The Bottom Line

Jarrow Formulas has been manufacturing high-quality, effective, and safe supplements for decades. That trend continues with Jarrow Formulas Neuro Optimizer.

Jarrow Formulas' safety reputation is stellar. They use a state-of-the-art cGMP facility for production and third-party labs that are USDA- and ISO-accredited to test quality, potency, and purity. Optimizer contains 7 neuro-nutrients and protectants. It is free of gluten, dairy, and eggs.

Based on the ingredients, which include L-glutamine, citicoline, and taurine, as well as customer reviews, it is highly likely this supplement will be effective.

Many customers have nothing but good things to say about Optimizer. They often point out “they work quickly” and result in a “big improvement in concentration, memory, and function.” Others report they are “calm, cool, and focused” and have definitely experienced enhanced mental clarity and memory.” Several customers state they have been taking this supplement for years.

There are a small number of reviewers who report “no discernible effects.” There are also a few complaints of side effects, particularly headaches.

Neuro Optimizer includes ingredients that have been shown to provide cognitive enhancing benefits, while avoiding the use of any stimulants. Customers speak highly about it and its affordable. All-in-all, it's easy to see why this choice tops our list.*

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

The Bottom Line

All of the ingredients in OptiMind's Nootropic Brain Booster supplement have been deemed safe and beneficial for brain health. All OptiMind products are manufactured in a cGMP facility that is also FDA approved. According to the company, they only use high-quality ingredients.

OptiMind offers a 100% free trial through their website, allowing you to try it out before making a purchase. (However, you do have to enter your credit card information.) They also offer a 100% satisfaction guarantee.

According to the label, you won’t experience the long-term benefits, which includes improved cognitive function and enhanced memory, until you have been taking the supplement regularly for as long as 12 weeks.

Customers are pretty divided when it comes to OptiMind. While some report that it is “better than a prescription when it comes to my concentration, alertness, focus, and productivity,” others report an overall ineffectiveness.*

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

The Bottom Line

Pure Essence Labs has established a reputation for manufacturing top-quality, safe supplements. Brain Essence is free of sugar, soy, yeast, dairy, gluten, nuts, shellfish, and GMO. It is a vegetarian supplement.

Brain Essence consists of eight ingredients, including ashwagandha (decreases the effects of chronic stress that damages neurons), rhodiola, and acetyl-L-carnitine. All of these ingredients have been proven to benefit memory, cognition, and clarity in various scientific studies.

Around ¾ of customers report being extremely satisfied with Brain Essence, referring to it as a “great product” that has “sharpened my memory.” Several report “quicker recall of details and memory.” However, there are multiple customers who admit to experiencing GI distress, specifically nausea, diarrhea, and abdominal cramping, when taking the supplement. Some reviewers did say that these side effects lessened over time.*

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

The Bottom Line

According to statistics made available by the manufacturer, RISE by Nootrobox will raise your verbal learning rate by 12.28% and your inspection time by 17.67%, while reducing your anxiety 33.3% and your mental fatigue by 3.43%.

Nootropox also reports that the amount, concentration, and ratio of each ingredient, including bacopa and rhodiola, have been drawn from double-blind, peer-reviewed journal studies to ensure effectiveness and safety. All supplements are GMP and FDA compliant.

Around half of the customers who have reviewed RISE report that it is absolutely fantastic, resulting in “an overall improvement in mental wellness, reduced stress, and an amazing night of sleep.” One customer stated it gave her the same mental focus as when “I used to take medication for ADD, but without the jitteriness.” Others report a more neutral experience, stating “it doesn’t seem to offer any benefit or difference in energy, sharpness, etc.”*

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

The Bottom Line

Made entirely from "earth-grown nutrients," Alpha Brain by Onnit is certified drug-free by the Banned Substances Control Group, a leader in third-party dietary supplement certification and testing. The vegetarian capsules are non-GMO and free of caffeine. To make a long story short, you can rest assured this is a safe supplement.

Despite being an Amazon best seller, only 66% of customers give it a ranking of three stars or higher. Those who do “absolutely swear by it.” They report “improved memory and focus," appreciate how it "makes it easier to come up with the right words, and feeling really productive.”

Others report they “felt nothing (either positive or negative).” A few referred to it as “completely ineffective” and others reported side effects, such as upset stomach and “just feeling strange.”

The manufacturer reports that this is one of just a few nootropics to have undergone rigorous clinical testing and has been shown to boost clarity, memory, and focus. In a study completed at the Boston Center for Memory, benefits were seen after just a single dose. (6) With that being said, you still have to factor in that quite a few reviewers report it had “no effect whatsoever, even after taking it for a month.”*

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.