■ For non-electroplated jewelry :

• Karat Gold : The higher the gold content, the more stable the material, but there may still be oxidation and darkening over time. Avoid contact with hot springs and chemical substances such as perfume and detergents. Regular wearing against the skin reduces oxidation. When not worn, keep it dry and place in a storage bag to minimize exposure to air.
• Silver : Exposure to air, hot springs, and chemical substances such as perfume and detergents can lead to sulfurization, causing the color to darken. Regular wearing against the skin can prevent this. When not worn, keep it dry in a storage bag to reduce exposure to air. For minor sulfurization, you can use toothpaste or a silver polishing cloth to restore its brightness.
• Brass : The color of brass may darken over time, forming an antique bronze color. Use a silver polishing cloth to restore its original luster. Regular wearing and keeping it dry in a storage bag when not worn can reduce oxidation.

■ For electroplated jewelry : After electroplating, the finished product is less prone to oxidation and discoloration compared to the raw material. However, any material and thickness of the electroplated layer may experience varying degrees of wear over time, depending on factors such as air, moisture, individual perspiration levels, and wearing habits. This is a natural phenomenon. When not worn, keep it dry, and do not use abrasive materials like silver polishing cloths for cleaning.

■ Natural Gemstones : Avoid contact with chemical substances and physical impact. If purification or demagnetization is needed, use an appropriate method suitable for the specific mineral to prevent discoloration or alteration.

■ Pearls/Organic Gemstones : Avoid contact with chemical substances and abrasive cleaning materials.