High-Strength Cohesive Silicone Gel.

A proven silicone gel that is strong while being soft to the touch.

Sientra's HSC and HSC+ silicone implant filler materials have undergone thorough testing. In rigorous laboratory tests that push breast implants to their limits, Sientra's two gels were demonstrated to be the strongest available on the market, while the complete implants (gel and shell together) remain remarkably soft to the touch.