Melasma is a skin condition characterized by dark patches or blotches on the face.

黄褐斑是一种皮肤状况，其特征是面部黑点或斑点。

If you have dark skin or melasma, avoid these products, or choose 'active soy' products instead.

这里也说了，如果你皮色深或者有黄褐斑，要避免这些产品。

Conclusions The occurrence of melasma is associated with fluctuation of hormone levels and sun exposure.

结论黄褐斑的发病与激素水平波动和日晒有关。

Combination therapy, sequential therapy or supplement therapy should be included in the treatment of melasma.

多重治疗、序贯治疗或补充治疗应纳入黄褐斑治疗中。

Conclusion Micro-needle therapy is effective, and provides a new method for the treatment of refractory melasma.

结论：微针疗法治疗难治性黄褐斑疗效确切，无明显副作用，为治疗难治性黄褐斑提供了一个新手段。