If a woman wears coloured cosmetic contact lenses for her husband, there is nothing wrong with it. But if she is wearing coloured contact lenses where others will see her, then this should not cause any fitnah or temptation. Also, there is nothing wrong with wearing ophthalmic contact lenses on the advice of specialists

If the percentage of alcohol in perfume is low, there is no need to worry about using it, but if it is high, then it is better to avoid it unless it is for a need, such as sterilizing wounds and the like.

There is nothing wrong with bleaching if it is done to remove a fault or blemish. But if bleaching is done for beauty and perfection, it is not permitted because it involves changing the creation of Allah.

It is not permitted for a woman to shave her head except in cases of necessity because the Prophet (peace and blessings of Allah be upon him) forbade women to shave their heads.