New Delhi, Nov. 16 -- Hair serum has become one of those must-have products in hair care, yet many people still are not sure how to use it correctly. While it is known for adding shine, reducing frizz, and protecting hair from damage, the way you apply it can make all the difference. Used the right way, serum can boost smoothness, strengthen strands, and even support healthier hair growth over time. But small mistakes, like choosing the wrong formula or applying it unevenly, can stop you from seeing real results. If your serum is not doing much anymore, it is probably not the product but the way you are using it. Here is what you might be getting wrong.

Hair serum mistakes

Here are 9 common mistakes you should avoid while using hair ser...