CVS Health and Walgreens are no longer limiting the number of at-home COVID-19 tests customers can purchase at their stores, spokespersons for both companies have confirmed. The two largest pharmaceutical chain stores in the United States announced in December—just days before Christmas—that they were limiting the number of at-home COVID-19 testing kits that customers could buy be due to “unprecedented” holiday demand for them. At the time, Walgreens put in effect a four-item purchase limit for customers while CVS shoppers were limited to six at-home test kits per purchase. Representatives of both companies told CBS MoneyWatch that they have now been able to increase their inventory of the over-the-counter virus testing kits and have thus removed purchase limits. A spokesperson for Walgreens said customers can now purchase as many rapid COVID-19 tests as they want from the retailer. A  CVS Pharmacy spokesperson said, “We’ve worked with our vendors to increase inventory of OTC COVID-19 tests and have removed all product limits …