Marketing claims of health effects are not supported by research, and the Food and Drug Administration has warned companies selling the products about false advertising.
[3][4] Typically, the antler is cut off near the base after it is about two-thirds of its potential full size, between 55 and 65 days of growth, before any significant calcification occurs.
[7][8][9] In Asia, velvet antler is dried and sold as slices, or as a powder which may be boiled in water, usually with other herbs and ingredients, and consumed as a soup.
[7] In the traditional commercial trade of Korea and China, whole stick antler velvet is divided into three sections based upon their supposed properties.
[11][12] In the West, velvet antler is dried, powdered, and consumed in encapsulated form or via aqueous alcohol extract as a dietary supplement, for which it is monitored for potential manufacturing and advertising violations by the US Food and Drug Administration[13] and the Federal Trade Commission.
Additionally stated by the FDA, velvet antler was "not generally recognized as safe and effective for the referenced conditions" and therefore must be treated as a "new drug" under Section 21(p) of the Act.
[20][21] In August 2011, the Major League Baseball (MLB) added deer antler spray to their list of prohibited items because it contains "potentially contaminated nutritional supplements.
"[22] On January 30, 2013, Vijay Singh professional PGA Tour golfer was caught unaware and openly admitted to the personal use of deer antler spray which contained a banned substance at the time.
[20] The controversy initially started on March 30, 2009, when Alabama athletic officials sent a cease-and-desist letter to the company's owner that stated: "Refrain from using current student-athletes to endorse products.