Best D-Phenylalanine 500 mg - 60 Veggie Caps

by Doctor's Best
    4.6
  •  
  •  
  •  
  •  
  •  

"Best D-Phenylalanine works great. Great amino acids."  Read all reviews

Quantity per Container: 60 Capsules
Item Number: DRB1072
Serving Size: 1 Capsule Servings per Container: 60
Price per Serving:  0.29 Price per Unit*: $0.29 per Capsule
* Price Per Unit may reflect product's price per capsule, tablet, ounce, fluid ounce, etc.
Only 5 In Stock - ORDER NOW. This item will ship today if ordered within 8 hr 45 min
Regular Price:  27.99 17.64
Free Shipping
Deliver one time only
Autoship every days. Never run out.
- +
 

    Doctor’s Best D-phenylalanine is a non-protein amino acid related to the essential amino acid L-phenylalanine. D- and L-phenylalanine are structural mirror images of each other. D-phenylalanine is reported to inhibit an enzyme (enkephalinase) that degrades enkephalins‚ which are naturally occurring substances in the body that belong to the class of compounds known as "endorphins." D-phenylalanine slows the action of the enzymes carboxypeptidase A‚ endorphinase and enkephalinase that degrade endorphins. Endorphins are neurotransmitters your body releases that bind to specialized receptors that trigger two actions. This process blocks the neurotransmitters that cause you to experience pain. It also makes your brain release more of the neurotransmitter dopamine. D-phenylalanine has twice the endorphinase inhibitory effect of D‚ L-phenylalanine. Slowing down this endorphin-reducing mechanism may help diminish pain.



    These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.


  • MFG # DRB-00110
  • UPC # 753950001107
Official Website: http://www.drbvitamins.com

Serving Size: 1 Capsule
Servings Per Container: 60

Amount Per Serving / % DV

D-Phenylalanine 500mg / †

†Daily Value not established.

Other Ingredients: Modified cellulose (vegetarian capsule)‚ cellulose‚ magnesium stearate (vegetable source).

Non-GMO / Gluten-Free / Vegan / Vegetarian.

Take 1 or 2 capsules daily‚ between meals‚ or as recommended by a nutritionally informed physician.

Phenylalanine supplements should not be taken by individuals with phenylketonuria (PKU)‚ children‚ pregnant or lactating women‚ people with high blood pressure‚ and anyone taking anti-psychotic medications or MAO inhibitors.

Store in a cool‚ dry place.

  • Gluten Free
  • GMO Free
  • Vegan
  • Vegetarian

Ratings and Reviews

Write a Review
    4.6
  •  
  •  
  •  
  •  
  •  
  • Average Rating: 4.6 out of 5 stars
5 9
9 Reviews
  • Verified Buyer

    Good amino acid

      5
      •  
      •  
      •  
      •  
      •  
    from iowa on 10/24/2016
    Best D-Phenylalanine 500 mg by Doctor's Best has good amino acids. Sometimes it works better than other times as it is supposed to raise endorphins but need to build in the system for some people.

    Pros

    Good amino acid.

    Cons

    I would recommend this item to a friend.
  • The Best!

      5
      •  
      •  
      •  
      •  
      •  
    from usa on 12/13/2015
    Best D-Phenylalanine by Doctor's Best keeps me steady during stressful times. Makes me go from feeling like I want to cry to feeling happy and comfortable.
    I would recommend this item to a friend.
  • Great Item great price.

      5
      •  
      •  
      •  
      •  
      •  
    from usa on 7/02/2015
    Best D-Phenylalanine by Doctor is really hard to find. Why? I don't know but this brand works great and is inexpensive. You can't beat that.
    I would recommend this item to a friend.
  • Verified Buyer

    BAD FOR BIPOLAR DISORDER

      1
      •  
    from USA on 2/23/2015
    I tried just one pill of Doctor's Best D-Phenylalanine in the morning, and I found myself very irritated, edgy, agitated for the entire day and night. (Mania in Bipolar can show as euphoric/elated or very irritable.) This definitely triggered irritable mania in me. I have read in online article that it is bad for Bipolar Disorder but hoped the increase in endorphins would improve my mood. Not the case with this supplement. But this should be good for muscle pain especially for those with MS. Better for Bipolar are inositol, choline bitartrate, cod liver oil, amino acids, mineral formula, lithium orotate, Magnesium, vitamin D3, and especially "Daily Essential Nutrients" by Hardy Nutritionals. With Bipolar or Mood disorders: Definitely check your levels of thyroid (TSH, Free-T3, Free-T4), Vit D (the NEWER test), Magnesium RBC, blood sugar issues, iron/ferritin, electrolytes, protein, loading iodine test, hormonal levels.

    Pros

    It should be a very good form of phenylalanine for most people with muscle pain, especially in MS, as it is much less stimulating to them. Compliments LDN (Low Dose Naltrexone) treatment for MS.

    Cons

    Contraindicated for Bipolar Disorder.
  • Take to get a lift in mood

      5
      •  
      •  
      •  
      •  
      •  
    from South Burlington, VT on 11/17/2014
    I usually take this in the morning before breakfast and before lunch to increase endorphins and raise my mood. It works and I would not live without it. I encourage you to take with a bit of something sweet like a sip of juice to help the body absorb and use it.

    Pros

    easy to take and it works great

    Cons

    I would recommend this item to a friend.
  • Verified Buyer

    AMAZING SUPPLEMENT

      5
      •  
      •  
      •  
      •  
      •  
    from Tempe, Arizona on 6/22/2014
    I take this supplement 3 times a day everyday. It helped with my recovery off of opiates. On top of that I take it everyday to reduce cravings for junk food and opiates. It also helps tremendously with my chronic pain. I recommend this supplement to anyone with pain or endorphin issues.
    I would recommend this item to a friend.
  • Verified Buyer

    So far so good

      5
      •  
      •  
      •  
      •  
      •  
    from Sunny Ca on 5/16/2014
    Will know more later I also use low dose naltrexone (LDN) for auto immune health keeping endorphin levels increased is one key to immune health.

    Pros

    Easy order

    Cons

    I would recommend this item to a friend.
  • Verified Buyer

    Take for a sharp mind!

      5
      •  
      •  
      •  
      •  
      •  
    from Los Angeles, CA on 3/10/2014
    I purchased this after researching the mind and our moods etc. I read you can even take this before bed to help remember the dreams you have. And just general sharpness of the mind. Good stuff.
    I would recommend this item to a friend.
  • Essential amino acids

      5
      •  
      •  
      •  
      •  
      •  
    from Coral Gables, FL on 7/24/2013
    Best D-Phenylalanine works great. Great amino acids.
    I would recommend this item to a friend.

Customer Questions and Answers

Please ask any questions you may have about this specific product in the field below.

Your question(s) and our corresponding answer(s) will not be confidential and will be posted publically on this specific product page.

Additionally, PureFormulas is unable to directly recommend products in relation to specific health conditions. Please contact your trusted healthcare practitioner for direct product recommendations.

If you have any general questions regarding orders or our policies and programs, please contact our Customer Happiness Team @ 1.800.383.6008

If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Your healthcare professional is the best source for guidance before beginning an exercise or nutritional supplement program.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Ask a Question

Please log in to submit a question Log In