SKU: 96348244375

Thorne 5-Hydroxytryptophan (Formerly Griffonia) 90 Capsules

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Description

Thorne 5-Hydroxytryptophan (Formerly Griffonia) 90 CapsulesThorne 5 Hydroxytryptophan (Formerly Griffonia) 90 Capsules 5 Hydroxytryptophan (5 HTP) is the intermediate metabolite produced when the body initiates the process of converting the essential amino acid L tryptophan to serotonin.* Serotonin levels in the body are associated with the regulation of sleep, mood, aggression, appetite, temperature, sexual behavior, and pain sensation.* Supplementing with 5 HTP to facilitate serotonin production is

Thorne 5-Hydroxytryptophan (Formerly Griffonia) 90 Capsules

5-Hydroxytryptophan (5-HTP) is the intermediate metabolite produced when the body initiates the process of converting the essential amino acid L-tryptophan to serotonin.* Serotonin levels in the body are associated with the regulation of sleep, mood, aggression, appetite, temperature, sexual behavior, and pain sensation.*

Supplementing with 5-HTP to facilitate serotonin production is preferable to supplementing with L-tryptophan because, unlike L-tryptophan, 5-HTP cannot be shunted into niacin or protein production. Supplementation with 5-HTP bypasses the conversion of L-tryptophan into 5-HTP by the enzyme tryptophan hydroxylase, the rate-limiting step in the synthesis of serotonin and a step that can be inhibited by a number of factors, including stress, insulin resistance, increasing age, and deficiencies of vitamin C, folate, and iron.*

Intestinal absorption of 5-HTP does not require the presence of a transport molecule and is not affected by the presence of other amino acids; therefore, it may be taken with meals without reducing its effectiveness.* 5-HTP easily crosses the blood-brain barrier and effectively increases central nervous system (CNS) synthesis of serotonin.*

To further facilitate serotonin production, Thorne Research's 5-HTP formula contains pyridoxal 5'-phosphate, the active form of vitamin B6 which is a cofactor for the conversion of 5-HTP to serotonin.* 5-HTP is commercially produced by extraction from the seeds of the African plant, Griffonia simplicifolia.

*Disclaimer

These statements have not been evaluated by Health Canada or the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

Please be advised: Thorne Research is a professional line and can only be sold under the recommendation and supervision of a practitioner.


Nutrition Facts
Serving Size: 2 Capsules



Amount Per Serving



% Daily Value *
Vitamin B6 (as Pyridoxal 5'-Phosphate) 6.8 mg 340%
5-Hydroxytryptophan 100 mg *
* Percent daily values are based on a 2000 calorie diet
† Daily Value not established
Note: Serving Sizes are rounded to the nearest whole serving

Other Ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide.

Recommended Use: Adults: Take with food.

To promote healthy mood balance: Take 1-2 capsules three times daily or as recommended by a health-care practitioner. To minimize the risk of gastrointestinal side effects, start dosing at 1 capsule three times daily and slowly increase to effective dose over a period of 2 weeks.

For use as a sleep aid: Take 2-4 capsules daily or as recommended by a health-care practitioner. Take 30-45 minutes before bedtime.

Warning: Consult a health-care practitioner prior to use: if you are pregnant or breastfeeding; if symptoms persist or worsen; if sleeplessness persists continuously for more than 3 weeks (chronic insomnia). Consult a health-care practitioner prior to use if you are taking carbidopa or drugs/supplements with serotonergic activity. These may include, but are not limited to, L-tryptophan, S-adenosylmethionine (SAMe), St. John’s wort, antidepressants, pain killers, over the counter cough and cold medication containing dextromethorphan, anti-nausea medication and anti-migraine medication. Some people may experience diarrhea, nausea, vomiting, and abdominal pain. Discontinue use and consult a health-care practitioner if you show signs of weakness, oral ulcers, or abdominal pain accompanied by severe muscle pain or if you experience skin changes. Do not use if you have scleroderma. Some people may experience drowsiness. Exercise caution if operating heavy machinery, driving a motor vehicle or are involved in activities requiring mental alertness.

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SKU: 96348244375

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kkl
Battle Creek, US
★★★★★ 5
Very good product
Size: Medium, Color: (001) Black / Black / Pitch Gray
I purchased these to wear inside lowcut slip on casual shoes, I don't particularly like to not wear socks in my shoes for hygienic reasons. Prior to purchasing these socks, all I could find were those made of very light beige hosiery type material , and my slip on shoes would slide around a bit. These are light weight and breathable athletic type material, with a very good gripper strip at the heel. One pair of my slip on casual shoes have a particularly lower cut in the toe area, but the shoe is black and I chose the black color and though I see a hint of the sock there, it matches and does not detract from the look of the casual solid black shoe
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Reviewed in the United States on May 15, 2026
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Anna Wylda
Belleville, US
★★★★★ 5
They stay out! No more sock wads!
Size: Medium, Color: (100) White / White / Mod Gray
Best no show socks ever made!!!!! I've been struggling for 2 years to find ones that actually stay on your foot, even other national brands, and I just became content wearing my sneakers without socks. They ALWAYS slid down into my show & I ended up walking on a wad of sock until I could fix it...or usually just took them off after a couple of tries. Enter Under Armor!!! They a mid weight, but not very thick & still breathable. They work too by actually staying on your foot! Not once have they slid down into my show!! Very comfortable but they could be a little more affordable.
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Reviewed in the United States on August 1, 2025
R
Verified Purchase
Rebekah
Boise, US
★★★★★ 5
Love!
Size: Large, Color: (100) White / White / Mod Gray
Ive tried so many no show socks but I love these. This is the 3rd set I've bought. They never slip off and the material is thin and breathable. Perfect for working out.
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Reviewed in the United States on March 2, 2026
B
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Becky
Lowell, US
★★★★★ 5
True no-show socks that don’t slide down!
Size: Medium, Color: (100) White / White / Mod Gray, Size: Medium, Color: (100) White / White / Mod Gray
This is the first pair of no-show socks I’ve tried that actually don’t slide down into my shoes. Trust me… I have tried lots of different pairs and this is the one! They fit perfectly. They’re not too thick and they’re obviously durable because I wash them after each wear, so daily.
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Reviewed in the United States on March 21, 2026
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Raquel Hall
Massapequa, US
★★★★★ 4
Great fit but expensive
Size: Medium, Color: (252) Blush Beige / White / Castlerock
These are really great socks. I love them, but they are definitely pricey.
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Reviewed in the United States on March 30, 2026

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