How long can you use mini shampoo?

How long a mini shampoo, or travel-size shampoo, lasts depends on how often you wash your hair and how much shampoo you use per wash. On average, you can expect it to last for about 5–10 washes.

Make sure to use only the amount you need—just enough to create a light lather. It is also a good idea to look for gentle cleansing agents such as cocamidopropyl betaine and conditioning ingredients like glycerin or panthenol to help keep your hair healthy.