*Results May Vary

Formula 303 Maximum Strength Relaxant

Dee Cee Laboratories was founded in 1962 and manufactures vitamins and minerals that support a healthy lifestyle for the consumer. Perhaps their most popular product, Formula 303, is a gluten-free and non-GMO natural muscle relaxant and stress reliever that combines three main ingredients to provide maximum relief.


Formula 303 contains a powerful formula consisting of valerian root, passionflower, and magnesium.

Valerian root is an herb native to Europe and regions of Asia that can be used to help reduce the effects of insomnia. In addition to being found in capsule form, valerian can be consumed as tea. Dating back to the 16th century, valerian was used to help those suffering from headaches and severe stress1. In Formula 303, the root acts to relax the body and aid in pain relief. It also supplies Formula 303’s distinct odor. 

Passionflower is a vine that is found from South America to the southeast of the United States. In the 1500s, Spaniards brought the flower back to Europe where it was used in medical treatments. More recently, it has been proposed that passionflower may positively impact those experiencing anxiety and insomnia2. Some experts also theorize that it possesses anti-inflammatory properties and that it increases gamma-aminobutyric (GABA) levels in the brain, which may help relax the individual.

Magnesium, a crucial mineral, is the third ingredient in Formula 303. If one consumes insufficient magnesium, he or she may experience fatigue and headaches. In addition, the mineral is responsible for important bodily functions, including the regulation of muscle and nerve function and blood pressure3. In Formula 303, magnesium may work to reduce stress and relax nerve cells, which in turn calms muscles.

What it does

In addition to relaxing muscles, Formula 303 may provide relief for the following:

  • Joint and muscle pain
  • Muscle spasms
  • Backaches
  • Leg cramps
  • Pulled muscles
  • Neck and shoulder pain
  • Stress

What the consumer thinks

Just on EarthTurns.com alone, over a thousand people have proclaimed their love for Formula 303. Customers have reported that Formula 303 helped with sciatica and back pain and muscle spasms. They also value the lack of ‘loopy feeling’ that is caused by prescription muscle relaxers. In addition to these benefits, consumers claim that Formula 303 has reduced the consequences of restless leg syndrome. See for yourself, check out the customer reviews on EarthTurns.com.

  1. U.S. Department of Health and Human Services. (2013, March 15). Valerian. NIH Office of Dietary Supplements. https://ods.od.nih.gov/factsheets/Valerian-HealthProfessional/.
  2. U.S. Department of Health and Human Services. (2020, August). Passionflower. National Center for Complementary and Integrative Health. https://www.nccih.nih.gov/health/passionflower.
  3. U.S. Department of Health and Human Services. (2021, March 22). Magnesium. NIH Office of Dietary Supplements. https://ods.od.nih.gov/factsheets/Magnesium-Consumer/.

* The Food and Drug Administration has not evaluated any statements on this website. Dietary supplement products are not intended to diagnose, treat, cure, or prevent any disease.


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