NOW Foods L-Tyrosine

 

NOW L-Arginine
NOW L-Arginine2
  • Sourcing – Animal – from feathers and human hair.
  • Label Transparency – No sourcing, certification or manufacturing detail; states “Veg Capsules” which are a clear capsule made from plant-derived materials (no gelatin); also contains stearic acid from plant sources.
  • Manufacturing Process – Hydrolysis.
  • Lab Testing – This product is pharmaceutical grade, which means that the ingredients are over 99% in purity and contain no unknown additives. This certification requires stringent testing and conforms with best practices.
  • Certifications – Non-GMO according to the customer service representative.

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