Nerv+ Liquid Zen: Reviewing Nerv Plus Liquid Zen Drink Shots

Nerv+ Liquid Zen (Nerv Plus) shots are a natural stress relief drink supplement featuring a proprietary pherelax formula of L-Theanine & B Vitamins to alleviate anxiety, boost energy and calm the nerves.

Full Disclosure

Liquid Zen is a nutritional supplement that claims to offer natural stress relief.

By drinking a shot of Liquid Zen daily, you can purportedly manage stress, improve focus, and relieve anxiety, among other benefits.

How does Liquid Zen work? What’s inside the Liquid Zen formula? Should you take Liquid Zen daily? Find out everything you need to know about this nutritional supplement today in our review.


What is Liquid Zen?

Liquid Zen is a liquid nutritional supplement found online at The supplement comes in a shot bottle – similar to a shot-based energy drink.

You drink one shot to relieve stress and anxiety on-the-go. The supplement contains ingredients like L-theanine, green tea, and B vitamins.

The manufacturer, Nerv, claims the formula lasts up to 10 hours per shot with no energy drink-style crash. It doesn’t contain caffeine or other stimulants, so you don’t get the same type of crash.

You can buy Nerv Shots, also known as Liquid Zen shots, online through or through online retailers like Amazon or offline retailers like 7-Eleven and CVS. Nerv currently offers just two shots, including Liquid Zen and a CBD shot, although they plan to launch more shots in the near future.

Each shot is priced around $5, although you can save money by ordering boxes of Liquid Zen shots in 6-pack to 72-pack options.

How Does Liquid Zen Work?

The goal of Liquid Zen is to reduce anxiety, refocus your mind, and help you manage stress. You drink one shot on-the-go to support advertised benefits.

Nerv+ claims Liquid Zen provides all of the following benefits:

  • Natural stress relief
  • Keep calm
  • Fight anxiety
  • Refocus
  • Destress

To achieve these benefits, Liquid Zen contains a hefty dose of B vitamins and L-theanine. The formula contains significant doses of vitamin B1 (thiamin), vitamin B3 (niacin), and vitamin B6. Many energy drinks contain similarly high doses of these B vitamins because they’re linked with energy. Your body needs vitamins B1, B3, and B6 for cellular energy and other functions. By giving your body a strong dose of these ingredients, you may be able to rejuvenate your body without using stimulants like caffeine.

Liquid Zen also contains a significant dose (495mg) of L-theanine. L-theanine is a natural chemical compound in green tea. Studies show that a combination of L-theanine and caffeine could nullify the unwanted side effects of caffeine – like jitters and anxiety. L-theanine may have anxiolytic (anxiety-reducing) properties, and some people take L-theanine daily to support stress and anxiety.

Each shot of Liquid Zen contains six calories and 0g of sugar. The formula is flavored and sweetened using natural citrus flavors, lemon balm extract, and stevia.

Liquid Zen Ingredients

Nerv+ publishes its full list of ingredients upfront, making it easy to compare Liquid Zen with other shot-based beverages available today.

Liquid Zen contains all of the following ingredients:

  • 10mg (833% DV) of thiamin (vitamin B1)
  • 30mg (188% DV) of niacin (vitamin B3)
  • 40mg (2,353% DV) of vitamin B6
  • 50mg (12% DV) of magnesium
  • 495mg of L-theanine

Liquid Zen binds these ingredients in a liquid formula with filtered water, citric acid, phosphoric acid, stevia, natural citrus flavor, potassium citrate, potassium sorbate, sodium benzoate, sodium chloride, and lemon balm extract.

Scientific Evidence for Liquid Zen

It’s no secret that B-vitamins can energize your body, and many take L-theanine daily for anti-anxiety benefits. Liquid Zen seems to contain a strong dose of three B vitamins and L-theanine. Let’s look at the scientific evidence.

As explains, researchers have studied single doses of L-theanine at around 100mg to 200mg per day. At this dosage, L-theanine has been shown to support cognitive function.

Many people also take L-theanine with caffeine. In fact, L-theanine and caffeine is one of the most popular nootropic stacks. Typically, people take a dose of 30 to 100mg of caffeine with 12 to 50mg of L-theanine, although you can adjust the dose as needed. Many people like L-theanine because it nullifies certain unwanted side effects of caffeine, including jitters and anxiety. You get the energy boost of caffeine without the side effects.

Liquid Zen specifically claims to help your body manage stress. L-theanine has been shown to reduce stress in multiple studies.

In this 2019 study published in Nutrients, for example, researchers found that L-theanine could improve stress-related symptoms and cognitive function in healthy adults. Researchers gave 30 individuals between ages 36 and 61 200mg of L-theanine per day or placebo tablets. After four weeks of taking L-theanine, researchers observed better stress-related symptoms and cognitive functions in the L-theanine group. This was a randomized, placebo-controlled, crossover, double-blind trial.

Similarly, this 2016 study published in Nutrients connected L-theanine to anti-stress and behavioral effects. In that study, researchers analyzed the effects of an L-theanine-based beverage. Thirty-four healthy adults between ages 18 and 40 consumed the beverage or a placebo, then took a stress test. Participants in the L-theanine group had better stress markers than a placebo group.

B vitamins have been shown to boost energy in multiple studies. Instead of summarizing every individual study on B vitamins, we’ll cite this page from the UC Berkeley School of Public Health. That page claims B vitamins can boost energy – but only if you aren’t currently getting enough B vitamins. If you already get sufficient B vitamins (say, through your ordinary diet), then B vitamins are unlikely to have a significant effect. In fact, your body passes any unnecessary B vitamins out of your body via urine.

That page explains that many people experience a boost from the B vitamins in energy drinks because of the “placebo effect” – it’s more likely that the sugar or caffeine in the energy drink is impacting your energy levels instead of the B vitamins.

If you have a balanced diet, then B vitamins are less important. However, if you don’t have a diet rich in fruits and vegetables, then you may not be getting enough B vitamins, in which case the B vitamins in Liquid Zen could be more important.

Liquid Zen Pricing

Liquid Zen is available online through, where you can buy anything from a 6-pack to a 72-pack. In stores, you can also find individual shots for around $5. Here’s how pricing breaks down:

  • 1 Shot: $4.99
  • 6-Pack: $29.94
  • 12-Pack: $59.88
  • 24-Pack: $119.76
  • 48-Pack: $239.52
  • 72-Pack: $360

As part of a 2020 promotion, Nerv is selling its 72-pack for just $239.99. Essentially, you can buy a 48 pack of Liquid Zen and get 24 bottles for free.

You can also buy Liquid Zen supplements in stores across the United States and online. Liquid Zen is available through Amazon and other online retailers, for example. It’s also available at 7-Eleven, CVS, and other brick-and-mortar retailers.

About Nerv

Liquid Zen is made by a supplement company named Nerv+, also known simply as Nerv. Key members of the Nerv+ team include Dr. Michael Jiang (Co-Founder & Chief Scientist), Kevin Kim (CEO), Raghu Mummadi (Chief of Technology, and Holly Ash (Co-Founder & Advisor).

Nerv was seed-funded by Lab25, an early-stage investor. The company launched on Indiegogo with two Nerv shots.

In addition to selling Liquid Zen shots, the company sells Nerv+ CBD shots. The company is also preparing to launch Nerv+ Passion, Trim, Focus, Joy, and Dream shots in the near future, along with a variety pack containing all seven shots from the company.

You can contact Nerv via the following:

Email: [email protected]

Nerve is based in Phoenix, Arizona. The company was founded in 2015.

Final Word

Nerv offers a range of liquid shot supplements, including an anti-anxiety, stress-reducing shot called Liquid Zen. The shot contains high doses of B vitamins and L-theanine. L-theanine has been linked with powerful anti-anxiety benefits at doses of 100mg to 200mg per day, and Nerv Liquid Zen contains 495mg of L-theanine per shot.

Based on the advertised ingredients, Nerv Liquid Zen should reduce anxiety and stress in multiple ways while also supporting energy and focus. By taking a shot daily, you could enjoy various benefits.

Nerv Liquid Zen is available through, CVS, 7-Eleven, and Amazon, among other retailers.

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