The Dangers of Using Expired Products
10. Shampoo/Conditioner
(Unopened) Expires in: 3 years
Average Cost: $6
You can often tell when your shampoo and conditioner are nearing their expiration. Signs include changes in color, unusual odors, and alterations in texture and consistency. For instance, shampoo may lose its foamy quality and leave your hair feeling sticky. If the product has separated, it may emit an unpleasant smell, resulting in hair that feels dirtier than before.
In conclusion, regularly checking your shampoo and conditioner for these signs can help ensure that you’re using effective products. Replacing them before they expire not only maintains your hair’s cleanliness and health but also enhances your overall hair care experience.

Even if your shampoo and conditioner are still unopened, it's important to discard them after three years. Expired products can harbor germs that may transfer to your hair and scalp, potentially leading to infections characterized by redness, blisters, and irritation. In some cases, these scalp issues could even result in hair loss.
In conclusion, to protect your scalp health and maintain the integrity of your hair, it's crucial to replace shampoo and conditioner within the recommended timeframe. Regularly updating your hair care products helps prevent infections and ensures that your hair remains clean and healthy.