Not for use by individuals under the age of 20 years. Do not use if pregnant, nursing, or trying to conceive. This product is not a training aid. Use of this product as a training aid, especially in younger individuals, may result in adverse health effects and will not benefit strength training. Consult a physician or licensed qualified health care consultant before using this product if you have, or have a family history of, a hormonally related cancer (such as breast or prostate cancer), prostate enlargement, heart disease, low "good" cholesterol (HDL), or if you are using any other dietary supplement, prescription drug, or over-the counter drug. Do not exceed recommended serving. Exceeding recommended serving may cause adverse health effects. Possible side effects include acne, hair loss, facial hair growth in women, aggressiveness, irritability, and increased levels of estrogen. Discontinue use and call a physician or licensed qualified health care professional immediately if you experience rapid heartbeat, dizziness, blurred vision, or other similar symptoms. Keep out of reach of children.