Bluebonnet Nutrition 5-HTP 100mg
A 5-HTP capsule from Griffonia simplicifolia seed, marketed for weight management, mood, relaxation and occasional sleeplessness. Its most useful disclosure is one almost no competitor makes: a guarantee that the product is free of Peak-X, the contaminant historically associated with serious adverse reactions in this ingredient class. Note the label arithmetic — 100 mg in the name, 500 mg of seed extract per serving.
Last reviewed · researched from the manufacturer’s published pages by Tom
What’s in it
Amounts are shown only where the manufacturer publishes them. Anything without a figure is undisclosed — and for an active ingredient, an undisclosed dose is the central problem with this category.
- 5-Hydroxytryptophan (5-HTP)100 mg per capsule, from 500 mg of Griffonia simplicifolia seed extract per serving
5-HTP is the direct precursor to serotonin
How the manufacturer says it works
Bluebonnet states the capsules are formulated with 5-hydroxytryptophan extracted from the seed of the African plant Griffonia simplicifolia to help support healthy weight management, mood, relaxation and occasional sleeplessness, may help with neurotransmitter support and positive mood, and are guaranteed free of Peak-X, non-GMO, vegan, kosher certified, gluten free and soy free.
What the evidence actually supports
5-HTP is the immediate precursor to serotonin, and serotonin genuinely influences satiety — this is a real mechanism rather than an invented one, and small trials have reported reduced food intake. The Peak-X guarantee is the standout disclosure: Peak-X is a contaminant found in some tryptophan and 5-HTP products and is associated with the eosinophilia-myalgia syndrome outbreak linked to contaminated L-tryptophan in the late 1980s. A manufacturer naming and excluding it is addressing a real historical safety problem that most sellers of this ingredient simply do not raise. Certification detail — non-GMO, vegan, kosher, gluten and soy free — is also fully published.
Where that evidence stops
The trials on 5-HTP and appetite are small, old and short, and the ingredient is not established as a weight loss intervention. The serious limitation is interaction: because 5-HTP raises serotonin, combining it with SSRIs, SNRIs, MAOIs, triptans, tramadol or other serotonergic drugs carries a genuine risk of serotonin syndrome, which can be life-threatening. That is not a theoretical caution — it is the single most important thing about this ingredient, and it is not stated on the page we captured. 5-HTP has nothing to do with GLP-1. The naming is also potentially confusing: 100 mg refers to the 5-HTP content per capsule while 500 mg describes the seed extract it comes from.
Strengths and problems
Strengths
- Guarantees freedom from Peak-X, addressing a genuine historical contamination problem
- Publishes both the 5-HTP amount and the seed extract it derives from
- Full certification detail published — non-GMO, vegan, kosher, gluten and soy free
- Serotonin's role in satiety is a real mechanism rather than an invented one
Problems
- No warning about serotonergic drug interactions, which is the key safety issue with 5-HTP
- Appetite trials are small, old and short; not established for weight loss
- The 100 mg and 500 mg figures could be read as contradictory without care
- Nothing to do with GLP-1 despite the category adjacency
- Directions and refund terms were not published on the page we captured
What the manufacturer publishes
Publishes 3 of 8 standard terms.
- Intended use
- Sold as a dietary supplement to support healthy weight management, mood, relaxation and occasional sleeplessness, not as a treatment for any condition.
- Directions
- Not publicly disclosed on the pages we captured.
- Warnings
- Not publicly disclosed on the pages we captured.
- Allergens
- States non-GMO, vegan, kosher certified, gluten free and soy free.
- Third-party testing
- States the product is guaranteed free of Peak-X.
- Pricing
- $21.95 and $39.95 depending on count, at capture.
- Subscription
- Not publicly disclosed on the pages we captured.
- Refunds
- Not publicly disclosed on the pages we captured.
- Shipping
- Not publicly disclosed on the pages we captured.
May suit
Someone interested in 5-HTP for mood or sleep who takes no serotonergic medication and has confirmed that with a pharmacist.
Do not use if
- You take an SSRI, SNRI, MAOI, triptan, tramadol or any other serotonergic medication — serotonin syndrome is a real risk
- You are pregnant or breastfeeding
- You have a history of carcinoid syndrome or take carbidopa
- You are buying it primarily for weight loss
Frequently asked
What is the serotonin syndrome risk?
Real and worth taking seriously. 5-HTP raises serotonin directly, and stacking it with antidepressants, migraine triptans, tramadol or other serotonergic drugs can push serotonin too high — causing agitation, rapid heart rate, high temperature, tremor and in severe cases a medical emergency. Antidepressant use is common, and people looking at appetite supplements are not less likely to be taking one. Check with a pharmacist before starting 5-HTP, whichever brand you buy.
What is Peak-X?
A contaminant that has been detected in some tryptophan and 5-HTP products. It matters because contaminated L-tryptophan was linked to an outbreak of eosinophilia-myalgia syndrome in the late 1980s, a serious and sometimes fatal condition, which led to the ingredient being withdrawn for years. A manufacturer guaranteeing its absence is addressing a genuine historical problem — and it is a reasonable thing to ask any 5-HTP seller about.
Sources
Captured . Manufacturer pages change — check the current version before relying on anything.