Quick side note in here. Hair moisturizing sprays should not be confused with hair mists which are perfumed sprays one applies to hair rather than using regular perfume.
When I talk about hair moisturizing sprays, I'm thinking about those sprays you use on your hair to moisturize them so they stay in better shape. I have friends who have absolutely straight hair who never seem to worry about moisture while I'm always fighting to keep enough in my hair so it won't frizz. Technically, these sprays are designed to protect your hair from becoming dry or experiencing increased hair breakage. They are crucial to keep your hair as healthy as possible.
A good spray contains ingredients designed to hydrate and emollients that lubricate, hydrate, soften, and moisturize your hair all at once. Since such sprays tend to be quite light weight, they can be used on the scalp and strands regularly without experiencing product buildup. They are extremely easy to use but it is important to read directions because some are designed to be used on damp hair while others are only for dry hair and some work on either.
If you look for a product, please note that there is a difference between a hair hydrating spray and a hair moisturizing spray. A moisturizing spray is actually for everyday use while the hydrating spray is used when your hair is feeling dry. When you are checking out products, you might see some moisturizing sprays that double as a detangler, others are advertized as restorative sprays, hair strengthening sprays, but they all have moisturizing as part of the description.
Have fun checking the products out and see if any help keep your hair in better shape. Let me know what you think, I'd love to hear. Have a great weekend.