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L-Phenylalanine

Found in 155 products 5 forms available
Mood Support Brain Cognitive Function Energy Support

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L-Phenylalanine
Supplement Guide Emerging evidence

L-Phenylalanine

A mother waits outside a lab in 1934, pleading for answers about the strange, musty smell in her children's urine. Decades later, a dermatologist times a UV...

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Understanding L-Phenylalanine

Reported benefits
→Supports a balanced mood and emotional well-being
→Promotes mental focus and cognitive sharpness
→Supports daytime energy and motivation

Dosage Guide

50mg
Low
200mg
Standard
200mg
Therapeutic

• Most products contain 50-200mg

• Therapeutic dose: 200-200mg

Forms & Absorption

L-Phenylalanine
Standard form
810 products
Phenylalanine
Standard form
205 products
L-Phenylalanine; Micronized
Standard form
99 products
Phenylalanine; Micronized
Standard form
5 products
L-Phenylalanine; Powder
Standard form
3 products

Timing & Usage

Best taken:Empty stomach
With food:Most products don't specify - either is typically fine
Spacing:2+ hours from other minerals if applicable

Works Well With

L-Leucine 1,497 products L-Lysine 1,395 products L-Isoleucine 1,253 products

Top Products

L-Phenylalanine 500 mg

L-Phenylalanine 500 mg

Source Naturals • Tablet or Pill

$9.68
3.9★ 35 Amazon reviews
OptimalAmino Berry Lemonade

OptimalAmino Berry Lemonade

Optimal Labs • Powder

$123.00
5.0★ 3 Amazon reviews

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This content is for informational purposes only and is not medical advice. Always consult healthcare providers before starting supplements. We cite research but errors may exist. Report an error. Our Amazon links are affiliate links - any purchases help us keep bringing you free research and tools. Commissions never influence our analysis. Questions or suggestions? suplmnt@suplmnt.app.