What does the “functional” label on hair-loss shampoo mean?
In Korea, a product must be recognized as a functional cosmetic to claim that it “helps alleviate hair loss symptoms.” So the first step is to check whether the words functional cosmetic appear on the back of the product.
However, functional shampoos don’t treat hair loss; they’re meant to care for the scalp environment and help alleviate symptoms. If you suddenly lose a lot of hair or develop circular patches of hair loss, seeing a doctor should come first.
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You’ve identified the key point well. When shopping, it’s better to check the “functional cosmetic that helps alleviate hair loss symptoms” label and directions for use on the back, rather than the “hair-loss shampoo” wording on the front. The functional label means the product falls under a set review and reporting system; it does not guarantee that the shampoo treats the cause of hair loss or stops shedding.
Shampoo stays on the scalp for only a short time, so it’s also important that its feel and cleansing power suit you. In particular, if you’ve dyed or permed your hair, or have a sensitive scalp, check whether fragrance or cleansing ingredients cause irritation. Follow the directions on the label, and stop using it if irritation occurs.
If the amount of hair you’re losing suddenly increases or you notice round bald patches, see a dermatologist rather than waiting while trying different shampoos. Identifying the cause may need to come first, regardless of the functional label.