Is there a way to increase/return pliability to silicone?

I have a discontinued Fossil watch, and the (non-replaceable) silicone band has become stiff. Soon to be brittle. Is there a way to make it soft again?

I have asked this question on other social sites with no definitive answer, but a lot of ‘chime ins’ about everything from stethoscopes to shoes. There is definitely a need/question ‘out there’.

**Note: this is more of physics type question than a “have you tried baby oil” type question. No offense, but I only have one watchband left and I can’t ‘voodoo’ on it.**