11 Feb 2019 --- Sabinsa’s Shagandha Ashwagandha Root Extract 2.5 percent from Withania somnifera has been found to comply with the US Pharmacopoeia-National Formulary (USP-NF) monograph, confirming its authenticity. The company chose botanical specialist Alkemist Labs to test the ingredient. Ashwagandha’s growing popularity makes caution in sourcing crucial to guard against the adulteration that often follows rapid growth in demand for a herb, according to Sabinsa Founder Dr. Muhammed Majeed.