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Diabetes SupportDigestive HealthHeart HealthShop all Health & WellnessSmoking CessationAmino AcidsAntioxidant SupplementsAzoBest NaturalsBody CleanseColon CleanseEnergy VitaminsEstrovenFat BlockersGenius BrandHeadachesHerbal SupplementsImmunity Support SupplementsInositolIrwin NaturalsKidney CleanseKids MelatoninLemmeLetter VitaminsLife ExtensionMagnesiumMelatoninMelatonin gummiesMenopause supplementsNAC SupplementsNatural Appetite SuppressantsNatural Weight ManagementNiacinOmegaXLOnnitOver-the-Counter MedicinesProteinPure EncapsulationsShop by brandSleep AidsSpecialty Pain ReliefStress Support SupplementsSuperfoodsSupplementsTestosterone BoosterThorneVitamins and SupplementsWeight LossWeight Loss PillsWomen's Wellness & Personal Care
Serotonin Supplements(219)
Uses item details. Price when purchased online
NATURAL STACKS Serotonin Brain Food w/ L-Tryptophan & Rhodiola Rosea - Mood Support Supplement - Promotes Positive Mood, Calmness, Stress Relief - Happy Mood & Brain Support Supplement - 60 Capsules $38.95 64.9 ¢/count
Sponsored
$3895
current price $38.9564.9 ¢/count
NATURAL STACKS Serotonin Brain Food w/ L-Tryptophan & Rhodiola Rosea - Mood Support Supplement - Promotes Positive Mood, Calmness, Stress Relief - Happy Mood & Brain Support Supplement - 60 Capsules
2714.5 out of 5 Stars. 271 reviews
MoxyVites 5-HTP 100mg + P-5-P B6 Mood, Sleep & Stress Support, Gluten-Free, 120 Vegan Capsules $19.97 Was $24.96
Sponsored
$1997
current price $19.97, Was $24.96$24.96
MoxyVites 5-HTP 100mg + P-5-P B6 Mood, Sleep & Stress Support, Gluten-Free, 120 Vegan Capsules
2894.7 out of 5 Stars. 289 reviews
Pure Encapsulations 5-HTP 50 mg | 5-Hydroxytryptophan Supplement for Brain, Sleep, Eating Behavior, and Serotonin Support* | 60 Capsules $42.50
Sponsored
$4250
current price $42.50Pure Encapsulations 5-HTP 50 mg | 5-Hydroxytryptophan Supplement for Brain, Sleep, Eating Behavior, and Serotonin Support* | 60 Capsules
25 out of 5 Stars. 2 reviews
Pure Encapsulations 5-HTP 50 mg | 5-Hydroxytryptophan Supplement for Brain, Eating Behavior, and Serotonin Support* | 180 Capsules $105.00
Sponsored
$10500
current price $105.00Pure Encapsulations 5-HTP 50 mg | 5-Hydroxytryptophan Supplement for Brain, Eating Behavior, and Serotonin Support* | 180 Capsules
25 out of 5 Stars. 2 reviews
NATURAL STACKS Serotonin Brain Food w/ L-Tryptophan & Rhodiola Rosea - Mood Support Supplement - Promotes Positive Mood, Calmness, Stress Relief - Happy Mood & Brain Support Supplement - 60 Capsules $38.95 64.9 ¢/count
$3895
current price $38.9564.9 ¢/count
NATURAL STACKS Serotonin Brain Food w/ L-Tryptophan & Rhodiola Rosea - Mood Support Supplement - Promotes Positive Mood, Calmness, Stress Relief - Happy Mood & Brain Support Supplement - 60 Capsules
2714.5 out of 5 Stars. 271 reviews
Amazing Formulas 5-HTP (Hydroxytryptophan) 100 Mg Per Serving 120 Veggie Capsules Supplement | Non-GMO | Gluten Free $9.99 $1.67/oz
$999
current price $9.99$1.67/oz
Amazing Formulas 5-HTP (Hydroxytryptophan) 100 Mg Per Serving 120 Veggie Capsules Supplement | Non-GMO | Gluten Free
834.7 out of 5 Stars. 83 reviews
NOW Supplements, 5-HTP (5-hydroxytryptophan) 100 mg, Neurotransmitter Support*, 120 Veg Capsules From $18.99
2 options
Available in additional 2 optionsFrom$1899
NOW Supplements, 5-HTP (5-hydroxytryptophan) 100 mg, Neurotransmitter Support*, 120 Veg Capsules
704.5 out of 5 Stars. 70 reviews
Natrol 5-HTP 200 mg Time Release, Helps Support a Balanced Mood, 30 Tablets Was $22.79
Natrol 5-HTP 200 mg Time Release, Helps Support a Balanced Mood, 30 Tablets
1164.7 out of 5 Stars. 116 reviews
Nutricost 5-HTP, 200 mg, 120 Capsules $16.94 $4.24/oz
$1694
current price $16.94$4.24/oz
Nutricost 5-HTP, 200 mg, 120 Capsules
864.7 out of 5 Stars. 86 reviews
Irwin Naturals Double Potency 5-HTP Extra - Relaxation & Serotonin Support - 60 Liquid Soft-Gels $19.99
$1999
current price $19.99Irwin Naturals Double Potency 5-HTP Extra - Relaxation & Serotonin Support - 60 Liquid Soft-Gels
165 out of 5 Stars. 16 reviews
Pure Encapsulations 5-HTP 100 mg - Brain Health, Sleep Regulation & Appetite Support* - 5-Hydroxytryptophan - Gluten Free & Non-GMO - 60 Capsules $61.00
Sponsored
$6100
current price $61.00Pure Encapsulations 5-HTP 100 mg - Brain Health, Sleep Regulation & Appetite Support* - 5-Hydroxytryptophan - Gluten Free & Non-GMO - 60 Capsules
55 out of 5 Stars. 5 reviews
Pure Encapsulations Sereniten Plus | Support for Occasional Stress and Restful Sleep* | 45 Capsules $74.00
Sponsored
$7400
current price $74.00Pure Encapsulations Sereniten Plus | Support for Occasional Stress and Restful Sleep* | 45 Capsules
Swanson Griffonia 5-HTP Supplement, 100mg, 60 Capsules $10.99
$1099
current price $10.99Swanson Griffonia 5-HTP Supplement, 100mg, 60 Capsules
2454.5 out of 5 Stars. 245 reviews
BeLive 5-HTP Gummies - 60 Ct I 5HTP Stress Relief Gummies for Better Sleep, Heightened Focus, Mood Booster & Stress Relief I Serotonin Booster for Adults, Vegan 5 HTP Supplement - Mix Berries $18.11
$1811
current price $18.11BeLive 5-HTP Gummies - 60 Ct I 5HTP Stress Relief Gummies for Better Sleep, Heightened Focus, Mood Booster & Stress Relief I Serotonin Booster for Adults, Vegan 5 HTP Supplement - Mix Berries
124.9 out of 5 Stars. 12 reviews
BrainMD Serotonin Mood Support - 120 Vegan Capsules - Supports Serotonin Balance $52.50
$5250
current price $52.50BrainMD Serotonin Mood Support - 120 Vegan Capsules - Supports Serotonin Balance
Best Naturals L-Tryptophan 1000 mg 60 Tablets $9.99
$999
current price $9.99Best Naturals L-Tryptophan 1000 mg 60 Tablets
984.5 out of 5 Stars. 98 reviews
Reduced price Earth's Splendor 5-HTP Dietary Supplement for Men & Women, Supports a Balanced Mood & Aids in Stress Support, Provides Sense of Calm No Artificial Preservatives Color or Flavor Non-GMO 100 MG $8.32 Was $13.99
Now$832
current price Now $8.32, Was $13.99$13.99
Earth's Splendor 5-HTP Dietary Supplement for Men & Women, Supports a Balanced Mood & Aids in Stress Support, Provides Sense of Calm No Artificial Preservatives Color or Flavor Non-GMO 100 MG
5-HTP 200mg, 120 Vegetarian Capsules (5-Hydroxytryptophan) , Neurotransmitter & Mood Support $14.39
$1439
current price $14.395-HTP 200mg, 120 Vegetarian Capsules (5-Hydroxytryptophan) , Neurotransmitter & Mood Support
134.4 out of 5 Stars. 13 reviews
NOW Supplements, 5-HTP (5-hydroxytryptophan) 100 mg, Neurotransmitter Support*, 60 Veg Capsules From $12.79
2 options
Available in additional 2 optionsFrom$1279
NOW Supplements, 5-HTP (5-hydroxytryptophan) 100 mg, Neurotransmitter Support*, 60 Veg Capsules
284.6 out of 5 Stars. 28 reviews
MoxyVites 5-HTP 100mg + P-5-P B6 Mood, Sleep & Stress Support, Gluten-Free, 120 Vegan Capsules From $19.97
2 options
Available in additional 2 optionsFrom$1997
MoxyVites 5-HTP 100mg + P-5-P B6 Mood, Sleep & Stress Support, Gluten-Free, 120 Vegan Capsules
2894.7 out of 5 Stars. 289 reviews
BulkSupplements 5-HTP 400mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 2 Capsules per Serving, 360 Count $26.97
Sponsored
$2697
current price $26.97BulkSupplements 5-HTP 400mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 2 Capsules per Serving, 360 Count
164.5 out of 5 Stars. 16 reviews
THORNE - 5-HTP (formerly 5-Hydroxytryptophan) - Contains Vitamin B6 - Serotonin Support for Sleep and Stress Management* - 90 Capsules $39.00
Sponsored
$3900
current price $39.00THORNE - 5-HTP (formerly 5-Hydroxytryptophan) - Contains Vitamin B6 - Serotonin Support for Sleep and Stress Management* - 90 Capsules
434.7 out of 5 Stars. 43 reviews
5-Htp L-5-Hydroxytryptophan Capsules 100 Mg By Natures Bounty - 60 Capsules From $20.90
2 options
Available in additional 2 optionsFrom$2090
5-Htp L-5-Hydroxytryptophan Capsules 100 Mg By Natures Bounty - 60 Capsules
304 out of 5 Stars. 30 reviews
THORNE - 5-HTP (formerly 5-Hydroxytryptophan) - Contains Vitamin B6 - Serotonin Support for Sleep and Stress Management* - 90 Capsules $39.00
$3900
current price $39.00THORNE - 5-HTP (formerly 5-Hydroxytryptophan) - Contains Vitamin B6 - Serotonin Support for Sleep and Stress Management* - 90 Capsules
434.7 out of 5 Stars. 43 reviews
Vitamatic Sugar Free 5-HTP 200mg Gummies with B6 per Serving - 60 Pectin Based Gummes From $14.99
3 options
Available in additional 3 optionsFrom$1499
Vitamatic Sugar Free 5-HTP 200mg Gummies with B6 per Serving - 60 Pectin Based Gummes
214.2 out of 5 Stars. 21 reviews
Amazing Formulas 5-HTP (Hydroxytryptophan) 200 Mg Per Serving 120 Veggie Capsules Supplement | Made from Griffonia Simplicifolia Seed Extract | Non-GMO | Gluten Free | Ideal for Vegetarians $15.99 $2.00/oz
$1599
current price $15.99$2.00/oz
Amazing Formulas 5-HTP (Hydroxytryptophan) 200 Mg Per Serving 120 Veggie Capsules Supplement | Made from Griffonia Simplicifolia Seed Extract | Non-GMO | Gluten Free | Ideal for Vegetarians
204 out of 5 Stars. 20 reviews
Quality of Life PureBalance Serotonin, 60 Capsules $42.76
$4276
current price $42.76Quality of Life PureBalance Serotonin, 60 Capsules
34.7 out of 5 Stars. 3 reviews
NutriCology Seratonin - Serotonin Support Supplement - Mood & Sleep Support Capsules - Neurotransmitter Balance Formula - Vegetarian - 30 Servings - 90 Capsules $62.39
$6239
current price $62.39NutriCology Seratonin - Serotonin Support Supplement - Mood & Sleep Support Capsules - Neurotransmitter Balance Formula - Vegetarian - 30 Servings - 90 Capsules
64.7 out of 5 Stars. 6 reviews
NOW Supplements, 5-HTP (5-hydroxytryptophan) 200 mg, Double Strength, Neurotransmitter Support*, 120 Veg Capsules From $29.99
2 options
Available in additional 2 optionsFrom$2999
NOW Supplements, 5-HTP (5-hydroxytryptophan) 200 mg, Double Strength, Neurotransmitter Support*, 120 Veg Capsules
304.8 out of 5 Stars. 30 reviews
BulkSupplements 5-HTP 50mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 1 Capsule per Serving, 365 Count $20.97
$2097
current price $20.97BulkSupplements 5-HTP 50mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 1 Capsule per Serving, 365 Count
25 out of 5 Stars. 2 reviews
Fineland Vitamins 5-HTP Stress and Anxiety Support Vegan Capsules 60 Count $26.99
Sponsored
$2699
current price $26.99Fineland Vitamins 5-HTP Stress and Anxiety Support Vegan Capsules 60 Count
34.7 out of 5 Stars. 3 reviews
BulkSupplements 5-HTP 200mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 1 Capsule per Serving, 365 Count $26.97
Sponsored
$2697
current price $26.97BulkSupplements 5-HTP 200mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 1 Capsule per Serving, 365 Count
344.9 out of 5 Stars. 34 reviews
Flash Deal GABA Supplements 750mg with L-Theanine, 5-HTP, Ashwagandha, Lemon Balm, Ginkgo Biloba, Omega-3, GABA Capsules for Sleep, Focus, Mood Support, Cortisol Balance - 60 Day Supply, Melatonin-Free $15.39
$1539
current price $15.39GABA Supplements 750mg with L-Theanine, 5-HTP, Ashwagandha, Lemon Balm, Ginkgo Biloba, Omega-3, GABA Capsules for Sleep, Focus, Mood Support, Cortisol Balance - 60 Day Supply, Melatonin-Free
364.4 out of 5 Stars. 36 reviews
ARG Seratonin - Neurotransmitter Support - Vitamin C, Niacin, Folate & More - Supports Serotonin Pathways, a Positive Outlook & Restfuness - 30 Servings - 90 Capsules $62.39
$6239
current price $62.39ARG Seratonin - Neurotransmitter Support - Vitamin C, Niacin, Folate & More - Supports Serotonin Pathways, a Positive Outlook & Restfuness - 30 Servings - 90 Capsules
Reduced price Best Naturals 5-HTP 200 mg 120 Vegetarian Capsules $13.59 Was $16.99
Now$1359
current price Now $13.59, Was $16.99$16.99
Best Naturals 5-HTP 200 mg 120 Vegetarian Capsules
444.5 out of 5 Stars. 44 reviews
Reduced price 5-HTP 200mg with L-Theanine, Melatonin, Vitamin B6, B12 & Magnesium Halal, Non-GMO, Natural Serotonin Support 60 Capsules $14.24 Was $17.24
Now$1424
current price Now $14.24, Was $17.24$17.24
5-HTP 200mg with L-Theanine, Melatonin, Vitamin B6, B12 & Magnesium Halal, Non-GMO, Natural Serotonin Support 60 Capsules
5-HTP Supplement - 200mg per Serving - Extra Strength 5HTP from Griffonia Simplicifolia - Supports Restful Sleep, Natural Calm & Brain Health - 5 Hydroxytryptophan - Bottled in USA - 120 Capsules $9.82
$982
current price $9.825-HTP Supplement - 200mg per Serving - Extra Strength 5HTP from Griffonia Simplicifolia - Supports Restful Sleep, Natural Calm & Brain Health - 5 Hydroxytryptophan - Bottled in USA - 120 Capsules
Swanson 5-Htp 50 mg 60 Capsules $7.73 Was $11.09
Now$773
current price Now $7.73, Was $11.09$11.09
Swanson 5-Htp 50 mg 60 Capsules
1054.4 out of 5 Stars. 105 reviews
Zahler MasterPeace a Fast-acting relaxation support supplement Natural serotonin metabolism support, 60 capsules. $32.47
$3247
current price $32.47Zahler MasterPeace a Fast-acting relaxation support supplement Natural serotonin metabolism support, 60 capsules.
BY CARIOLA 5-HTP Natural Mood & Sleep Support Supplement Capsules - Mood Support - Sleep Support - Serotonin Booster - Calming Effect - Natural Formula Griffonia Simplicifolia - 60 Caps $24.95
$2495
current price $24.95BY CARIOLA 5-HTP Natural Mood & Sleep Support Supplement Capsules - Mood Support - Sleep Support - Serotonin Booster - Calming Effect - Natural Formula Griffonia Simplicifolia - 60 Caps
Gflow Vitamins Apigenin + L-Theanine - Magnesium $19.97
$1997
current price $19.97Gflow Vitamins Apigenin + L-Theanine - Magnesium
54 out of 5 Stars. 5 reviews
BulkSupplements 5-HTP 200mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 1 Capsule per Serving, 365 Count $26.97
$2697
current price $26.97BulkSupplements 5-HTP 200mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 1 Capsule per Serving, 365 Count
344.9 out of 5 Stars. 34 reviews
Best Naturals 5-HTP 100 mg Supplement Capsules, 120 Count $13.99
$1399
current price $13.99Best Naturals 5-HTP 100 mg Supplement Capsules, 120 Count
464.9 out of 5 Stars. 46 reviews
Seeking Health Serotonin Nutrients, Supports Healthy Sleep, 5-HTP Supplement with Vitamin B6 and Saffron Extract, Vegan and Vegetarian (60 capsules) $47.00
$4700
current price $47.00Seeking Health Serotonin Nutrients, Supports Healthy Sleep, 5-HTP Supplement with Vitamin B6 and Saffron Extract, Vegan and Vegetarian (60 capsules)
714.5 out of 5 Stars. 71 reviews
ZENTA - The Natural Relief Supplement to Help Calm Body and Mind | Positive Mood Enhancer - Increase Serotonin Levels with GAB, 5-HTP, Ashwagandha, Chamomile, DMAE | 60 ct $19.95
$1995
current price $19.95ZENTA - The Natural Relief Supplement to Help Calm Body and Mind | Positive Mood Enhancer - Increase Serotonin Levels with GAB, 5-HTP, Ashwagandha, Chamomile, DMAE | 60 ct
15 out of 5 Stars. 1 reviews
Source Naturals, L-Tryptophan with Coenzyme B-6 for Positive Mood Enhancement and Sleep 500mg 30 Tablets $8.88
$888
current price $8.88Source Naturals, L-Tryptophan with Coenzyme B-6 for Positive Mood Enhancement and Sleep 500mg 30 Tablets
Superior Source Calming Formula, L-Theanine, Melatonin, Under The Tongue Quick Dissolve MicroLingual Tablets, 60 Ct, 5-HTP for Enhanced Serotonin Conversion, Sleep Support, Non-GMO $18.99
$1899
current price $18.99Superior Source Calming Formula, L-Theanine, Melatonin, Under The Tongue Quick Dissolve MicroLingual Tablets, 60 Ct, 5-HTP for Enhanced Serotonin Conversion, Sleep Support, Non-GMO
32.7 out of 5 Stars. 3 reviews
Fineland Vitamins 5-HTP Stress and Anxiety Support Vegan Capsules 60 Count $26.99
$2699
current price $26.99Fineland Vitamins 5-HTP Stress and Anxiety Support Vegan Capsules 60 Count
34.7 out of 5 Stars. 3 reviews
Nutricost 5-HTP 200mg Supplement, 60 Capsules (5-Hydroxytryptophan) $12.95
$1295
current price $12.95Nutricost 5-HTP 200mg Supplement, 60 Capsules (5-Hydroxytryptophan)
1314 out of 5 Stars. 131 reviews
BulkSupplements 5-HTP 400mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 2 Capsules per Serving, 120 Count $19.97
$1997
current price $19.97BulkSupplements 5-HTP 400mg Capsules - 5-Hydroxytryptophan, Dietary Supplement - 2 Capsules per Serving, 120 Count
164.5 out of 5 Stars. 16 reviews
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Pre-Owned 5-HTP: The Natural Way to Boost Serotonin and Overcome Depression, Obesity, and Insomnia (Hardcover) 0553107844 9780553107845$5.02current price $5.02THORNE - 5-HTP (formerly 5-Hydroxytryptophan) - Contains Vitamin B6 - Serotonin Support for Sleep and Stress Management* - 90 Capsules
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SuperSmart - L-Tryptophan Supplement 1000 mg per Day - Mood Support - Serotonin & Melatonin Precursor | Non-GMO & Gluten Free - 120 Tablets$36.00current price $36.005 HTP Supplement 400mg | 120 Capsules | 5 Hydroxytryptophan | by Horbaach
5 HTP Supplement 400mg | 120 Capsules | 5 Hydroxytryptophan | by Horbaach$17.99current price $17.99Maximize Within GABA (Gamma-Aminobutyric Acid) 750mg 60 Count
Maximize Within GABA (Gamma-Aminobutyric Acid) 750mg 60 Count$13.49current price $13.49BulkSupplements L-Theanine Capsules - Theanine Supplement, Amino Acid Supplement - 1 Capsule per Serving (200mg), 365 Count
BulkSupplements L-Theanine Capsules - Theanine Supplement, Amino Acid Supplement - 1 Capsule per Serving (200mg), 365 Count$19.97current price $19.97(2 pack) Best Naturals 5-HTP 200 mg 120 Vegetarian Capsules
(2 pack) Best Naturals 5-HTP 200 mg 120 Vegetarian Capsules$30.58current price $30.58TransformHQ Caffeine & L-Theanine (100mg Each) 180 Caps - Gluten Free, Non-GMO
TransformHQ Caffeine & L-Theanine (100mg Each) 180 Caps - Gluten Free, Non-GMO$14.95current price $14.955 HTP Supplement 200mg | 180 Capsules | 5 Hydroxytryptophan | by Horbaach
5 HTP Supplement 200mg | 180 Capsules | 5 Hydroxytryptophan | by Horbaach$15.28current price $15.28BulkSupplements 5-HTP Powder - 5-Hydroxytryptophan, Dietary Supplement - 25g (0.88 oz)
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Life Extension L-Theanine, amino acid theanine, calm, relaxation, mood, gluten-free, non-GMO, vegetarian, 100 mg, 60 capsules$17.95current price $17.95BulkSupplements GABA Powder - 750mg per Serving - 5 Kilograms (11 lbs) - 6667 Servings
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Best Naturals 5-HTP 50 mg Gluten-Free Amino Acid Supplements, 120 Count$8.99current price $8.99