USP Pharmaceutical grade. Featuring Ajinomoto's TryptoPure™ L-tryptophan is an essential amino acid (protein building block) in human nutrition. Essential amino acids are not synthesized by the body and must be obtained in the diet. The L-tryptophan in this product is manufactured and tested for purity according to the United States Pharmacopeia (USP) standards.
Average Customer Rating:
4 out of 5
2 of 3 (67%) customers would recommend this product to a friend.
Customer Reviews for Doctor's Best Best L-Tryptophan Powder -- 500 mg - 50 g
Overall Rating:
2
out of 5
Does not mix in liquids,
October 2, 2008
By JPS1from Honolulu
Value:
2
out of 5
Quality:
2
out of 5
Effectiveness:
3
out of 5
Satisfaction:
2
out of 5
"I have to put in on Foods(like a banana). It tastes metallic. It just floats in water and does not dissolve. It does make my sleep longer and deeper sometimes."
Age:
45-54
Gender:
Male
Daily supplement usage:
6+ supplements daily
Referral source:
Friend
Reason for usage:
Specific health concern
Duration of use:
30-60 days
Share this Review:
Review 2 for Doctor's Best Best L-Tryptophan Powder -- 500 mg - 50 g
Overall Rating:
5
out of 5
good value,
August 16, 2008
By seaglefrom MO, NE, OK, IN
Value:
5
out of 5
Quality:
4
out of 5
Effectiveness:
4
out of 5
Satisfaction:
5
out of 5
"I have tried this powder in bulk and one other compay's capsules. This powder is more effective and less costly. Cycling the use-like other products - 5 days on and 2 days off-helps keep the effectiveness higher-which I didn't know if it would or not - with a sleep aid."
Age:
45-54
Gender:
Male
Daily supplement usage:
3-5 supplements daily
Reason for usage:
Promote overall health
Duration of use:
61-180 days
Share this Review:
Review 3 for Doctor's Best Best L-Tryptophan Powder -- 500 mg - 50 g
Overall Rating:
5
out of 5
This works well!,
May 31, 2007
By Pegtuckyfrom Clay City, Illinois
Value:
5
out of 5
Quality:
5
out of 5
Effectiveness:
5
out of 5
Satisfaction:
4
out of 5
"I like this powdered form of tryptophan because it works quicker than tryptophan in the capsules. I add the tryptophan powder to 1/8 cup of water and shake it in a shaker cup. This is better than stirring it."
Age:
55-64
Gender:
Female
Daily supplement usage:
1-2 supplements daily
Referral source:
Self-referred
Reason for usage:
Specific health concern
Duration of use:
61-180 days
