Coal Tar. Coal tar is the active ingredient in one of the best shampoos called Neutrogena’s T-Gel Shampoo. As the name suggests, it is a byproduct of coal formed when the coal is converted to coke or gas. This ingredient is used to treat many scalp conditions that involve dandruff and other thick crust conditions such as eczema and psoriasis. It is advised that when using shampoo with coal tar, one should massage it and then leave it there for five minutes. Afterwards, the individual should rinse the hair and scalp thoroughly. Coal tar is a recommended ingredient for fighting against dandruff caused by mild or moderate psoriasis as it helps slow down the regeneration of cells.
Salicylic Acid and Sulfur. Salicylic acid and sulfur are both used in many products to treat a wide array of skin disorders. Dandruff is one of them. A known anti-dandruff shampoo that uses a combination of these two ingredients is Sebex. In fact, Salicylic Acid is one of the most common and oldest active elements found in the best shampoos for dandruff. It exfoliates the scalp and helps clear the area of dead skin cells. In addition to that, it is also an excellent anti-inflammatory and antimicrobial agent.
Ketoconazole. Ketoconazole is the most potent anti-fungal treatment you can find in the best shampoos over the counter. Nizoral shampoo uses this ingredient. Ketoconazole is a component that has anti-androgenic properties that can help reduce DHT which is a hormone that is associated with premature hair loss. Furthermore, since this component is a fungicide, it is used in shampoos to treat dandruff that develops due to yeast infection of the scalp. Shampoos that contain this ingredient are often best for severe fungal infections. When shampoo contains two percent of this ingredient, it can help control moderate dandruff. Just like any of the best shampoos, when one uses this, they must massage it gently into the scalp and leave it there for at least five minutes. However, it is advised that before one uses this, he or she should consult a doctor because this ingredient may cause liver damage.
Zinc Pyrithione. Zinc Pyrithione has been used for decades as an anti-fungal treatment in the best shampoos to combat dandruff. A popular shampoo that uses this component as their active ingredient is Head & Shoulders. This ingredient is an anti fungal ingredient that works to break down the dead skin cells of the individual. This powerful dandruff fighter has anti-bacterial properties that help reduce fungus growth on the scalp. Unlike the other components used in other anti-dandruff shampoos, zinc phyrithione is proven to be gentle enough to be used daily. For it remains effective, it is advised that one should use it at least twice a week. Once the condition is under control, the treatment can then be minimized to once a week.
Selenium Sulfide. A well-known dandruff shampoo that uses this component as part of their active ingredients is Selsun Blue. In this part of the formula, the shampoo works well to get rid of yeast that causes dandruff. To be precise, it controls dandruff in two ways.
First, like Zinc Pyrithione, it is an anti-fungal agent that is effective at killing and controlling the Malassezia yeast. Also, like coal tar, it inhibits skin cell regeneration. The recommended application of using this ingredient is by applying one or more teaspoons of the shampoo on the scalp, massaging it for a while, leaving it on the scalp for not more than three minutes then rinsing it thoroughly.