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Brand
Lidtke
Best Naturals
Source Naturals
Now
Himedia
Dr. Giorgini
Bestvite
See 2 more
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Dosage Form
Tablet
Capsule
Flavor
Unflavored
Number of Servings
120 servings
Serving Size
1 capsule
2 capsules
0.5 g
Allergen Information
Gluten-Free
Soy-Free
Wheat-Free
Price
Up to $20
$20 - $40
$40 - $60
Over $60
$
to
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Show filters
Alteril All Natural Sleep Aid Relaxing & Faster Asleep W/ L-Tryptophan, 60Ct
4.4
1K+
W
Walmart
$
20
.
99
$
27
.
32
Alteril All Natural Sleep Aid Relaxing & Faster Asleep W/ L-Tryptophan, 60Ct
4.4
1K+
W
Walmart
$
20
.
99
$
27
.
32
Knot response pills are highly recommended for their effectiveness in helping users fall asleep and stay asleep without waking up groggy. The all-natural formula is praised for its positive effects. However, some users experienced stomach aches, discomfort, and allergic reactions.
Indyancart Biotrex L-Tryptophan 500Mg Capsules, 60 Caps
S
Shop
$
20
.
04
Indyancart Biotrex L-Tryptophan 500Mg Capsules, 60 Caps
S
Shop
$
20
.
04
Lidtke, L Tryptophan, 60 Capsules
5
14
H
Herbs Direct
$
27
.
95
Lidtke, L Tryptophan, 60 Capsules
5
14
H
Herbs Direct
$
27
.
95
Free shipping
This product is highly recommended for its effectiveness in reducing anxiety and improving sleep quality. It is made from clean ingredients and contains no fillers. Users report noticeable improvements after taking just one capsule before bedtime.
Bestvite's L-Tryptophan 500Mg (120 Vegetarian Capsules) 240 Vegetarian Capsules
4.6
140
B
Bestvite, Inc
$
32
.
99
Bestvite's L-Tryptophan 500Mg (120 Vegetarian Capsules) 240 Vegetarian Capsules
4.6
140
B
Bestvite, Inc
$
32
.
99
This supplement is praised for its effectiveness in improving sleep, mood, and quality. It is a natural antidepressant that works better than prescription medications. However, some users experienced side effects or questioned its effectiveness.
Brieofood L-Tryptophan 1000Mg Per Serving - 240 Capsules - Supports Poisitive Mood & Relaxation
3.8
41
W
Walmart
$
18
.
99
Brieofood L-Tryptophan 1000Mg Per Serving - 240 Capsules - Supports Poisitive Mood & Relaxation
3.8
41
W
Walmart
$
18
.
99
Brieofood L-Tryptophan is praised for its easy-to-swallow capsules, good value, and quality. It is made in the USA with non-GMO ingredients and is third-party testing. Users report improved sleep and reduced allergies.
NOW Foods, L-Tryptophan, 1,000 Mg, 60 Tablets, NOW-00169
4.4
1K+
I
iHerb
$
19
.
94
NOW Foods, L-Tryptophan, 1,000 Mg, 60 Tablets, NOW-00169
4.4
1K+
I
iHerb
$
19
.
94
This product is praised for its effectiveness in promoting sleep patterns, mood stabilization, and relaxation. Users report noticeable improvements in their sleep and overall well-being. However, some customers experienced no effect or were disappointed with the formula.
L-Tryptophan Complete, By Lidtke, 180 Veg Capsules
4.2
367
N
Natural Healthy Concepts
$
55
.
99
L-Tryptophan Complete, By Lidtke, 180 Veg Capsules
4.2
367
N
Natural Healthy Concepts
$
55
.
99
This product is highly recommended for its effectiveness in reducing anxiety and improving sleep quality. It is made from clean ingredients and contains no fillers. Users report noticeable improvements after taking just one capsule before bedtime.
Amazing Formulas L-Tryptophan 1000Mg Per Serving 60 Tablets Supplement | Non-GMO | Gluten Free
4.4
1K+
W
Walmart
$
17
.
07
Amazing Formulas L-Tryptophan 1000Mg Per Serving 60 Tablets Supplement | Non-GMO | Gluten Free
4.4
1K+
W
Walmart
$
17
.
07
This product effectively keeps users asleep and provides a full night of relaxation without lagging or fading. It is a safe and trusted substitute for melatonin, helping users sleep better and more comfortably.
Nutricost L-Tryptophan Capsules
4.5
1K+
N
Nutricost
$
17
.
97
Nutricost L-Tryptophan Capsules
4.5
1K+
N
Nutricost
$
17
.
97
This product is praised for its effectiveness in helping users fall asleep, reduce anxiety, and maintain a fresh nightly sleep. It is considered a good value and a natural alternative to medications. However, some users experienced issues with the product's packaging and potential stomach discomfort.
Amazing Formulas L-Tryptophan 500 Mg Per Serving 120 Capsules Supplement | Non-GMO | Gluten Free
4.4
1K+
W
Walmart
$
14
.
95
Amazing Formulas L-Tryptophan 500 Mg Per Serving 120 Capsules Supplement | Non-GMO | Gluten Free
4.4
1K+
W
Walmart
$
14
.
95
This product effectively keeps users asleep and provides a full night of relaxation without lagging or fading. It is a safe and trusted substitute for melatonin, helping users sleep better and more comfortably.
Pure Encapsulations, L Tryptophan, 180 Caps
4.5
135
H
Herbs Direct
$
124
.
50
Pure Encapsulations, L Tryptophan, 180 Caps
4.5
135
H
Herbs Direct
$
124
.
50
Pure En totodat receives mixed reviews, with some users experiencing positive results in sleep and appetite, while others find them difficult to swallow and even experience negative reactions. The product may be potentially toxic for some users.
Brieofood L-Tryptophan 2000Mg Per Serving - 120 Tablets - Supports Positive Mood & Relaxation
4.4
66
W
Walmart
$
14
.
99
Brieofood L-Tryptophan 2000Mg Per Serving - 120 Tablets - Supports Positive Mood & Relaxation
4.4
66
W
Walmart
$
14
.
99
These L-Tryptophan supplements are praised for their effectiveness in improving sleep, mood, and reducing drowsiness. They are easy to swallow and made in the USA. However, some users did not notice significant changes in their sleep.
Protocol For Life Balance L-Tryptophan 500 Mg - 120 Veg Caps
4
2
W
Walmart
$
42
Protocol For Life Balance L-Tryptophan 500 Mg - 120 Veg Caps
4
2
W
Walmart
$
42
Free shipping
L-Tryptophan Supplement, 1500Mg, 240 Capsules, Nighttime Formula, Non-GMO
3.7
3
W
Walmart
$
17
.
95
L-Tryptophan Supplement, 1500Mg, 240 Capsules, Nighttime Formula, Non-GMO
3.7
3
W
Walmart
$
17
.
95
Source Naturals L-Tryptophan 500 Mg Capsule - 60.0 Ct
4.5
1K+
I
Instacart
$
18
Source Naturals L-Tryptophan 500 Mg Capsule - 60.0 Ct
4.5
1K+
I
Instacart
$
18
This product is highly recommended for its effectiveness in helping users sleep better, relaxing at night, and waking up refreshed. It is easy to swallow and works well for many users. However, one user experienced grogginess after using it.
NOW Foods, L Tryptophan, Double Strength 1000 Mg, 60 Tablets
4.4
1K+
H
Herbs Direct
$
37
.
99
NOW Foods, L Tryptophan, Double Strength 1000 Mg, 60 Tablets
4.4
1K+
H
Herbs Direct
$
37
.
99
This product is praised for its effectiveness in promoting sleep patterns, mood stabilization, and relaxation. Users report noticeable improvements in their sleep and overall well-being. However, some customers experienced no effect or were disappointed with the formula.
L-Tryptophan 500 Mg, 60 Capsules, By Zahler
5
45
P
Professional Supplement Center
$
19
.
99
L-Tryptophan 500 Mg, 60 Capsules, By Zahler
5
45
P
Professional Supplement Center
$
19
.
99
These chewable pills are praised for their effectiveness in boosting the immune system, reducing energy levels, and providing sleep support. Customers appreciate the convenience of taking a supplement and the high-quality ingredients.
L-Tryptophan 500 Mg, 120 Tablets, By Source Naturals
4.5
1K+
P
Professional Supplement Center
$
24
.
99
L-Tryptophan 500 Mg, 120 Tablets, By Source Naturals
4.5
1K+
P
Professional Supplement Center
$
24
.
99
This product is highly recommended for its effectiveness in helping users sleep better, relaxing at night, and waking up refreshed. It is easy to swallow and works well for many users. However, one user experienced grogginess after using it.
L-Tryptophan, 90 Veg Capsules, By SFI Health
N
Natural Healthy Concepts
$
43
.
99
L-Tryptophan, 90 Veg Capsules, By SFI Health
N
Natural Healthy Concepts
$
43
.
99
L-Tryptophan 500 Mg 60 Capsules
2.7
50
A
Acupuncture Atlanta
$
42
.
45
L-Tryptophan 500 Mg 60 Capsules
2.7
50
A
Acupuncture Atlanta
$
42
.
45
Swanson L-Tryptophan 500 Mg 60 Capsules
4.5
737
W
Walmart
$
13
.
69
Swanson L-Tryptophan 500 Mg 60 Capsules
4.5
737
W
Walmart
$
13
.
69
This product is recommended for its effectiveness in helping users fall asleep and stay asleep. However, some users report that it doesn't work for them or that it does not improve sleep quality. Overall, it is a popular and affordable sleep aid option.
Source Naturals L-Tryptophan Tablets, 60 Ct
4.5
1K+
W
Walmart
$
13
.
99
Source Naturals L-Tryptophan Tablets, 60 Ct
4.5
1K+
W
Walmart
$
13
.
99
This product is highly recommended for its effectiveness in helping users sleep better, relaxing at night, and waking up refreshed. It is easy to swallow and works well for many users. However, one user experienced grogginess after using it.
L-Tryptophan 500 Mg, 120 Capsules, By Montiff
2.8
5
N
Natural Healthy Concepts
$
58
.
99
L-Tryptophan 500 Mg, 120 Capsules, By Montiff
2.8
5
N
Natural Healthy Concepts
$
58
.
99
Best Naturals L-Tryptophan 500 Mg 120 Capsules
4.5
259
W
Walmart
$
12
.
99
Best Naturals L-Tryptophan 500 Mg 120 Capsules
4.5
259
W
Walmart
$
12
.
99
These L-Tryptophan tablets are praised for helping users sleep better, stay asleep, and have positive mood. They are large and easy to swallow, with some users finding them difficult to swallow. However, some users did not notice significant changes in their sleep or mood.
Bulksupplements L-Tryptophan Capsules, 500Mg Per Serving (240 Capsules - 240 Servings)
4.5
54
W
Walmart
$
18
.
97
Bulksupplements L-Tryptophan Capsules, 500Mg Per Serving (240 Capsules - 240 Servings)
4.5
54
W
Walmart
$
18
.
97
This product is highly recommended for its effectiveness in improving sleep and mood, with no side effects. It is a great value for the price and is known to be of high quality. Users appreciate the lack of taste and the fact that it is 3rd-party tested.
L-Tryptophan 1500 Mg (Per Serving) | 90 Capsules For Men And Women | By Piping Rock
4.4
181
W
Walmart
$
11
.
99
L-Tryptophan 1500 Mg (Per Serving) | 90 Capsules For Men And Women | By Piping Rock
4.4
181
W
Walmart
$
11
.
99
This product is praised for its effectiveness in calming anxiety, stomach emotions, and sleep. It is essential in vitamins and has a high dosage, requiring fewer pills. However, some users experienced dry eyes and loss of concentration after using the product.
365 By Whole Foods Market, Free-Form L-Tryptophan 500Mg, Vegan, 60 Capsules
A
Amazon.com
$
18
.
98
365 By Whole Foods Market, Free-Form L-Tryptophan 500Mg, Vegan, 60 Capsules
A
Amazon.com
$
18
.
98
L-Tryptophan 500Mg Per Capsule (120 Vegetarian Capsules) - No Stearates - No Silica - No Gelatin - Vegan - Gluten Free - Non GMO
4.6
140
W
Walmart
$
17
.
99
L-Tryptophan 500Mg Per Capsule (120 Vegetarian Capsules) - No Stearates - No Silica - No Gelatin - Vegan - Gluten Free - Non GMO
4.6
140
W
Walmart
$
17
.
99
Free shipping
This supplement is praised for its effectiveness in improving sleep, mood, and quality. It is a natural antidepressant that works better than prescription medications. However, some users experienced side effects or questioned its effectiveness.
L-Tryptophan 2Fl Oz
C
Covenant Health Products
$
21
L-Tryptophan 2Fl Oz
C
Covenant Health Products
$
21
L-Tryptophan 1000Mg - 120 Tablets
4.3
939
T
Target
$
14
.
99
$
25
.
99
L-Tryptophan 1000Mg - 120 Tablets
4.3
939
T
Target
$
14
.
99
$
25
.
99
Free shipping
L-Tryptophan 500 G
G
GoldBio
$
147
L-Tryptophan 500 G
G
GoldBio
$
147
Best Naturals L-Tryptophan 500 Mg 120 Capsules (120 Count (Pack Of 3))
4.5
259
A
Amazon.com
$
35
.
65
Best Naturals L-Tryptophan 500 Mg 120 Capsules (120 Count (Pack Of 3))
4.5
259
A
Amazon.com
$
35
.
65
These L-Tryptophan tablets are praised for helping users sleep better, stay asleep, and have positive mood. They are large and easy to swallow, with some users finding them difficult to swallow. However, some users did not notice significant changes in their sleep or mood.
(2 Pack) Best Naturals L-Tryptophan 1000 Mg 60 Tablets
4.6
178
W
Walmart
$
17
.
98
$
19
.
98
(2 Pack) Best Naturals L-Tryptophan 1000 Mg 60 Tablets
4.6
178
W
Walmart
$
17
.
98
$
19
.
98
These L-Tryptophan tablets are praised for helping users sleep better, stay asleep, and have positive mood. They are large and easy to swallow, with some users finding them difficult to swallow. However, some users did not notice significant changes in their sleep or mood.
3 Pack Best Naturals L-Tryptophan 1000 Mg 60 Tablets
4.6
178
W
Walmart
$
25
.
47
3 Pack Best Naturals L-Tryptophan 1000 Mg 60 Tablets
4.6
178
W
Walmart
$
25
.
47
These L-Tryptophan tablets are praised for helping users sleep better, stay asleep, and have positive mood. They are large and easy to swallow, with some users finding them difficult to swallow. However, some users did not notice significant changes in their sleep or mood.
17% drop
Thermo Scientific Chemicals DL-Tryptophan, 99%
F
Fisher Scientific
$
28
.
65
17% drop
Thermo Scientific Chemicals DL-Tryptophan, 99%
F
Fisher Scientific
$
28
.
65
Himedia - M1339-500G - Medium Tryptophan 500G Indole Detn (Each)
N
Neobits
$
94
.
95
Himedia - M1339-500G - Medium Tryptophan 500G Indole Detn (Each)
N
Neobits
$
94
.
95
Himedia - M1339-5Kg - Medium Tryptophan 5Kg Indole Detn (Each)
N
Neobits
$
897
.
68
Himedia - M1339-5Kg - Medium Tryptophan 5Kg Indole Detn (Each)
N
Neobits
$
897
.
68
Dr Giorgini Tryptophan Plus 80 Tablets Of 500 Mg - 40 Gr
Q
Qathu
$
26
Dr Giorgini Tryptophan Plus 80 Tablets Of 500 Mg - 40 Gr
Q
Qathu
$
26
Dr Giorgini Tryptophan Plus 40 G - Tablets Of 500 Mg
Q
Qathu
$
27
Dr Giorgini Tryptophan Plus 40 G - Tablets Of 500 Mg
Q
Qathu
$
27
Lidtke, L-Tryptophan Complete, 60 Veg Caps
4.4
140
H
HPU
$
29
.
95
Lidtke, L-Tryptophan Complete, 60 Veg Caps
4.4
140
H
HPU
$
29
.
95
Dr Giorgini Tryptophan Plus 40 G - Tablets Of 500 Mg
R
Realry
$
27
Dr Giorgini Tryptophan Plus 40 G - Tablets Of 500 Mg
R
Realry
$
27
Lidtke, L-Tryptophan, 120 Veg Caps
5
14
H
HPU
$
35
.
96
$
39
.
95
Lidtke, L-Tryptophan, 120 Veg Caps
5
14
H
HPU
$
35
.
96
$
39
.
95
This product is highly recommended for its effectiveness in reducing anxiety and improving sleep quality. It is made from clean ingredients and contains no fillers. Users report noticeable improvements after taking just one capsule before bedtime.
Indofine Chemical - BIO-432 - L-Tryptophan, 100Gm, ( Each )
N
Neobits
$
153
.
95
Indofine Chemical - BIO-432 - L-Tryptophan, 100Gm, ( Each )
N
Neobits
$
153
.
95
Life Extension L Tryptophan 500 Mg - Promotes Healthy Sleep & Satiety 90 Capsule
4.4
526
E
Everymarket INC
$
63
.
76
Life Extension L Tryptophan 500 Mg - Promotes Healthy Sleep & Satiety 90 Capsule
4.4
526
E
Everymarket INC
$
63
.
76
This sleep supplement is highly recommended for its effectiveness in supporting good sleep and helping users fall asleep. However, some users experienced no significant difference or had difficulty with the product.
Zeinpharma Zeinp Harma Germany L Tryptophan 500Mg 90 Capsules 1 X 54 G
4.4
35
I
ibspot
$
54
.
15
Zeinpharma Zeinp Harma Germany L Tryptophan 500Mg 90 Capsules 1 X 54 G
4.4
35
I
ibspot
$
54
.
15
Nefergi Tryptophan, 1,2,600 Mg, 30 60 Day Supply, 60 Tablets, Gmp Domestic Factory, Serotonin, Vitamin
E
Everymarket INC
$
24
.
86
Nefergi Tryptophan, 1,2,600 Mg, 30 60 Day Supply, 60 Tablets, Gmp Domestic Factory, Serotonin, Vitamin
E
Everymarket INC
$
24
.
86
Natural Sk L-Tryptophan 450 Mg 60 Capsules
Q
Qathu
$
20
$
24
Natural Sk L-Tryptophan 450 Mg 60 Capsules
Q
Qathu
$
20
$
24
Gloryfeel L Tryptophan 500 Mg 240 St
E
Everymarket INC
$
71
.
40
Gloryfeel L Tryptophan 500 Mg 240 St
E
Everymarket INC
$
71
.
40
Vitaworld L Tryptophan 250 Mg Kapseln, 120 St. Kapseln
E
Everymarket INC
$
55
.
54
Vitaworld L Tryptophan 250 Mg Kapseln, 120 St. Kapseln
E
Everymarket INC
$
55
.
54
[I Herb] Source Naturals L Tryptophan 500Mg 60 Capsules, Calcium With Coenzyme B 6, Essential Amino Acids Source Natural
E
Everymarket INC
$
35
.
41
[I Herb] Source Naturals L Tryptophan 500Mg 60 Capsules, Calcium With Coenzyme B 6, Essential Amino Acids Source Natural
E
Everymarket INC
$
35
.
41
Bestvite.Com L-Tryptophan 500Mg, 120 Vegetarian Capsules
4.6
140
S
Shop
$
13
.
99
Bestvite.Com L-Tryptophan 500Mg, 120 Vegetarian Capsules
4.6
140
S
Shop
$
13
.
99
This supplement is praised for its effectiveness in improving sleep, mood, and quality. It is a natural antidepressant that works better than prescription medications. However, some users experienced side effects or questioned its effectiveness.
Vegavero L Tryptophan | 500 Mg Per Capsule High Dosage | Alternative To 5 Htp & Melatonin | 120 Capsules | 4 Month Sup
E
Everymarket INC
$
51
.
40
Vegavero L Tryptophan | 500 Mg Per Capsule High Dosage | Alternative To 5 Htp & Melatonin | 120 Capsules | 4 Month Sup
E
Everymarket INC
$
51
.
40
Tryptophan 100G BIOMUS
M
marktbio
$
11
.
79
Tryptophan 100G BIOMUS
M
marktbio
$
11
.
79
Now Foods L-Tryptophan Powder 2Oz - 0263
T
The Oasis of Health
$
33
.
28
Now Foods L-Tryptophan Powder 2Oz - 0263
T
The Oasis of Health
$
33
.
28
Now L-Tryptophan 500Mg Capsules
4.4
10K+
E
eCosmetics
$
39
.
09
Now L-Tryptophan 500Mg Capsules
4.4
10K+
E
eCosmetics
$
39
.
09
This product is highly effective for sleep aids, helping users fall asleep quickly and maintain a sound night. It is recommended to take in capsules with melatonin for optimal results. However, one user experienced an issue with the powder.
L-Tryptophan Capsules 500Mg Clean Natural L-Tryptophan Powder Eco-Friendly Vegan Supplements
4.8
4
E
Etsy
$
16
.
73
$
20
.
91
L-Tryptophan Capsules 500Mg Clean Natural L-Tryptophan Powder Eco-Friendly Vegan Supplements
4.8
4
E
Etsy
$
16
.
73
$
20
.
91
100% L-Tryptophan >> 100 CAPS / 500 MG
5
1
E
Etsy
$
12
.
95
100% L-Tryptophan >> 100 CAPS / 500 MG
5
1
E
Etsy
$
12
.
95
L5hydroxy Tryptophan 60 Caps By Solaray
4.6
47
D
delupe.com
$
46
.
39
L5hydroxy Tryptophan 60 Caps By Solaray
4.6
47
D
delupe.com
$
46
.
39
L-Tryptophan Capsules 500Mg (High Strength) Pure, No Additives, No Fillers
5
5
E
Etsy
$
9
.
77
L-Tryptophan Capsules 500Mg (High Strength) Pure, No Additives, No Fillers
5
5
E
Etsy
$
9
.
77
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