In the USA Noopept is not approved by FDA to treat any medical condition it is sold and marketed as a supplement.
Although it could be available from various suppliers Noopept (R) is a registered trademark of Life Science Solutions Inc (USA) and to ensure quality it is recommended to purchase Noopept from authorized distributors only:
Amazon: Noopept powder 25 grams
TheSmartShopOnline: Noopept powder (various packaging)
Albo Chemical Company: Noopept powder 100 grams