Vitacost Ratings and Reviews
5-HTP (293)
7-Keto (48)
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Top Rated Product
NSI 5-HTP -- 200 mg - 120 Capsules

NSI 5-HTP -- 200 mg - 120 Capsules

5-HTP increases serotonin levels in the brain which may positively enhance mood, sleep and weight management! How Does NSI® 5-HTP 200 mg work? -HTP, or 5-hydroxytryptophan, is a precursor to the neurotransmitter serotonin - which is essential for controlling mood, sleep and pain levels. The body produces 5-HTP from tryptophan, an amino acid found in small amounts in high-protein foods such as chicken, fish, beef and dairy products. It can also be taken in supplemental form, in which case it's extracted from the seeds of the Griffonia simplicifolia plant. 5-HTP is believed to help increase serotonin production in the brain, which may positively influence mood. 5-HTP may also help with other health issues related to serotonin deficiency, including nervousness, body tension and stiffness and head cavity discomfort. Certain elements of sleep are also believed to be affected by 5-HTP. Supplementing may not only assist with falling asleep faster, but also with increasing the duration of dream states (REM sleep) and of deep slumber. 5-HTP may also promote weight management by helping to reduce cravings for sweets and starches, which may help contribute to healthier overall eating habits. For best results and quickest absorption, take 5-HTP on an empty stomach. Do not take 5-HTP for more than three consecutive months without consulting a healthcare practitioner. NSI® 5-HTP 200 mg is better because it:. Is a higher-dose of 5-HTP, ideal for maintaining mood, sleep, and weight management after smaller-dose tolerance has been established. Is available at a better value than other 5-HTP products on the market.  . Did You Know? All NSI supplements are packaged in HDPE (High Density Polyethylene) bottles. These bottles keep moisture vapor out, protecting the freshness and integrity of their contents, and are 400% more effective compared other brands currently using PET (Polyethylene Terephthalate) bottles. HDPE bottles do not break as glass can and are also recyclable so we urge you to please recycle them.

Average Customer Rating: 4.6 out of 5 4.6 out of 5
39 of 43 (91%) customers would recommend this product to a friend.

Customer Reviews for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Great deal on 5-HTP, October 19, 2009
By CharlieAngel from Central Coast of California
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I use this product both to help my mood and to sleep better and find it helpful for both. The price is good and the potency is higher than most other brands."

Age: 55-64
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Over 180 days
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Review 2 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 2 out of 5 2 out of 5
Just doesn't work, October 12, 2009
By TimL2
Value: 2 out of 5 2 out of 5
Quality: 3 out of 5 3 out of 5
Effectiveness: 1 out of 5 1 out of 5
Satisfaction: 2 out of 5 2 out of 5

"Just doesn't work, at least for me. In fact, I seem to have slept better on nights I didn't take it."

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Review 3 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 4 out of 5 4 out of 5
Good for a week, September 26, 2009
By Haydensmommy from Cathedral City
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 4 out of 5 4 out of 5
Satisfaction: 4 out of 5 4 out of 5

"At first I thought this was a great pill to help with sleeping. I found that after a week of taking the pill it didn't work as well. So I stopped using it for a week and then tried again. So it shouldn't be used every night I guess. As far as cutting back on sweets, I did notice that I didn't crave it as much, that helps."

Age: 35-44
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Less than 30 days
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Review 4 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 4 out of 5 4 out of 5
Works as promised, September 22, 2009
By kingtwosheds from Misawa, Japan
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 4 out of 5 4 out of 5

"I noticed the effects of the 5-HTP after a few days in a row of taking it before bed. They work great for mellowing out your mind and triggering your body's "sleep switch". The reason I gave 4 stars instead of 5 is because of one side effect I noticed. The 5-HTP mellow feeling seemed to last into the first several hours of my morning leaving my mind not feeling fully activated. Tip: Do not take 5-HTP longer than the product recommends."

Age: 25-34
Gender: Male
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: 30-60 days
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Review 5 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Better Sleep, September 17, 2009
By Lowiebadowie
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I have always suffered from insomnia and have taken many supplements including melatonin with only limited results. This product improved my sleep almost immediately!"

Age: 35-44
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
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Review 6 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
September 5, 2009
By Jeniece from Southern California
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"This helps so much for mood. I can definitely tell that it improves my attitude, which is really helpful since I'm in school with a full load and a hard major.
I don't take this regularly, usually just when I'm having a bad day. But I sometimes take it before I do cardio, which gives me a nice serotonin boost while i work out.
"


Age: 18-24
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Over 180 days
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Review 7 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
This is the product for me, August 29, 2009
By ILOVEQUILTING from CA
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"My doctor recommende 5-HTP for my insomnia. There are no side effects and helps me sleep all night. This 5-HTP is the most effective and most economical of the other brands I've tried.
At 200mg instead of 100mg in other dosages and brands, this is the easiest to take every night.
"


Age: 55-64
Gender: Female
Reason for usage: Specific health concern
Duration of use: Over 180 days
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Review 8 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
POTENT, July 21, 2009
By Bombfishing from NYC, NY
Value: 4 out of 5 4 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"this is the highest dosage I have come across. it rules because you only need to take one. and it works great every time. great mood booster."

Age: 25-34
Gender: Male
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Over 180 days
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Review 9 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Wonderful Product, July 19, 2009
By Ansaam from Minnesota
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I am amazed at how this product works. I have slept more soundly since taking this product. I also seem more relaxed."

Age: 55-64
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Other
Reason for usage: Promote overall health
Duration of use: 30-60 days
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Review 10 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 1 out of 5 1 out of 5
July 1, 2009
By Coconut123 from Sunnyvale, CA
Value: 1 out of 5 1 out of 5
Quality: 1 out of 5 1 out of 5
Effectiveness: 1 out of 5 1 out of 5
Satisfaction: 1 out of 5 1 out of 5

"It doesn't seem to work for me. I will keep trying though. Won't give up so soon."

Age: 55-64
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Less than 30 days
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Review 11 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Great Product, I Couldn't Recommend It Enough, June 16, 2009
By AlexandrAnne from New England
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"-This takes a week to kick in for me, and only a day to wear off if I forget to take it.
- Don't take it in the morning like I did! This is a great sleep aide, and absolutely helped with my insomnia. When I first started using this product, I used no other supplement besides for a multi-vitamin, so I attribute my sleeping through the night on this product alone.
- It makes me feel like its not the end of the world when I get upset. It has helped me stay in control of emotions during stressful situations, which is a huge problem for me otherwise. It also generally makes me happier - just a better outlook on life.
- I 100% recommend this product to anyone with these problems - this has become a staple in my life.
"


Age: 18-24
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Over 180 days
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Review 12 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Excellent Buy, May 6, 2009
By jeaninemarie from East Coast
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"This does what it says it does. I sleep rather well, aches in my back & neck seem to have disappeared, and my mood has improved."

Age: 35-44
Gender: Female
Daily supplement usage: 1-2 supplements daily
Referral source: Other
Reason for usage: Specific health concern
Duration of use: Over 180 days
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Review 13 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
This works!, April 14, 2009
By ML47
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"You will sleep much better and your outlook will be improved. A win-win situation.. I had to have minor surgery and was having a rough time coping with this. I felt that it was vital that I improve my outlook. 5HTP put me on a even keel. I sleep better and my posititve outlook has resurfaced. Incredible. Thanks NSI."

Age: 55-64
Gender: Female
Daily supplement usage: 3-5 supplements daily
Referral source: Other
Reason for usage: Specific health concern
Duration of use: Less than 30 days
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Review 14 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 2 out of 5 2 out of 5
Just Didn't Work for Me, March 11, 2009
By PrimeChuck from Houston, TX
Value: 3 out of 5 3 out of 5
Quality: 3 out of 5 3 out of 5
Effectiveness: 1 out of 5 1 out of 5
Satisfaction: 2 out of 5 2 out of 5

"I have used the 5-HTP for several weeks on and off. It does promote sleep somewhat, but I still do not sleep through the night. I get about the same effect with 2 tylenol capsules."

Age: 55-64
Gender: Male
Daily supplement usage: 3-5 supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Less than 30 days
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Review 15 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Pleasantly surprised, March 9, 2009
By Surfdog from Santa Cruz
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I have tried a number of sleep assisting natural remedies in the past. Most of them are either very expensive, don't really work or leave you feeling sluggish the next day. With 5-HPT I was still able to get back to sleep during the night whenever I awoke but had no "hangover" the following morning. So all in all I rate this product very high."

Age: 55-64
Gender: Male
Daily supplement usage: 6+ supplements daily
Referral source: Other
Reason for usage: Promote overall health
Duration of use: Less than 30 days
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Review 16 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Helps with Migraines and Mood, February 14, 2009
By JulestheRunner from Texas
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I have been taking this on the recommendation of my neurologists for my migraine headaches. It really helps. It doesn't get rid of them it has cut down the amount I have. I have tried EVERYTHING and this has been the best so far. It is an amino acid, a precurser to serotonin uptake, important neurotramsmitter for your brain. It also help with your mood and PMS symptoms."

Age: 45-54
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Physician
Reason for usage: Specific health concern
Duration of use: 30-60 days
2 of 2 people found this review helpful.
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Review 17 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
Best Price Anywhere, January 8, 2009
By Sojourner from Olean,NY
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"I enthusiastically recommend this product as the best deal, best price. I've used other brands and it can get quite pricey. This brand works great and saves money."

Age: 35-44
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Self-referred
Reason for usage: Specific health concern
Duration of use: Over 180 days
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Review 18 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
It works for me., December 31, 2008
By Buster25
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"Helps to brighten your outlook and make you feel better."

Age: 25-34
Gender: Male
Daily supplement usage: 1-2 supplements daily
Referral source: Self-referred
Reason for usage: Promote overall health
Duration of use: Less than 30 days
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Review 19 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
SLeep Aid, December 14, 2008
By Bartnbabs from Naples, FL

"5-HTP is a wonderful product. Have used for years to help with sleep. No side effects. It is natural, decreases in our body with age and NSI has the best prices anywhere. Highly recommend it1"

Age: 45-54
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Physician
Reason for usage: Specific health concern
Duration of use: Over 180 days
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Review 20 for NSI 5-HTP -- 200 mg - 120 Capsules

Overall Rating: 5 out of 5 5 out of 5
I'm sleeping so much better!, November 30, 2008
By JewelryLadyLori from Tampa Bay, FL
Value: 5 out of 5 5 out of 5
Quality: 5 out of 5 5 out of 5
Effectiveness: 5 out of 5 5 out of 5
Satisfaction: 5 out of 5 5 out of 5

"This product was suggested to me by a nurse who is working with me through perimenopause issues...including insomnia. Since I began using this product one month ago, my sleep has improved A LOT! I suggested this product to my sister who has suffered with insomnia for years, and she is seeing a marked improvement as well!!"

Age: 35-44
Gender: Female
Daily supplement usage: 6+ supplements daily
Referral source: Physician
Reason for usage: Specific health concern
Duration of use: 30-60 days
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