Hi Sensitive Protective Serum | HI Sensitive Protective Serum is a formula specifically designed to protect against the aggressors that increase sensitivity in sensitive skin. This lightweight protective serum is designed to work on the skin in multiple ways. Benefits: | Creates a protective film to prevent the accumulation and penetration of contaminants, reducing irritation. Helps balance the bacterial microbiome, preventing the growth of bacteria that damage the barrier function. Regenerates the skin and protects against moisture loss.