Infinicel is the commercial name used in some countries (like US) to advertise core utilized in P&G sanitary napkins. Formula and process to manufacture this core is very secret and not easy to discover. But using some patents we can make a very reliable guess.

Always Infinity core is composed of relatively thin, collapsed, polymeric foam material that, upon contact with aqueous body fluids, expand and absorb such fluids. These collapsed polymeric foam materials are also sufficiently flexible and soft so as to provide a high degree of comfort to the wearer.

Always Infinity is the name in US of a new sanitary napkin started to be distributed in major markets around the world. In Italy it is sold with name LINES E' starting from last July. Its absorbent core consists of a new and unique material called (in US) Infinicel. It is a sort of foam made of super absorbent polymer that is claimed to absorb 10 times its weight. Moreover the absorbent core has some holes in the center to facilitate absorption and some transversal channels in the back to increase fit.