Is the Scar Gel flexible and does it create a protective barrier against outside pathogens?

Yes, that is absolutely correct!

In addition, medical-grade silicone is hypothesized to also act as a signaling molecule to nutrients found in the production of body tissue and in particular support the growth of the Extracellular Matrix (ECM).

Thus, silicone helps the organize and improve the ECM formation process to ensure the tissue heal and fuse in the most optimal way. Additional research is ongoing but what is known that Medical grade silicone is a key ingredient in tissue healing and scar reduction therapy.