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How to do a hair mask for brittle hair
Use a moisturizing mask for frizzy hair.
If your hair is wavy or curly, it may be more prone to frizz. In this case, opt for a moisturizing mask full of rich oils such as jojoba, avocado, and grape seed.
These kinds of masks will best restore brittle hair that's prone to frizz. Look for protein masks for thin or damaged hair.