A bi-component silicone resin (6) is introduced into a container (4). A placement of at least one solid cosmetic product (5) is placed on the silicone resin (6) introduced in the container (4). The resin (6) is polymerized with consequent anchoring of the cosmetic product (5) to the container (4). The bi-component silicone resin is a modified polyvinyldimethylsiloxane-based resin consisting of two low viscosity elastomeric silicones, polyvinylmethylvinylsiloxanes and polymethylhydrogensiloxane, suitably mixed. In particular, a RTV-GEL resin or an elastomeric RTV resin is used.