Source Naturals

Source Naturals DLPA DL-Phenylalanine 375 mg Supplement That Supports an Alert State - 60 Tablets

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$4.83$10.50

About this item

  • SUPPORT AN ALERT STATE OF MIND. . These are proteins that bind to opioid receptor sites in the brain, thereby influencing the perception of discomfort. By obstructing the action of this enzyme, DPA may extend the life of endorphins and enkephalins and their positive influence on comfort levels. L-Phenylalanine is the precursor to two neurotransmitters that help support an alert state.
  • SUGGESTED USE. 1 to 2 tablets 1 to 2 times daily.
  • TRUSTED FOR OVER 35 YEARS. Source Naturals was created in 1982 by CEO Ira Goldberg to support each individual's potential to enjoy optimal health.
  • MANUFACTURED IN THE USA. Our facility is located in Scotts Valley California.
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Product details

BrandSource Naturals
FlavorUnflavored
Primary Supplement TypeDL-Phenylalanine
Unit Count60.00 Count
Item FormTablet
Item Weight2.24 ounces
Age Range (Description)Adult
Number of Items60
Servings per Container60
Dosage FormTablets

Technical specifications

is_discontinued_by_manufacturerNo
item_model_number4332489582
date_first_availableDecember 30, 2008
manufacturerSource Naturals, Inc.
best_sellers_rank#253,621 in Health & Household ( See Top 100 in Health & Household ) #12,156 in Blended Vitamin & Mineral Supplements

Product videos

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Customer reviews

4.3176 ratings

Customers say

Customers find the supplement effective for focus and calm, with one reporting immediate long-lasting effects, and many noting it helps with mood and energy levels. Customers have mixed opinions about the amino acid content and size of the tablets.

★★★★★

inexpensive and worth a try!

EJDecember 8, 2017

I continue to be amazed at how nutrition has had such a profound effect on my health and brain. Since I started taking more vitamin B and C, my life has improved, and I continue to learn about more things to try out. I recently read about DLPA, and I'm glad I did. I wish medical professionals knew more about nutrition and focused less on pharmaceuticals (don't we all).... day 3. I bought these hoping to see results. I have been frustrated with my brain for a while now- memory, stress, anxiety, mood issues, as well as pain mainly from herniated discs. I bought this because it was inexpensive and worth a try. I'm very pleased to report that I feel more focused and less distracted. I hope my memory will improve, though it's too soon to say. One thing I noticed immediately: I'm not hungry all the time. This I was not expecting, but it's this DLPA that's doing it. Before I took this, I have had the hardest time just getting up and doing stuff- even stuff I know I need to do. I can talk myself out of anything. I have an endless list of unfinished projects and ideas with no follow through. Well in the last 2 days, I've been productive without the inner dialogue talking me out of things. I don't notice pain as much, either. If you haven't tried this, it's cheap enough that it's worth a shot. It's said to help the following: depression, stress, anxiety, focus, addiction, pain.... do a little research and try this stuff out Read more

★★★★★

Quality and Effective

Mountain AirJanuary 16, 2015

Product is good. Have bought this brand many times, always good quality. No broken pills or powdery ick, sealed well. Whether its wishful thinking or scientific evidence......seems to contain chronic shoulder pain from repetitive motion injury acquired over thirty five years on the job. Every six to ten months the pills are stopped, then started up again when pain reappears, as it always does. Non-narcotic!! Read more

★★★★☆

Great product

Eileen R.May 4, 2020

I like that it help me stay calm Read more

★★★★★

Indispensable Part of Amino Acid Therapy.

LHBMay 13, 2019

If you are using amino acids as part of your recovery from addiction (especially alcoholism) I have found this supplement to be an essential part of my regimen. The great thing about amino acids is that you can usually tell right away if they are helping or not. For example, many people report benefits from L Tryptophan but it made me feel lousy. This, on the other hand, makes me feel great. It has major positive affects on my energy, motivation and focus without making me feel in the slightest bit anxious or edgy except for a very brief period about 15-20 minutes after taking a tablet (kind of like the brief "GABA flush'). I can no longer take opioid pain medications on a daily basis and this seems to help very much along with Turmeric and Magnesium to the point that I have not taken even an Advil in two weeks. This stuff is ridiculously cheap in light of what you get (I only take one tablet per day shortly after waking) and it's affects persist throughout the day. Source Naturals is one of three brands that I consider to be "best" when it comes to supplements in general and this one is no exception. Read more

★★★★★

I've never felt better

Capt. Sam J.April 6, 2025

I rarely write reviews but this product deserves one. I've been taking it for several weeks and I have never felt better. I'm taking 2 in the morning and 2 at night. I'm not as grumpy in the mornings and my wife has noticed a difference. I'm ordering again and putting it on subscribe and save. Read more

★★★☆☆

Felt at peace... for like an hour or 2

jessicaOctober 16, 2020

I noticed these give me a sense of peace, taking off the edge. (I have ADHD) and it would last for like an hour or two. wore off super fast. I don't recommend. waste of money. I recommend Sports Research L-Theanine. far more superior product, immediate long lasting effect for focus and calm. Read more

★★★★★

I LOVE this product

H. S.January 7, 2017

I LOVE this product! I was seeking a product that would help me with focus and mental clarity and boost mood and energy. DLPA does all of these things and I can't rave about enough! It delivers a sharp mental clarity without jitters or hyperactivity. Attention and focus are doubled. Mood and energy are doubled! Another wonderful benefit is this seems to have suppressed my appetite quite a bit! I just feel full on less! I highly recommend this supplement! I did not receive this supplement for any discount (although I wish I did)! Worth every penny... Read more

★★★★★

Excellent

CustomerJune 22, 2019

Excellent. Source naturals is a dependable brand for quality, effective supplements. It definately does what its supposed to do, and can make an extremely difficult process of healing and recovery so much better. Watch what milligram you order; the highest is 750 /pill, take 3x daily. This one is half that, but the pills are smaller, so its really your preference. Read more

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