Nioxin is an over-the-counter product that is applied to the scalp to encourage thicker hair growth. Nioxin also is credited with reducing scalp inflammation, which can also reduce hair loss, according to Love to Know. However, as with many medications, Nioxin applications can be accompanied by some undesirable side effects. If you are using this product, it's important to be aware of these effects should they occur while you are using Nioxin.
Scalp Irritation
Nioxin contains a mixture of herbs, botanicals and coZyme, which is a proprietary ingredient that contains antioxidants and enzymes that work to stimulate hair growth, according to Love to Know. While these ingredients are meant to reduce irritation, in some instances they can actually result in irritation. This may be characterized by flaking or even itching of the scalp. Some Nioxin applications contain sodium lauryl and laureth sulfates, which may be more harsh to the scalp. If your formulation contains these ingredients, switching to a milder formula may offer results without causing irritation.
Hair Loss
Although Nioxin is created as a treatment to encourage hair growth, hair loss is a common side effect within the first few weeks of application, according to Love to Know. This occurs because the scalp is acclimating to the Nioxin. However, this initial hair loss should not exceed the first two weeks of use. If your hair loss extends beyond this time, discontinue use and seek medical treatment from a dermatologist.
Redness
While scalp redness can first appear a negative symptom, this may actually indicate Nioxin is working on the scalp, according to Nioxin.com. This is because Nioxin includes the ingredient niacin, which is a vitamin that dilates blood vessels in the scalp. This helps to increase circulation and bring blood to the scalp--an action that results in growth. While redness may initially appear after applying Nioxin, it should subside within an hour to two hours, according to Love to Know. If your scalp redness lasts longer than this or is accompanied by other adverse symptoms, discontinue use. If the redness does not improve, seek medical treatment.
