ZeinPharma L-Phenylalanine is a plant-based amino acid supplement that helps mood, focus and neurotransmitter production, provided in premium capsules and maintained by ZeinPharma's strict German standards. The key active ingredient, L-phenylalanine, supports production of dopamine and noradrenaline, helping mood and alertness. ZeinPharma Germany GmbH upholds rigid German pharmaceutical standards, with precision-controlled manufacturing and rigorous batch testing.

Available Sizes & Variants:

90 capsules – daily serving for ongoing support

Benefits & Features:

• Pure, plant-based L-phenylalanine for clean daily support.
• L-phenylalanine helps produce dopamine and noradrenaline, supporting mood and alertness.
• Manufactured in a German facility under good manufacturing practice standards using cleanroom technology to guarantee purity and batch consistency.
• Capsules use a hydroxypropylmethylcellulose shell, are free from major allergens, artificial additives, and preservatives, and are suitable for vegans and vegetarians.
• For best results, three capsules daily before meals may align with how absorption improves when timing is considered, supporting steady mood and cognitive focus throughout the day.

The ZeinPharma line is built on German quality and careful craft. The Nauheim, Germany facility uses cleanroom manufacturing, climate control and rigorous batch management to ensure consistency. Capsules are produced to pharmaceutical grade and the brand highlights that production is conducted without animal testing. Pure L-phenylalanine sits at the heart of the formula, a vegan option praised for reliable absorption. Fans of vegan nutrition often pair it with a vitamin d supplement or protein powder, with n acetylcysteine as another common companion.

L-Phenylalanine, L-Phenylalanine

• GTIN: 4260085383979
• Manufacturer: Zein Pharma
• Categories: Best SellersSubscribe & Save ProductsZein Pharma Products
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Consume 1 capsule whole 3 times a day with at least 200 ml of still water. Store in a cool, dry place away from direct sunlight. Pregnant and breastfeeding women should only consume L-phenylalanine through their normal diet. Keep out of reach of children. Do not exceed the recommended daily dosage.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: L-Phenylalanine

L-Phenylalanine is a key amino acid that helps with everyday body processes including neurotransmitter production and thyroid hormone synthesis.

This form is vegan and supplied as pure L-phenylalanine, with a vegan capsule shell, suitable for folks avoiding animal products and free from common allergens.

What Does L-Phenylalanine Do?

L-Phenylalanine helps support normal production of neurotransmitters which support brain function and mood regulation.

It also helps with overall normal physiological roles through its involvement in the body's amino acid pool, aligning with European safety guidance on essential amino acids.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Welzo picked ZeinPharma as our partner for L-Phenylalanine due to a shared dedication to accuracy, purity and ethical production. ZeinPharma Germany GmbH rests on a heritage of strict German pharmaceutical standards and runs a facility in Nauheim that stresses cleanroom manufacturing, climate control and thorough batch management. This brand is recognised for GMP-compliant production under German and EU rules, with laboratory testing of every batch to ensure purity and precise dosage. Their approach includes capsule production described as pharmaceutical-grade and free from major allergens and artificial additives, matching our quality expectations. For customers, this translates to steady product integrity and clear sourcing that supports reliable daily use. This brand was assessed by our medical team for compliance with our ingredient quality and purity standards, reinforcing the value we place on safety and reliability.