Particles according to the invention are made of a viscoelastic medium, are injectable gel particles, and have a size, when subjected to a physiological salt solution, in the range of from 1 to 5 mm. The particles are useful in a soft tissue augmentation implant. The implant comprises particles of a viscoelastic medium, wherein a major volume of the particles are injectable gel particles according to the invention. The implant is useful in a method of soft tissue augmentation in a mammal, including man, comprising subepidermal administration at a site in said mammal where soft tissue augmentation is desirable, of an implant according to the invention.
