NuPlasma opened Nov. 14 at 137 N. Guadalupe St., San Marcos. NuPlasma allows people who are at least 18 years old and in good health to donate plasma. Licensed medical providers can also purchase products from NuPlasma. The business is open Tuesday-Saturday from 10 a.m.-6 p.m. 512-518-6262. www.nuplasma.com