Mix 1 scoop of Dr. Jekyll® Stimulant-Free with 8 oz of cold water. Consume 15 to 30 minutes before exercise. If you decide to stack with another pre-workout, such as Mr. Hyde®, assess your tolerance with 1/2 scoop of each before proceeding to a full serving. Shake container well before use.

Some users may experience a warming sensation and increased sweating after use. This is attributed to Aframomum melegueta. 

Do not use if you are pregnant, nursing or if you are under the age of 18. Do not take this product if you have or suspect you may have a medical condition or if you are taking any prescription or over-the-counter medications. Consult a licensed qualified healthcare professional before using this or any other dietary supplement, especially if you have a medical condition, or a family history of medical problems including but not limited to heart disease, thyroid disease, diabetes, high blood pressure, depression or other psychiatric condition, glaucoma, difficulty in urinating, prostate enlargement, or seizure disorder. Do not exceed recommended serving. Immediately discontinue and consult a licensed qualified medical professional if you experience any adverse effects. Keep out of reach of children. 

For California residents: Consuming this product can expose you to lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. Prop 65.

Store in a cool, dry place. Content sold by weight not volume, some settling may occur. Protect from heat, light and moisture.

While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.