Vitacost Ratings and Reviews

5-HTP(538)
Algae(812)
Amino Acids(1,712)
Bee Pollen(312)
Caffeine(36)
Calcium(3,669)
Celadrin(79)
Charcoal(86)
Chitosan(43)
Chlorella(160)
Choline(135)
CoQ10(2,405)
Coconut Oil(3,759)
Collagen(276)
Colostrum(175)
D-Mannose(56)
DHEA(408)
DMAE(79)
EFAs(3,528)
EpiCor(35)
FOS(2)
Fish Oil(1,481)
GABA(185)
GLA(7)
GPLC(23)
Gelatin(15)
Glycine(9)
HGH(46)
Iodine(54)
Iron(537)
Krill Oil(729)
Lecithin(249)
Lithium(6)
Lutein(359)
Lycopene(102)
MSM(418)
Magnesium(1,994)
Melatonin(1,128)
Multivitamins(11,730)
NADH(51)
Omega-3(5,114)
Pectin(21)
Probiotics(5,558)
Propolis(72)
Pycnogenol(145)
Quercetin(129)
RNA/DNA(1)
Red Wine(11)
Relora(2)
SAMe(589)
Silica(19)
Soy(74)
Spirulina(105)
Vitamin A(148)
Vitamin B(4,962)
Vitamin C(2,856)
Vitamin D(2,625)
Vitamin E(529)
Vitamin K(303)
Yeast(62)
Zinc(364)
Shop Now At Vitacost
Shop L-Tryptophan or
Choose a Category
Top-rated product

Product Reviews

Source Naturals L-Tryptophan with Coenzyme B-6 -- 500 mg - 120 Tablets

Mood Relaxation and Sleep. The essential amino acid L-tryptophan helps support relaxation restful sleep and a positive outlook. It play a part in the synthesis of both melatonin and serotonin hormones involved with mood and stress response. This tryptophan includes the activated coenzyme from of vitamin B-6 called P-5-P that is required to convert tryptophan to serotonin. L-Tryptophan also support immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed L-tryptophan converts to niacin in the body which supports circulation a healty nervous system the metabolism of food and the production of hydrochloric acid for the digestive system. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.
Overall rating:
4.667 / 5
4.7
 / 
5
(6 reviews) 4
Open Ratings Snapshot
Rating breakdown 6 reviews
5 Stars
4
4 Stars
2
3 Stars
0
2 Stars
0
1 Star
0
6 out of 6(100%)customers recommend this product.
Customer reviews for Source Naturals L-Tryptophan with Coenzyme B-6 -- 500 mg - 120 Tablets
Review 1 for Source Naturals L-Tryptophan with Coenzyme B-6 -- 500 mg - 120 Tablets
Overall rating:
5 / 5
5 / 5
donbon
fromColorado
Age:55-64
Gender:Female
excellent sleep aid
 June 17, 2015
"I have found this to be an excellent sleep aid. Source Naturals
has added B6 to the L-Tryptophan and it makes such a difference
in the effectiveness of the supplement.
"
+1point
1of 1voted this as helpful.
Review 2 for Source Naturals L-Tryptophan with Coenzyme B-6 -- 500 mg - 120 Tablets
Overall rating:
5 / 5
5 / 5
Lloyd55
fromCA.
Age:55-64
Gender:Male
Great Product
 January 28, 2015
"I have been using this product for a while now.I have had good results
will continue buying it. Good price as well.
"
+1point
1of 1voted this as helpful.
Review 3 for Source Naturals L-Tryptophan with Coenzyme B-6 -- 500 mg - 120 Tablets
Overall rating:
5 / 5
5 / 5
healthyph
fromRoseville. CA
Age:55-64
Gender:Female
Lifesaver!
 January 1, 2015
"These are so helpful when I wake up in the middle of the night! And no grogginess in the morning!!!"
0points
0of 0voted this as helpful.
Review 4 for Source Naturals L-Tryptophan with Coenzyme B-6 -- 500 mg - 120 Tablets
Overall rating:
5 / 5
5 / 5
JanLuv
fromMichigan
Age:65-74
Gender:Female
Daily supplement usage:6+ supplements daily
Referral source:Other
Reason for usage:Specific health concern
Duration of use:Over 180 days
helps me sleep
 May 14, 2010
"I was so sad when L Tryptophan was taken off the market. I feel the vegetarian one is quite safe. I sleep so much better with it and melatonin. I don't take it every night, but when needed."
+1point
5of 9voted this as helpful.
Ratings-only reviews for Source Naturals L-Tryptophan with Coenzyme B-6 -- 500 mg - 120 Tablets
Based on the average of (2) ratings-only reviews
Overall rating:
4 / 5
4 / 5
2 out of 2 recommend this product