Jarrot Sierra Magnetic Store, Inc. is a new company founded in 2004. Our head office and distribution center is located at 1654 Santa Agueda St.., San Juan, Puerto Rico, 00926. This location handles our P.R., Caribbean and US shipments.

Our company is committed to sell and distribute the finest quality magnetic products for health. Our company has been founded in honor of Dr. Ralph U. Sierra, the father of Biomagnetism in the Island of Puerto Rico. His daughter Dr. Irma I. Sierra felt the need to inform the public that his knowledge and research were in fact ahead of time. Today, magnets are used more freely that when he started back in the late 1960’s and are even manufactured with his specifications. As a direct result of his studies and promise to continue his work, we have decided to establish this company, so that his name will be known to future generations. It must be added that the numerous benefits with magnets experienced personally through most of her lifetime, her family and patients were also another inspiration.

The magnets have been in the Sierra Family for over 35 year, and in the Jarrot Sierra Family and Dr’s I. Sierra’s patient almost 20 years. Back in 1967, Dr. Ralph U. Sierra suffered from Menniere’s Syndrome. After visiting innumerable specialists with no cure and feeling worse, a friend of him told him about a Doctor in India who worked with magnets. Dr. A. K. Bhattacharya answered him by return mail to consult Albert Roy Davis in Florida because of the distance, and so he did. We are grateful for Dr. Davis changing Dr. Sierra’s life and teaching him about Biomagnetics. With the magnets he bought he began to bo research. His studies and experiments of Biomagnetism began and in 1969 he started the Puerto Rico Scientific Research Laboratory, Inc. Doctors and scientists from all over the world visited his laboratory and exchanged knowledge. His famous knee, back and neck bands are still used. We even have the magnetic chair at the Clinic waiting room. Up to this day we are still receiving mail for him or the lab. Dr. Ralph U. Sierra left us with 2 books: Power in the Magnet, and Energía Magnetica, both of which will be available for sale. Dr. I. Sierra grew up in the magnets environment, her father’s lab. Was above where she lived, so she was surrounded with magnets. To this day she recalls her first and last ear-ache, her father gives her a magnet to hold in one hand and a carbon rod in the other. For some reason the pain increased and then suddenly disappeared. She was raised to use magnets for everything, so when she became a Chiropractor she followed her father’s steps and applied the knowledge to her patients, her family and now she wants to help others improve their lifestyles.

Our primary focus is to offer a drugless healing / pain treatment alternative that you can do at home. Magnets have an invisible force that appeal to millions of people throughout the world. Our company is constantly searching for magnetic product, with the Dr. Ralph’s Sierra North Pole specifications that will meet the highest standards of quality and effectiveness. We supply both the general public and health care professionals.