November 10, 1985 |
The essence of Collagen Corp. is flesh and bone. From a sticky glop that is among the most common materials in animal and human tissue, the Palo Alto company has concocted a unique product. It makes a goo of natural proteins called collagens that it extracts from cowhide and modifies for human use. It then sells the stuff to doctors, who inject it under patients' skin to smooth wrinkles and scars or to rebuild tissue during plastic surgery.