How long can you use shampoo after expiration date?

How long can you use shampoo after expiration date?

As a rule of thumb, an unopened bottle of shampoo can probably last for 2-4 years if properly stored. Meanwhile, an opened bottle of shampoo may go bad anywhere between six months to two years.

Does expired shampoo cause hair loss?

The answer is yes, but it’s extremely unlikely that expired shampoo will cause hair loss. To lose hair from expired shampoo or conditioner the product would have to b