shown, not buried.
Everything on the label
What's actually in it.
A two-capsule serving gives you 200 mg of 5-HTP, extracted from the seeds of Griffonia simplicifolia — a West African plant that's the standard natural source. 5-HTP is the immediate building block your body converts into serotonin, which is why it's taken for mood and sleep.
There's one honest catch worth reading before you buy, and it's about what you can't take alongside it — see the safety section below.
- The calcium is a carrier
- The 328 mg of calcium carbonate is mostly a bulking agent for the capsule, not the point of the product — though it does contribute 25% of the Daily Value for calcium.
- Gelatin capsule — not vegan
- Unlike most of our capsules, this one uses a gelatin shell, which is animal-derived. If you avoid animal products, this isn't your 5-HTP.
Made in the USA in an FDA-registered facility.
** Daily Value not established.
Other Ingredients: Gelatin (capsule), Magnesium Stearate.
The evidence
What 5-HTP does — and what to take seriously.
5-HTP has a real biochemical rationale most mood supplements lack — and, for the same reason, a real safety line. Both are below.
A direct serotonin precursor
This isn't marketing: 5-HTP is the immediate precursor your body uses to make serotonin, and serotonin in turn to make melatonin. That pathway is textbook. It's exactly why it can affect mood and sleep — and exactly why the drug-interaction caution below is serious.
Mood and sleep
Small human studies have found 5-HTP may support mood and sleep, and it's been used for both for decades. But the trials are mostly small and older, so treat it as promising support — not a proven treatment for anything.
Appetite and weight
You'll see 5-HTP marketed for curbing appetite and weight. The evidence there is thin, and we're not going to build a pitch on it.
5-HTP genuinely raises serotonin — which is the reason it can help, and the reason it's dangerous with the wrong medication. We put that warning in bold, not the small print. That's the standard.
Our standard
How to take it
Two capsules. Often in the evening.
Two capsules daily
Take as directed, with water. One bottle is a 30-day supply.
Evening often suits it
Many people take it later in the day, since the serotonin it supports is also the precursor to melatonin.
It can cause drowsiness
Don't pair it with driving or alcohol until you know how it affects you.
The single most important thing about 5-HTP is what you can't take it with. Because it raises serotonin, combining it with an antidepressant or other serotonergic drug can cause serotonin syndrome — a serious reaction. If you take any medication for mood, migraines or pain, do not start this without talking to your doctor. Taken on its own and sensibly, it's a genuine serotonin precursor; taken with the wrong drug, it's a real risk. We'd rather you know that than sell you a "happy pill."
Before you buy
Who should check first.
Do not take 5-HTP with antidepressants or other serotonin-affecting medications without a doctor's supervision. Because 5-HTP raises serotonin, combining it with SSRIs, SNRIs, MAOIs, tramadol, triptans, or St. John's Wort can cause serotonin syndrome — a serious, occasionally life-threatening reaction. This is the most important line on the page, and we won't soften it.
Also do not take this, or check with your doctor first, if you:
- Take any antidepressant or serotonergic drug — SSRIs, SNRIs, MAOIs, tramadol, triptans, St. John's Wort. This is the big one.
- Are having surgery — tell your anesthesiologist, since serotonergic drugs are often used during surgery.
- Are pregnant, nursing, or under 18 — skip it without medical advice.
- Will be driving or drinking — 5-HTP can cause drowsiness.
The capsule shell is gelatin, which is animal-derived. If you avoid animal products, this particular product isn't for you — worth knowing before the bottle arrives.
Straight answers
5-HTP questions, answered.
What is 5-HTP?
5-HTP (5-hydroxytryptophan) is the direct precursor your body uses to make serotonin — here 200 mg per serving, extracted from Griffonia simplicifolia seeds. It's taken to support mood and emotional well-being.* It is not a treatment for depression or any condition.
Can I take it with my antidepressant?
Not without a doctor's supervision. Because 5-HTP raises serotonin, combining it with SSRIs, SNRIs, MAOIs, tramadol, triptans or St. John's Wort can cause serotonin syndrome — a serious reaction. This is the single most important thing to know about 5-HTP.
When should I take it?
Two capsules daily. Many people take it in the evening, since the serotonin it supports is also the precursor to melatonin. It can cause drowsiness, so don't pair it with driving or alcohol.
Does it actually work for mood or sleep?
Honestly: 5-HTP is a genuine serotonin precursor, and small studies suggest it may support mood and sleep — but the trials are mostly small and older. Treat it as promising support, not a proven treatment.
Is it vegan?
No — the capsule is gelatin, which is animal-derived. If you avoid animal products, this particular product isn't for you.
What's the calcium doing in it?
The 328 mg of calcium carbonate is mostly a carrier and bulking agent for the capsule. It does contribute 25% of the Daily Value for calcium, but it isn't the reason to take the product.
Our standard
Why we stock it.
A direct serotonin precursor at a standard 200 mg dose — sold with its serious drug interaction in bold, not buried.
5-HTP is one of the few mood supplements with a real biochemical rationale — and one of the few where the wrong drug combination is genuinely dangerous. We'd rather put the serotonin-syndrome warning front and center, and be honest that the mood evidence is promising-not-proven, than sell it as a happy pill. That's the whole business.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.