Pure L-Tryptophan
- Pharmaceutical Quality
- No Added Fillers or Binders Only Pure L-Tryptophan
- Essential Amino Acid
- Convenient Capsule Form

Underground Labs L-Tryptophan is the single amino acid in capsule form for convenient consumption. It is known as an essential amino acid, meaning it must be consumed through either diet or supplementation and is necessary for making proteins.
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Underground Labs prioritise the use of strong, high-quality raw ingredients, setting them apart from companies that opt for cost-saving alternatives. Committed to excellence, Underground Labs believes that superior supplements begin with exceptional components. Their extensive expertise in supplement development, design, and formulation ensures that ingredients are harmoniously combined, producing products that operate at peak efficiency. They possess a deep understanding of ingredient synergy, ensuring that each supplement they produce is optimised for effectiveness.
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Underground Labs L-Tryptophan
- What is L-Tryptophan?
L-Tryptophan is an essential amino acid, which means it cannot be produced by the body and must be obtained from the diet or supplementation.
- How should I store Underground Labs L-Tryptophan?
It's best to store the product in a cool, dry place, away from direct sunlight, to preserve its shelf life.
- Can Underground Labs L-Tryptophan be taken with other supplements?
Yes it may be. Such supplements include protein powders, amino acids or many other Underground Labs supplements.
- How often should I take Underground Labs L-Tryptophan?
Adherence to the recommended dosage on the product's label is important, and for any personal adjustments, a consultation with a professional is recommended.
