Vitacost Ratings and Reviews

5-HTP(504)
Amino Acids(1,328)
Calcium(3,505)
CoQ10(2,349)
Coconut Oil(3,247)
EFAs(3,344)
Fish Oil(1,485)
Iron(532)
Krill Oil(728)
Magnesium(1,697)
Melatonin(1,024)
Multivitamins(10,886)
Omega-3(4,711)
Algae(738)
Bee Pollen(276)
Caffeine(35)
Celadrin(78)
Charcoal(83)
Chitosan(40)
Chlorella(137)
Choline(127)
Collagen(223)
Colostrum(172)
D-Mannose(47)
DHEA(377)
DMAE(76)
EFAs(107)
EpiCor(30)
FOS(2)
GABA(159)
GLA(7)
GPLC(27)
Gelatin(13)
Glycine(7)
HGH(43)
Iodine(44)
L-Lysine(145)
L-Theanine(199)
LPP(39)
Lecithin(224)
Lithium(3)
Lutein(328)
Lycopene(96)
MSM(374)
NADH(46)
Pectin(39)
Propolis(71)
Pycnogenol(135)
Quercetin(124)
RNA/DNA(2)
Red Wine(10)
Relora(2)
Silica(17)
Soy(98)
Taurine(78)
Yeast(71)
Probiotics(4,863)
SAMe(548)
Spirulina(83)
Vitamin A(133)
Vitamin B(4,443)
Vitamin C(2,669)
Vitamin D(2,363)
Vitamin E(465)
Vitamin K(257)
Whole Foods(1,182)
Zinc(343)
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 - 30 Tablets

Mood Relaxation and Sleep. The essential amino acid L-tryptophan helps support relaxation restful sleep and a positive outlook. It plays a part in the synthesis of both melatonin and serotonin hormones involved with mood and stress response. This tryptophan includes the activated coenzyme form of vitamin B-6 called P-5-P that is required to convert tryptophan to serotonin. L-tryptophan also supports 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 healthy nervous system the metabolism of food and the healthy 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:
5 / 5
5
 / 
5
(1 review) 1
Open Ratings Snapshot
Rating breakdown 1 review
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
1 out of 1(100%)customers recommend this product.
Customer reviews for Source Naturals L-Tryptophan with Coenzyme B-6 -- 500 mg - 30 Tablets
Review 1 for Source Naturals L-Tryptophan with Coenzyme B-6 -- 500 mg - 30 Tablets
Overall rating:
5 / 5
5 / 5
Value:
4 / 5
4 / 5
Quality:
5 / 5
5 / 5
Effectiveness:
5 / 5
5 / 5
princesa
fromWesley Chapel, FL
Age:25-34
Gender:Female
Daily supplement usage:6+ supplements daily
Referral source:Self-referred
Reason for usage:Promote overall health
Duration of use:30-60 days
excellent product
 June 14, 2009
"It helped me stay relaxed and focused and also helped me sleep better. I sugest to take only at night, start with one."
+1point
2of 3voted this as helpful.