I recently had to relist this because of a computer glitch with eBay and change the title slightly to avoid a policy violation, I have been using this secret formula for 20 years after tweeking and adjusting it for 15 years before that. Thirty five years ago, I graduated from College with an Animal Nutrition  degree and then went on to graduate school. Using my college training and my experience as a deer hunter for 20 years before that; I worked on a formula that really works. It can not be mass produced therefore it will not be sold or manufactured by the "big companies". It's a concentrate to be added to salt, which deer love and seek. In addition I have added two known classic deer attractants to get deer started fast using the lick. Each packet is enough to treat 20# or more of white livestock salt; do not use trace mineral or yellow salt. Packets can be split into two portions and add each portion with 10# of salt to make smaller licks. All the deer pictured have had access to this supplement most or all of their lives and you can see what it has helped them become.The oldest deer in any of these pictures is only 4 years old! I also recommend establishing a station for every 25-35 acres of hunting area and recharging each lick every 3 months or sooner if needed. Most “supplements" are either gimmicks or lures called supplements to get around game laws. Many of the similar products are 80% to 90% salt and that is an expensive way to buy minerals. Salt is cheap and heavy so it cost to ship also. You can buy salt as cheaply as I can so I'm not taking advantage of you for expensive salt!! My supplement is designed to improve and benefit the entire herd because half of every buck comes from the doe side and healthier yearlings make better mature bucks . Nutrition is the way to assure that your bucks are the best they can be, but no additive is going to make trophies if all factors are not present.  Comes with complete instructions and tips. THIS SUPPLEMENT CONCENTRATE HAS NO SALT AND NO SELENIUM!! THERE ARE AREAS OF THE COUNTRY WHERE PUTTING SELENIUM OUT ON THE GROUND IS ILLEGAL  BECAUSE OF GROUND WATER CONTAMINATION. CHECK THE LABEL ON THOSE NATIONAL BRANDS AND UNDER INGREDIENTS YOU WILL FIND SALT AND SELENIUM AS INGREDIENTS, MOST LIKELY. DEER GET ENOUGH SELENIUM FROM THE FORAGE, BROWSE AND DIRT THAT THEY EAT.