Does Shampoo Get Too Old to Use?

Yes, shampoos and conditioners do expire. ... Most shampoo and conditioner products have a 12 or 24 month expiry date. So, if you're the type who rarely uses hair care products and can have a shampoo bottle stretch beyond one year, try to take note which month you bought a new bottle.

When should you throw out shampoo?

Shampoos and conditioners have a fairly long shelf life – three years for unopened bottles and 18 months for opened bottles. Anything after that and your product may have lost its effectiveness – it may not de-frizz like you wanted, add moisture like you wished for, or remove dandruff like you needed…

Is it safe to use expired shampoo and conditioner?

At the very least, expired shampoos and conditioners won't work the way they're supposed to. But, you can also run the risk of spreading bacteria onto your scalp, and opening the door for an infection. Yuck.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.