Knock-Out® contains the following ingredients within its formulation: Vitamin B6, Calcium, Magnesium, Melatonin, Glycine, L-Theanine, Valerian Extract, GABA and other filler ingredients listed online.

As evident from above, this product contains some essential vitamins and minerals that may provide various benefits to the body. However, the manufacturer says the three key ingredients are Melatonin, L-Theanine and Valerian.

Melatonin is contained in a number of sleep aids since it is said to deepen sleep yet not have any negative side effects, while Valerian and Theanine are said to provide users with calming effects. Though, we are not as impressed with this particular combination as is the manufacturer. We do appreciate the capabilities of Melatonin, but believe this ingredient’s benefits may be further exemplified in a more comprehensive formulation.

To be specific, there are now supplements available that contain patented ingredients which break down toxins and stimulants, which may disrupt sleeping patterns. A product that pairs such an ingredient with Melatonin may present the most powerful formulation obtainable.

Schiff, the manufacturer, does post an accessible website online for their consumers. Though, beyond a brief product description the company does not post much useful information. There is no cited research to show that this supplement has been tested for both safety and effectiveness. In addition, there are no testimonials from past consumers to show that this product has worked before. We would find it additionally helpful to see if this product causes drowsiness during the day, which is something that is often shared in testimonials.

We were also disappointed to note that there is no money-back guarantee offered with purchase of Knock-Out®. Money-back guarantees are indicative of a company’s trust in their product’s abilities. We are always hesitant to recommend a supplement that does not come with a guarantee.

• Contains Melatonin
• Accessible company website online

• No patented ingredients in the formulation
• No cited research online
• Testimonials are not posted on company website
• Manufacturer makes additional sleep aid supplements
• No money-back guarantee offered to consumers

Ultimately, Knock-Out® may attract a number of consumers due to its cutesy name. Also, since it is said to contain Melatonin this supplement does have some sleeping aid benefits. Though, in the end consumers who feel that cited research, testimonials and money-back guarantees are reflective of a high-quality formulation, may want to look at other options on the market.

Unfortunately, this product is not sold on the official company site. Though, the company does provide a list of available retailers. Consumers who are able to find this product for purchase may not have a money-back guarantee, as mentioned, however it is moderately priced and sells for around $20 a bottle.