Swanson Premium

DL-Phenylalanine

Swanson $5.49

Item #: SW873
Availability: In Stock
500 mg 100 Caps
Caps size = O*, Pill Size Guide

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  • An amino acid supplement for specialized dietary support

  • Plays a key role in neurotransmitter function

  • 500 mg per capsule
Get a nutritional boost with Swanson DL-Phenylalanine (DLPA)! A great source of amino acid precursors for neurotransmitters that help regulate mood and other mental functions, DL-Phenylalanine is an essential amino acid that cannot be made in the body and must be supplied by food.

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving % Daily Value
DL-Phenylalanine 500 mg *

*Daily Value not established.

Other ingredients: Gelatin, magnesium stearate.

Suggested Use: As a dietary supplement, take one capsule one to two times per day with water.

WARNING: Do not take this product if you are pregnant or nursing, have phenylketonuria, or are taking MAOIs, levodopa, or antipsychotic medications. Consult your healthcare provider before use if you take any prescription medications.

Terms and Ingredient Definitions

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

DL-Phenylalanine 4.6 5 9 12
Boost in the morning This amino acid gives me a little boost without the jitters. November 28, 2011
I use it every day A pschological and physical boost. I take two twice a day. February 9, 2011
Mood and Energy Booster I take DL-Phenylalanine to boost my mood and energy. I take it between breakfast and lunch on an empty stomach and it works in 20 minutes. The product is quality as all Swanson products are. August 11, 2010
Not very effective If you search the internet you will find the benefits of both the D and L forms of phenylalanine. While I am usually more than satisfied with Swanson's products, this particular one did not work for me. I've found that Country Life brand with B-6 works much better. I won't reorder this one again. I hope Swanson's will soon carry the other product. July 3, 2010
I feel great I am using this product plus the 5htp at bed time. I seem to have more self control, clarity of thought and I get a great night of sleep!!! February 2, 2010
Protects endorphine levels This essential amino acid helps keep a sunnier mood by slowing the breakdown of endorphins, our natural opiates, in the central nervous system. My husband and I take DLPA (DL-Phenylalanine) daily for a mood brightener and mild appetite suppressant. We're glad to find it in the strength we want at a good price from Swanson Vitamins. November 9, 2009
Great Product This product gives a nice clean energy. The mood lift is definitely there as well. Although, it is more drive and motivation related as opposed to satiation. Very nice product. August 18, 2009
Great mood lifter! I have used this for about 4 years now. It works wonders during the long winter months. Great mood lifter. Also, it has no side effects that I have seen. Which is nice since so many things now a days have negative effects with long term use. Not this one, it works great. March 4, 2009
Sunshine in a bottle Combined with a daily B complex C, it acts like a mood lifter for getting through those long winter nights, or a series of cloudy days. I've used it for years. I'm happy to find a great source at Swanson, that lasts for 3 months. December 26, 2007
1-10 of 10

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