L-Serine capsules, labeled in part as "Healthy Life Chemistry" By Purity First, Est. 1991, packaged in white bottles (100 capsules per bottle) with black font with a Ying & Yang symbol, Manufactured for: Purity First Health Products, Inc. Healthy Life Chemistry 51 Florida Street, Farmingdale, NY 11735 1-800-696-7017.
The dietary supplements have the potential to be contaminated with undeclared steroids, pharmaceutical ingredients and/or chemical additives due to lack of GMPs.
GA, FL, NC, possibly NJ and New Zealand
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=F-1287-2014