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Brand: Allergy Research Group


  • Provides GABA and L-theanine along with 5-Hydroxytryptophan and vitamin B6 as Pyridoxial-5-Phosphate
  • Provides key nutrients for the production of melatonin in the body, to support sleep and relaxation*
  • Suggested Use: Take 2 capsules 30 minutes before bedtime, or as directed
  • Free of wheat and gluten, dairy, eggs, soy, fish, shellfish, peanuts, tree nuts, corn, and yeast
  • Since 1979 Allergy Research Group has committed to using pure and low allergy potential ingredients

Details: Zen Sleep starts with the foundation ingredients of our original product 200 mg of Zen, GABA (gamma-aminobutyric acid), and L-theanine (glutamic acid gamma-ethylamide), an amino acid derivative found naturally in green tea (Camellia sinensis). Added to them are P5P (pyridoxal-5-phosphate), which is the coenzyme form of vitamin B6, and 5-HTP (L-5-hydroxytryptophan), the precursor to serotonin and melatonin. This combination helps promote a relaxed state, and provides the necessary factors for the body to produce melatonin, supporting normal, healthy sleep.*

Since 1979, Allergy Research Group has used only the purest, and whenever possible, lowest allergy potential natural ingredients available. Many very sensitive individuals who react to supplements in general can tolerate Allergy Research Group products. Strict quality control procedures are followed in every stage of production, including inspection, manufacturing, packaging, and storing. Allergy Research Group fully discloses all active and inactive ingredients on every product label, allowing you to make informed choices for your nutritional support. Physicians and healthcare practitioners around the world depend on Allergy Research Group for their patients' nutritional support. This brand originated with the ground-breaking oxidant/antioxidant work of Stephen Levine, Ph.D., as one of the first to introduce truly hypoallergenic nutritional supplements in the United States.

EAN: 0713947773608

Package Dimensions: 3.4 x 2.0 x 1.3 inches

Customer Reviews

Based on 58 reviews
Works well!

Sleep Works well Pleasant dreams

B Moseley
Causes muscle cramps due to Stevia

I really wanted to like this. The flavor is OK and not completely unbearable, but I noticed that I was developing bad leg cramps every evening. The only thing that I changed in my diet was this. I looked into the sweetener and realize that it was Stevia. Ive never been able to tolerate sweeteners, and Stevia is no exception sadly.

Wow NO
Same day relief

Ohh man. Im not good at sleeping. Not ever. These help a little. I also bought some B6 dissolving lozenges. I still wake up around 2 but dont stay awake as long.

Doesn't work for me after 3 months

It really helped me get to sleep for a while. Never helped with waking up several times a night. Now it isn't helping me get to sleep, either. Going to take a break, maybe try next month.

Good product poor taste

This stuff may be good for you but is difficult getting use to the taste!