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CL Answers

Below are popular questions answered by ConsumerLab.com

How can I avoid aconite – a toxin – in Aconitum supplements?

Aconite is a highly toxic alkaloid found in Aconitum plants ( also called monkshood, wolfsbane, or devil's hood). Aconite poisoning can cause low blood pressure, chest pain, increased or decreased heart rate, and irregular heart rhythm that can lead to cardiac arrest and death. Find out which supplements may contain aconite and how to avoid it.

Risks of Too Many Vitamins & Supplements

Taking too many vitamin supplements -- or taking too much of a particular supplement -- can have short and long-term adverse effects.

Contamination of Dry Shampoos with Benzene — What You Need to Know

Benzene, a carcinogen, has been detected in several dry shampoo aerosol sprays. Find out which dry shampoos were found to contain benzene and how much was in each one, plus how tips for reducing your exposure to benzene.

Can zuPOO and its primary ingredient, cascara sagrada, cleanse the gut, improve digestion and help with weight management?

zuPOO is marketed for gut support and as a colon cleanser for weight management. Find out if research supports these claims and if ingredients in zuPOO are safe.

zuPOO supplement bottle with white background

10 Supplements That May Boost Testosterone (And 13 That May Not)

Many supplements promise to increase testestorone, boost libido, and increase muscle size, but, as ConsumerLab explains, the actual effectiveness of supplements is limited, and some supplements may actually reduce testosterone levels.

Chalkboard sign that says low testosterone sitting on a table in front of a book and supplements

Can any supplements reverse gray hair?

Nearly 75% of adults aged 45 to 65 are affected by gray hair. Learn about what causes gray hair and find out if any supplements can help.

A young woman shows gray hair on her head on a white background

Should you take olive oil as a supplement?

Although extra virgin olive oil has many possible health benefits, such as reduced risk of heart disease and improved blood sugar control, these and other benefits have been demonstrated when olive oil replaces for saturated fats in the diet, not when taken as a supplement, as we explain.

Olive oil being poured into a spoon being held over a bowl

10 Supplements That May Help Reduce Nighttime Urination (And 5 That May Not)

Waking up more than once during the night to use the bathroom? Learn more about the 9 supplements that may help and 5 others that don't.

How does Athletic Greens’ AG1 compare to multivitamins and Greens powders? Is AG1 worth it?

ConsumerLab reviews the ingredients in AG1, its safety and possible side effects, and how AG1 compares to other products.

7 Tips to Avoid Getting a Pill Stuck in Your Throat

Some pills can be difficult to swallow and can even become lodged in the throat or cause damage to the esophagus. Learn seven practical tips to help avoid getting pills stuck in the throat.