graying

If the hair graying is inreversible, hair colorant is the main choice for the masking of hair color change.

在无法头发变灰的情况下，着色剂是恢复头发颜色的主要方法。

2. face chlorosis, splash, chloasma, killo, soreness and weakness of waist and knees, dizziness and tinnitus, early graying hair and astriction, etc.

面色痿黄、色斑、黄褐斑、黑斑，腰膝痠软、头晕耳鸣、须发早白、便等。

Characters : Sequesters minerals which can interfere with soil removal or react with alkaline builders. Prevents yellowing or graying caused by soil redeposit.

特性：螯合水中矿物质，以防止其与清洁剂中的有效成份发生反应布影响去污能力，避免布件发灰、发黄。