Why avoid 2 in 1 shampoo?

Many people prefer 2 in 1 shampoo, as they save them considerable time. However, experts recommend that this is a "convenient but not beneficial" habit , since these combined products do not have as much effect as using shampoo and conditioner separately.

Why is that? According to experts, it is all about the impact of shampoo and conditioner on flaky epidermis on the outer layer of the hair, which contributes to the smoothness of healthy hair.

A single product that cannot both open and close the epidermis of the hair at the same time.

Shampoo cleans your hair by detaching the epidermis to release any dirt stuck or sticky in the hair fibers. It also removes the natural oils of the hair, making it more dry. Meanwhile, conditioner will moisturize the hair and seal the previously cut epidermis, giving the hair a sleek and healthy look.

However, if you use 2-in-1 shampoos (including shampoo and conditioner in a product), you won't get the same results as using them separately. Daniel Davies, manager of Pall Mall Barbers Hair Stylist, explains that this is because a single product cannot both open and close the epidermis of the hair at the same time.

If 2-in-1 shampoo is used, the hair is cleaned, but the conditioner only covers the outside of the hair and does not close the epidermis. This results in a frizzy hair, which requires washing hair more often.