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Source Naturals Serene Science 5-HTP 100 mg - 120 Capsules

4.5 4.5 out of 5 stars 213 ratings

Sustainability features

This product has sustainability features recognized by trusted certifications.

Packaging efficiency

Reduced air and/or water in the product or packaging for more efficient transportation.

As certified by
Compact by Design (Amazon-developed Certification) Compact by Design (Amazon-developed Certification)

Compact by Design identifies products that, while they may not always look very different, have a more efficient design. By reducing water and/or air in the product or packaging, these become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions.

Learn more about this certification

Part of
Climate Pledge Friendly

To see product details, add this item to your cart. You can always remove it later.
120 Count (Pack of 1)

Purchase options and add-ons


About this item

  • Source Naturals Serene Science 5-HTP is derived from the seeds of the plant Griffonia simplicifolia
  • The suggested use is to take 1 capsule once or twice daily with meals
  • This formula contains 100 milligrams
  • Contains no yeast, dairy, egg, gluten, corn, soy or wheat
  • Proudly manufactured in Scotts Valley, California

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From the brand

Sustainability features

Sustainability features

This product has sustainability features recognized by trusted certifications.

Packaging efficiency

Reduced air and/or water in the product or packaging for more efficient transportation.

As certified by
Compact by Design (Amazon-developed Certification) Compact by Design (Amazon-developed Certification)

Compact by Design identifies products that, while they may not always look very different, have a more efficient design. By reducing water and/or air in the product or packaging, these become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions.

Learn more about this certification

Part of
Sustainability features
Climate Pledge Friendly

Product Description

source Naturals Serene Science Banner - women yoga

OUR STORY: Front Runners of the Wellness Revolution

It began in 1982 with CEO Ira Goldberg’s vision for revolutionizing the way we think and act about our health. The Western healthcare model was focused almost entirely on treating a disease rather than prevention. Supporting and nurturing our bodies as a system designed for wellness wasn’t widely known until recently. Though the advances are recent in our culture, Ira Goldberg's vision has been a reality for decades. We're proud to offer a wide array of health and household products. Your well-being is our highest priority. We invite you to join our wellness community today. Now more than ever, find great ways to add to your diet today. The smallest changes yield great results.

SN1694 Generic Bottle Shot

Serene Science 5-HTP 100mg - Balanced Mood Aid

  • May help balance serotonin levels which helps regulate sleep, moods and appetite.
  • 100 mg Capsules
  • Suggested Use: 1 to 2 capsules once or twice daily with meals, or as directed by your healthcare professional.

*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.

SN1694 SN1695 SN1696 SN0897 SN0898 SN0899
Source Naturals Serene Science 5-HTP 100 mg - 30 Capsules Source Naturals Serene Science 5-HTP 100mg, Balanced Mood - 60 Capsule Source Naturals Serene Science 5-HTP 100mg, Balanced Mood - 120 Capsule St. Johns Wort Extract 300 mg Supports a Positive Mental Outlook - 60 Tablets St. Johns Wort Extract 300 mg Supports a Positive Mental Outlook - 120 Tablets St. Johns Wort Extract 300 mg Supports a Positive Mental Outlook - 240 Tablets
Customer Reviews
4.3 out of 5 stars
20
4.0 out of 5 stars
21
4.5 out of 5 stars
213
3.6 out of 5 stars
17
4.0 out of 5 stars
106
4.0 out of 5 stars
106
Quantity 30 60 120 60 120 240
Form Capsules Capsules Capsules Tablet Tablet Tablet
Suggested Use 1 capsule once or twice daily with meals, or as directed by your healthcare professional. 1 capsule once or twice daily with meals, or as directed by your healthcare professional. 1 capsule once or twice daily with meals, or as directed by your healthcare professional. 1 tablet three times daily. For best results, use this product for at least 6 weeks. 1 tablet three times daily. For best results, use this product for at least 6 weeks. 1 tablet three times daily. For best results, use this product for at least 6 weeks.
Serving Size 2 Capsules 2 Capsules 2 Capsules 1 Tablet 1 Tablet 1 Tablet
Dose 100 mg 100 mg 100 mg 300 mg 300 mg 300 Mg
Made in the USA
relax

Sleep Regulation, Mood Balance and Regulate Appetite with 5-HTP

5-HTP works because it supports your body’s balanced production of two important sleep regulating hormones, serotonin and melatonin. Serotonin is a neurotransmitter that helps regulate sleep, moods and appetite. But you need adequate serotonin levels to maintain this balance. 5-HTP is the serotonin precursor that is formed when tryptophan is converted into serotonin in your body. In clinical research, 5-HTP increased the amount and availability of serotonin produced by the body. It is able to cross the blood brain–barrier to increase both serotonin levels and serotonin production in your brain so you can regain a healthy balance when you are sleeping, feeling emotions, or eating.*

*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.


Focus on sustainability

Compact by design from Climate pledge friendly. Certified by Amazon.

Small changes in product size & weight lead to lower carbon emissions.

We created Compact by Design to identify products that, while they may not always look very different, have a more efficient design. With the removal of excess air and water, products require less packaging and become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions.

Here are a few of the many ways products can qualify:

Less packaging

Less air in container

More efficient shape

Waterless technology

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1.3 x 1.3 x 1.6 inches; 1.6 ounces
  • Item model number ‏ : ‎ SNS178
  • Department ‏ : ‎ Natural Health
  • Date First Available ‏ : ‎ June 22, 2006
  • Manufacturer ‏ : ‎ Source Naturals
  • ASIN ‏ : ‎ B000GFHPBG
  • Customer Reviews:
    4.5 4.5 out of 5 stars 213 ratings

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Source Naturals Serene Science 5-HTP 100 mg - 120 Capsules
Source Naturals Serene Science 5-HTP 100 mg - 120 Capsules
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Price$32.49$23.99$6.98$22.17$35.00-48% $16.78
List:$31.99
Price Per Unit$0.27 / Count$0.40 / Count$0.23 / Count$0.37 / Count$0.39 / Count$0.14 / Count
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to swallow
4.4
4.8
4.3
Flavor
4.1
5.0
4.1
Sleep quality
3.9
3.8
3.8
Sold By
Health Chest
Triquetra Health
Health Chest
VitaminLife
Pattern.
Amazon.com
keyword type
5-htp-nutritional-supplements
5-htp-nutritional-supplements
5-htp-nutritional-supplements
5-htp-nutritional-supplements
5-htp-nutritional-supplements
5-htp-nutritional-supplements
form
Capsule
Capsule
Capsule
Capsule
Capsule
Capsule
flavor
Unflavored
Unflavored
Unflavored
Unflavored
Unflavored
size
120 Count (Pack of 1)
60 Count (Pack of 1)
30 Count (Pack of 1)
60 CAP
90 Count (Pack of 1)
120 Count (Pack of 1)
weight
0.1 pounds
0.4 pounds
0.05 pounds
0.1 pounds
0.05 pounds
0.25 pounds
age range
Adult
Adult
Adult
Adult
Adult
Adult
product benefit
Sleep and Mood Support
Supports
Heart Health Support
Sleep Support
Dietary Supplement,Mood Support,Nervous System Health
serving suggestion
Please see bottle label for more information
2 capsules
1 to 2 capsules once or twice daily with meals, or as directed by your healthcare professional.
One Capsule
Serving Size: 2 Capsules
Take 1 capsule daily, preferably on an empty stomach at bedtime.

Important information

Safety Information

In some people, nausea, headaches, nasal congestion, or constipation may occur. If these symptoms occur, lower the dose, or spread the dose throughout the day. Discontinue use if any of these symptoms persist for more than three days. If you are pregnant or breastfeeding, taking prescription medication such as antidepressant SSRI's, MAO inhibitors or sedatives, or if you have heart disease, consult your physician before using this product. Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Ingredients

5 HTP

Directions

Please see bottle label for more information

Legal Disclaimer

These statements have not yet been evaluated by the United States Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

Looking for specific info?

Customer reviews

4.5 out of 5 stars
4.5 out of 5
213 global ratings

Customers say

Customers like the quality, value, and performance of the 5HTP supplement. They mention that it helps them sleep well, calms them down, and improves their mood. They appreciate the value for money, saying that it gets the job done. Some are happy with side effects, while others dislike stomach pains.

AI-generated from the text of customer reviews

35 customers mention30 positive5 negative

Customers like the sleep aid. They mention that it makes them sleepy, they never have trouble sleeping through the night, and they awaken feeling rested. They also say it helps them relax and improves their mood. Customers also say the supplements can be enormously helpful for depression and sleep. They say it leaves them alert in the mornings and their evening nap is slowly distancing.

"...The 1, 2 punch is a killer to my insomnia. Sweet sleep, and the side benefit of a cheerful mood. Not bad for such a little capsule." Read more

"...with one evening and one morning dose, and have found that I am sleeping much better, as well as seem to have fewer mood swings and fluxuations in..." Read more

"...Other sleep aides leave me feeling unrested the next day. I feel rested and energized. My teenage son has noticed that I am calmer and less stressed...." Read more

"...These supplements can be enormously helpful for depression and sleep! getting good advice is worth it...." Read more

27 customers mention27 positive0 negative

Customers say the nutritional supplement helps with mood. They say it calms them down, makes them feel happy, and has fewer mood swings. They also say it's a great product to regulate PMS mood swing and cravings. Customers also say that it helps with stress and anxiety.

"I bought this for the sleep improving effects, but man did it improve my mood. I did not expect that at all...." Read more

"...found that I am sleeping much better, as well as seem to have fewer mood swings and fluxuations in appetite...." Read more

"...It has increase my positive mood.Lessened my anxiety.And kept me on track with healthy habits...." Read more

"...This alone speaks volumes. I feel good and less anxious. It gives me the same feeling that Effexor did but without the terrible side effects...." Read more

21 customers mention21 positive0 negative

Customers are satisfied with the quality of the nutritional supplement. They mention it's a fine vitamin and reliable way to continue.

"...Great value, great quality and it works.The 5-HTP is fantastic...." Read more

"...It takes affect in a week or two.Great product at an affordable price. Really, GNC has it for $19 and it only comes with 30 capsules." Read more

"...Oh, it was wonderful. I haven't slept regular hours in ages. I hardly ever write reviews, but if you have trouble sleeping, this is a must-try...." Read more

"...It is a high quality product at a reasonable price. I will be ordering again." Read more

15 customers mention11 positive4 negative

Customers like the value of the nutritional supplement. They say it works well and saves them a bundle.

"...I've tried many other supplements and this is my favorite brand. Great value, great quality and it works.The 5-HTP is fantastic...." Read more

"...It takes affect in a week or two.Great product at an affordable price. Really, GNC has it for $19 and it only comes with 30 capsules." Read more

"I love 5-htp. It has changed my life. However, this is a poor product. I much prefer the "purple lid" product over this one...." Read more

"...I thought this Source One was a good value for the amount I take." Read more

14 customers mention14 positive0 negative

Customers are satisfied with the performance of the nutritional supplement. They mention that it works well, gets the job done, and has good potency. Some say that it enhances their exercise results.

"...The 5HTP is working for me." Read more

"This comes in a convenient dosage, and seems to have good potency...." Read more

"...Helps sleep!together they work well, raise serotonin and help sleep...." Read more

"...Combine this with a light or vigorous exercise routine and it enhances the results ;)..." Read more

8 customers mention8 positive0 negative

Customers are satisfied with the side effects of the nutritional supplement. They mention that they have not experienced any side effects, and the effects are not immediate.

"...A steady routine should be built. The effects aren't immediate. It takes affect in a week or two.Great product at an affordable price...." Read more

"...So far I have not experienced any side effects and just set up Auto Ship so that I am never without it...." Read more

"...I have not suffered any side effects...." Read more

"...I recommend you wean yourself. This is healthier and no side effects.O, and I sleep much better...." Read more

7 customers mention7 positive0 negative

Customers like the nutritional supplement for its ability to curb their cravings. They say it helps keep their appetite in check, and curbs their craving for sugar. Some customers also mention that it helps with sleep, focus, and hunger fluctuations.

"...I have not experienced a decreased craving, but I know it can take several weeks before you get the full benefits...." Read more

"...it for about 3-4 weeks and I immediatley noticed that I dont feel hungry in between meals anymore and I dont crave junk food or candy like I use to...." Read more

"...I find that it also helps with carb cravings. I thought this Source One was a good value for the amount I take." Read more

"...(3pm) and it calms me down, helps me sleep better, and helps keep my appetite in check. My urge to snack at night has decreased...." Read more

11 customers mention3 positive8 negative

Customers are not happy with the stomach pains caused by the nutritional supplement. They say that it makes them nauseous, queasy, and feel pain all over their body. Some customers also mention that the product makes them very sick.

"Well so far the only thing I have noticed on these pills is stomach aches, sleepiness and bloating...." Read more

"Product makes me slighly nauseous and VERY tired.. I guess not everyone will have the same affects but I read somewhere that Dr.Oz says this is a..." Read more

"...I love that it does not make me feel "groggy", but I fall asleep faster and sleep better once I go to bed. I also do not wake up in a fog...." Read more

"It didn't sit well with my stomach. but that is the only effect that happened. No other adverse effects." Read more

Beware for the expiration date.  Seller sells almost expired Products.
1 Star
Beware for the expiration date. Seller sells almost expired Products.
Bought 2 bottles of this product with 120 capsules each. Today, I just realize that both bottles will expire on March 2021. Technically, I can only consume till end of february. 1st bottle should be okay but i waste my money on second bottle. Very disappointed with the seller!!!!
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Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.