What are OPCs? The formula for DNA Miracles™ OPC-3 ® Chews includes some of the most powerful bioflavonoids – biologically-active members of plant-derived compounds – currently known to research scientists. These bioflavonoids are scientifically termed oligomeric proanthocyanidins , commonly abbreviated OPCs. The purest and best-researched OPCs include grape seed, red wine, grape skin, bilberries, citrus fruit, and pine bark extract, or Pycnogenol ®† .* Are DNA Miracles OPC-3 Chews safe? Yes. OPCs are among the most valuable constituents of a healthy human diet. OPCs have been researched and used for over 30 years throughout Europe. DNA Miracles OPC-3 Chews are free of harmful chemicals, preservatives and alcohol.* Are there any allergens in DNA Miracles OPC-3 Chews? DNA Miracles OPC-3 Chews is a vegetarian product and contains no wheat, yeast, gluten, artificial flavors, starch, salt, preservatives or milk. What is the serving size for DNA Miracles OPC-3 Chews? Consume one (1) chew daily or as directed by your healthcare provider. Can my children take DNA Miracles OPC-3 Chews in addition to other DNA Miracles products? An assortment of DNA Miracles products – DNA Miracles Chewable Probiotics, DNA Miracles Essential Omega 3, DNA Miracles Isotonix Digestive Enzymes, and DNA Miracles Isotonix Multivitamin or DNA Miracles Isotonix Multivitamin Plus – can be taken in addition to DNA Miracles OPC-3 Chews. Can adults take DNA Miracles OPC-3 Chews? Yes! DNA Miracles OPC-3 Chews are great for both children and adults. A single DNA Miracles OPC-3 Chew contains 25 grams of Pycnogenol ®† – the same amount found in a single serving of our Isotonix OPC-3 ® product.