Quick Answer
Use iHerb discount code KHQ339 at checkout.
Dietary SupplementDL-PhenylalanineSupports An Alert StateDL-Phenylalanine or DLPA May support healthy levels of endorphins and enkephalins compounds naturally produced by the body that have a positive effect on comfort levels. Research suggests that DLPA helps regulate the enzyme action the body uses to break these compounds down which may extend their use by the body. L-Phenylalanine is also a precursor to the mood-related neurotransmitter dopamine.