Maintenance and metabolic characteristics

collagen会被人体逐步代谢，效果暂时，需定期补充。它更适合短期塑形或术前预览。

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对于希望先看鼻型效果、或仅需轻微调整者较合适；若追求稳定持久的nose改变，手术类方式更对症。

Risks and operations

Injections also have risks such as blood vessels and must be operated by qualified personnel in formal institutions and must not be carried out in non-medical places.

The effect of nasal plastic surgery varies from person to person, and the operation carries certain risks; please choose a regular medical institution and a qualified doctor to fully communicate expectations through face-to-face diagnosis before surgery.