Relying on the unique properties such as stable lubrication, chemical inertness, and biocompatibility of silicone oil, the market for medical-grade organic silicone materials has expanded rapidly in recent years. By 2025, the domestic market size of medical silicone oil will reach 3.2 billion yuan, with a domesticization rate of 35%. It is widely used in three major fields: medical devices, medical beauty dressings, and pharmaceutical excipients, becoming a new growth area for high-end silicone oil.

Medical silicone oil continues to maintain the basic core performance of silicone oil: in the lubrication aspect, high-purity non-irritating silicone oil is used for coating of urinary catheters and puncture instruments, reducing the friction between the instruments and the human mucosa, and reducing the discomfort during diagnosis and treatment; the hydrophobic and moisture-proof characteristics are used in waterproof dressings for wounds, forming an透气 protective film， isolating sewage and bacteria， while not hindering skin ventilation， and accelerating wound healing； the defoaming effect is used to make dimethyl silicone oil aerosol and pharmaceutical tablets， which are clinically used to relieve gastrointestinal bloating， pulmonary edema emergencies， and are included in the pharmacopoeia as a safe pharmaceutical excipient.

In the medical beauty field， modified phenyl silicone oil is used in sunscreen and repair essence formulas， being thin， waterproof， and non-irritating； liquid silicone gel， relying on the cross-linking process of silicone oil， is used to make scar patches and soft tissue filling materials， and can be long-term implanted in the human body without rejection reactions. Different from industrial silicone oil， medical-grade silicone oil strictly controls heavy metals and ring residues， and needs to pass biocompatibility tests， with a higher technical threshold. Previously， it was largely dependent on imports.

Currently， domestic raw material enterprises are continuously researching and developing high-purity medical silicone oil production processes. The domestic IOTA medical series silicone oil is gradually entering the supply chains of medical beauty equipment and pharmaceutical enterprises， significantly reducing the procurement costs of downstream enterprises. With the normalization of domestic medical beauty regulation and the implementation of policies for domestic substitution of high-end medical equipment， it is expected that the market size of medical silicone oil will exceed 4.5 billion yuan in 2027. Modified medical silicone oil with multiple functions of lubrication， protection， and stability will become the mainstream direction of industry research and development.