$4.99 Free Standard Shipping Only on Orders $50+ See Details
Free Shipping Icon

X

All

Shop Specialties

Doctor's Best

Best D-Phenylalanine

Item: DB196

In Stock

Swanson $15.79
Retail $27.99
Save 44%
Add To Cart

500 mg 60 Veg Caps

  • 500 mg per capsule



  • Non-protein amino acid



  • Science-based nutrition


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 and a small amount of D-phenylalanine may be converted to L-phenylalanine in the body.

Why Shop Swanson® Brands?

"With my personal 100% money-back satisfaction guarantee, you have nothing to lose and great savings to gain." Lee Swanson, President of Swanson Health Products

Watch now to learn more

Product Description:

Best D-Phenylalanine

  • 500 mg per capsule



  • Non-protein amino acid



  • Science-based nutrition


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 and a small amount of D-phenylalanine may be converted to L-phenylalanine in the body.

Product Label:

Best D-Phenylalanine

Supplement Facts

Serving Size 1 capsule

Servings per container 60 servings

  Amount per serving %Daily Value
D-phenylalanine 500 mg

† Daily Value not established.

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

Suggested Adult Use: Take 1 or 2 capsules daily, between meals.

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

  • Suitable for Vegetarians.
  • CONTAINS NOTHING OTHER THAN LISTED INGREDIENTS.
  • VEGGIE CAPS.

Terms and Ingredient Definitions

Best D-Phenylalanine

Swanson $15.79
Add To Cart

Doctor's Best Best D-Phenylalanine Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

close popup
No Thanks

Your 10% Off Promo Code is on the Way! Thanks for signing up for emails.

You're now signed up to receive exclusive deals and savings opportunities!

Thanks again for connecting with us. Keep an eye on your inbox — your first coupon is on its way!

Thank You! This email address is already signed up

You are signed up for the following:

  • Offers
  • Recipes
  • E-Newsletter
  • Updates & Reminders

Thank you for your interest and be assured that you will continue to receive our emails at this address.

Look for your next communication from us within the next week.

Oops!

We are having trouble processing your request.

Our apologies!

Please try again later.

Feedback