Unverified82% confidenceCautionTime unknown

廉价合金袖扣长期接触皮肤汗液可能因镍释放引起过敏，敏感肌应选标注无镍（nickel-free）的钛钢、纯银或K金材质

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Unverified镍含量高的合金胸针不建议过敏体质购买，接触汗液会引发接触性皮炎（红肿瘙痒），敏感肌应选925银、纯钛或K金材质92% similar Unverified老银材质（白铜/锌合金镀银）长期接触汗液、香水后易氧化变色，对金属过敏人群佩戴需谨慎。88% similar Unverified925银材质对金属过敏人群相对友好，但长期接触汗液或化妆品后易氧化变黑，需定期护理86% similar Unverified钛合金材质对金属过敏人群友好，生物相容性高，长期贴肤佩戴不易引发接触性皮炎，适合对镍等常见金属过敏的用户86% similar

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