On whether glycolic acid is suitable for use on the scalp
Glycolic acid has long been famous in the field of skin care. However, whether it can be used on the scalp or not is an important matter that needs to be explored in detail.

The characteristics of the scalp are different from those of other skin. On the scalp, there are many hairs and developed sebaceous glands, which often secrete oil to moisturize the hair. And the scalp skin is relatively delicate, with dense nerves and a keen touch.

Glycolic acid has unique chemical properties. It is a genus of fruit acids, which are light in molecule and can smooth the stratum corneum, loosen its connections, and make the old cuticle easy to fall off, so that the skin is renewed. On normal skin, it can promote metabolism, increase luster, and smooth fine lines.

When applied to the scalp, there are advantages and disadvantages to consider. The advantages are that if the stratum corneum of the scalp is too thick, the hair follicles are blocked, and the nutrient uptake of the hair is blocked. Moderate use of glycolic acid, or exfoliation, can pass the hair follicles, create a good growth environment for the hair, and can regulate the secretion of scalp oil, make the scalp refreshing, and prevent seborrhea.

But its disadvantages cannot be underestimated. Glycolic acid is irritating to a certain extent. For those with sensitive scalp skin, it may cause discomfort, such as itching, tingling, redness and swelling. What's more, it may damage the scalp barrier, making the scalp more susceptible to external interference, causing increased hair loss and inflammation.

Therefore, if you want to use glycolic acid on the scalp, you must first have a skin test. Take a little glycolic acid product, apply it behind the ear or in a hidden place on the scalp, and wait for a few days to see if there are any adverse reactions. If the skin tolerates it, you can use it with caution, and the initial concentration should be low, gradually increasing, and pay close attention to the scalp reaction. If there is any discomfort, stop using it immediately and seek professional help.

In short, glycolic acid for the scalp is not always feasible or not. It needs to be carefully selected according to factors such as personal scalp condition and skin tolerance, so as to achieve the purpose of maintaining the scalp and beneficial hair, and avoid adverse consequences.