减肥肽的保质期并不是一个固定值。这主要取决于 two key factors: the product’s storage conditions and whether it has been opened/reconstituted.
未开封的冻干粉
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Under standard storage conditions(2–8°C 冷藏、避光、密封、干燥且不受剧烈温度波动影响):生产时标明的保质期通常为 24–36 months (subject to your product’s production standards and quality inspection report). This is the standard shelf life for lyophilized peptide medications, as the low-temperature environment maximizes their chemical stability.
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Under room temperature storage conditions(25℃以下,避光密封):未开封的粉末也可在室温下短期保存,但其保质期会明显缩短,通常至 3–6 months。如果环境温度超过25°C,保质期将进一步缩短,功效可能会过早降低。
打开/重构的溶液(使用阶段)
减肥肽粉使用前必须用生理盐水或专用溶剂复溶。现阶段保质期极短,这是用户重点考虑的:
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Opened but not reconstituted:如果粉末小瓶已打开但未添加溶剂,则必须立即重新密封并放回 2–8°C 的冷藏库中。保质期将缩短至 within 1 month,建议及时使用。
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Reconstituted into a solution:这是保质期最短的阶段,无论是冷藏还是室温储存:
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Refrigerated (2–8°C): 保质期为 7–14 days.
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Room temperature (below 25°C): 保质期仅 24–48 hours.
- 如果环境温度超过25°C,建议配制后的溶液在 12 hours。否则,会因肽降解而失效,甚至可能产生过敏性杂质。