Silicones are occlusive, which means they create a barrier on the skin's surface. Some individuals with sensitive or acne-prone skin argue that certain silicones can clog pores, leading to breakouts and blackheads.
The occlusive nature of silicones may trap dirt, bacteria, and dead skin cells on the skin's surface, potentially contributing to dullness and skin congestion.
Silicones can form a film that may hinder the skin's natural ability to respire and exchange gases with the environment, which some people believe can lead to decreased skin health over time.
Silicones can provide a temporary sensation of smoothness and softness to the skin, but this effect may be superficial and not contribute to long-term skin health or improvement.
Some individuals may be sensitive or allergic to certain types of silicones, resulting in redness, itching, or irritation when using products containing them.
Silicones can create a barrier that may inhibit the absorption of active skincare ingredients, potentially reducing the effectiveness of other products applied to the skin.
Silicones are not biodegradable and can accumulate in the environment, potentially posing ecological issues. This may not directly affect the skin but is a concern for the planet.
Some argue that heavy reliance on silicone-based products can lead to dependency, making the skin less able to maintain its natural functions and health.