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Pure Encapsulations DL-Phenylalanine

DL-Phenylalanine

90A
Grade A · capsule · 90 servings · $63.50
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Scored by the Formulate Research Team · Last reviewed July 2026

Score Breakdown

Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.

Evidence Qualityweight 40%
85/ 100
Dose Adequacyweight 35%
95/ 100
Form/Bioavailabilityweight 25%
90/ 100
Transparencyweight 0%
100/ 100
Safety/Redundancyweight 0%
100/ 100
Manufacturing Qualityweight 0%
84/ 100

Ingredients per Serving

IngredientAmount
DL-Phenylalanine1000 mg

Certifications & Testing

Dairy-FreeGluten-FreeNon-GMOSoy-FreeVeganVegetariancGMP CertifiedThird-Party Tested

Other Ingredients

Vegetarian Capsule, Ascorbyl Palmitate

Recommended Use

Recommendations: As a dietary supplement, take 2 capsules, 2–3 times daily, between meals.

Warnings

Warning: If you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use. Phenylketonurics: Contains Phenylalanine. Keep out of the reach of children. Use only if safety seal is intact.

Frequently Asked Questions

What is Pure Encapsulations DL-Phenylalanine's Formulate score?

Pure Encapsulations DL-Phenylalanine scores 90 out of 100 (grade A) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.

Is Pure Encapsulations DL-Phenylalanine worth it?

Pure Encapsulations DL-Phenylalanine scores 90/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.

What's in Pure Encapsulations DL-Phenylalanine?

Each serving contains DL-Phenylalanine (1000 mg). Serving size: 2 Capsule(s). 90 servings per container.

How do I take dl-phenylalanine?

Recommendations: As a dietary supplement, take 2 capsules, 2–3 times daily, between meals.

Who makes DL-Phenylalanine?

DL-Phenylalanine is made by Pure Encapsulations. See Formulate's full grade and product lineup for Pure Encapsulations on its brand page.

Is Pure Encapsulations DL-Phenylalanine third-party tested?

Pure Encapsulations lists the following certifications and testing for this product: Dairy-Free, Gluten-Free, Non-GMO, Soy-Free, Vegan, Vegetarian, cGMP Certified, Third-Party Tested.

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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.