Auctua Synthol Professional Series is Genuine Synthol that is pure pharmaceutical grade INGREDIENTS: Caprillic Acid, Capric Acid, Caproic Acid, Lauric Acid, Benzyl Alcohol - in a sterile solution, of pharmaceutical quality and purity. Sizes 100ml Vial, 50 ml Vial or 30ml Vial all are multi use. Auctua Professional Series is for professionals as the name suggests, Auctua Synthol was designed for professional bodybuilders in mind that do not want a synthol look but rather to enhance muscle features for competitions. When used correctly muscles will appear fuller and more vascular and most importantly larger in volume. Bodybuilders have noted that when the product is used in 2-3ml applications every other day results are noticeable. Gains of inches are indeed possible but this is only with strict and long term use allowing the muscle fascia where stretched to grow new fibres into the gaps created. When is inch not an INCH??? When using synthol please be realistic with your goals, A seasoned bodybuilder that weighs 250 lbs is not the same as a 150lb beginner, they are neither the same in development, strength or size. For example if the seasoned bodybuilder has 21â€Â arms and the beginner has 15â€Â arms, an inch to the developed bodybuilder would be easier to attain than an inch to the beginnerâ€¦ Why you may ask? 1â€Â to a 21â€Â arm is 1/21 of size whereas the beginner is 1/15 of size, taking the increase in volume to account this would equate to roughly 4% for the seasoned bodybuilder but to the beginner 7%... This is nearly double, so in this circumstance of an inch is not an inch!!! you need to consider the volume as well as size that you want to achieve. Properties of Auctua Professional, Duration: 7-10 days after last application. Viscosity: Low INGREDIENTS: Caprillic Acid, Capric Acid, Caproic Acid, Lauric Acid, Benzyl Alcohol - in a sterile solution, of pharmaceutical quality and purity.