Your Cart is Empty
But it doesn't have to be.
Continue Shopping.
Added to Cart
Cart Total:
Customers Also Bought:

iHerb Customer Reviews



Savings of: $15.78 (46% off)

Sorry, this product is no longer in stock.

Write a Review
  • Doctor's Best uses exclusively the Tryptopure brand of Tryptophan, manufactured by Ajinomoto of Japan.
  • Reviews | English
    Sort By

    So glad to find in the US again

    Posted by Reviewer1358304 on Apr 09, 2009

    I bought this plain L-Tryptophan and True Calm at iherb. It is the same combination I had in one product before it became illegal in 1989 in the US. I have discovered since buying these 2 products that Doctor's Best also makes L-tryptophan Enhanced with all ingredients of the 2 items I just got. I will buy that from now on. The combo puts a smile on my face and positive thoughts in my clear head. I love it for life!

    Was this review helpful to you?

    It does work, but a low protein diet is needed for it

    Posted by Reviewer3011057 on Sep 20, 2008

    The product from Doctor's Best seems to be of a very good quality. But talking about the L-Tryptophan, it needs a very low protein diet to work (amino acids "compete" for passage through the blood-brain barrier - BBB). As my protein intake is high and I don't suffer of any kind of depression, I don't know if it's worth changing my eating habits for it. I just have a small sleep disturb... But as the majority of people don't eat a high protein diet, it will work fine for mood, sleep, depression, appetite and immune system.

    Was this review helpful to you?

    Blessed Sleep!

    Posted by Reviewer2123884 on Sep 22, 2008

    I have Chronic Fatigue Syndrome. My seratonin levels have been messed up for years now. While I take some prescription meds for some of the symtoms, I still have problems sleeping and when I do get a migraine, I need some real help. The Best L-Tryptophan is wonderful. I take one before I go to bed in the evening and the quality of my sleep is so much improved. I use it every night and know I'll get a better night's sleep because of it.

    Was this review helpful to you?

    Good for Falling Asleep

    Posted by Reviewer1158388 on Sep 24, 2008

    This product is good for falling asleep or winding down at night. However, it did not keep me asleep for the entire night so if staying asleep is your problem, this may not be the right thing for you. But if you just have trouble falling asleep then it will probably work well for you.

    Was this review helpful to you?

    Doctor's Best L-Tryptophan

    Posted by Reviewer1551960 on Jan 27, 2009

    This product was very good and fairly fast acting.

    Was this review helpful to you?


    Posted by Reviewer3345671 on Nov 06, 2007

    I really liked it. It made me sleep much better and combinded with 5-HTP i think it was helpful to my emotional well being

    Was this review helpful to you?


    Posted by Reviewer1511087 on Nov 30, 2007

    but not if very resistant to sleep

    Was this review helpful to you?

    Good for sleep

    Posted by Reviewer2205231 on Jan 29, 2008

    I really like this for getting better sleep---I take one before bedtime and usually sleep the whole night through. It helps with mood also.

    Was this review helpful to you?

    Sleep Aid

    Posted by Reviewer1180981 on Feb 27, 2008

    I have had sleep problems for years and this product has helped greatly in getting me to sleep.

    Was this review helpful to you?


    Posted by Reviewer1919759 on Mar 22, 2008

    It helped me to get to sleep at night.

    Was this review helpful to you?

    Items 1-10 of 31 total

    « Previous | 1 2 3 4 | Next »