Neutrogena, which is favored by Audrey Hepburn, belongs to the Johnson & Johnson Group and is a classic American skincare brand. Neutrogena products have excellent pH control, and the first skin-friendly pH cleansing soap was launched, and the shampoo launched also mimicked a weakly acidic scalp environment of around pH5.
 
There are three main products that Neutrogena has introduced into China, the Repair Shampoo, the Decontamination Shampoo and the 2-in-1 Shampoo.
 
The shampoo for repairing damaged hair is highly advertised and is known as an "anti-dandruff artifact" because of its 0.5% coal tar content. However, this is not the case, and coal tar is a highly undesirable anti-dandruff ingredient. The ingredient has poor antifungal function and poor anti-dandruff effect, but it is particularly irritating to salicylic acid and selenium sulfide, which brings more negative effects to the scalp than positive effects. In addition, coal tar has an extremely unpleasant odor, which is a dandruff additive that is close to being eliminated, and this product is not recommended.
 
Another residue-removing shampoo won the 2010 ALLURE Award. This model uses SLS as a surfactant, the cleansing power is excellent, the scalp and hair are dry and light after use, but the high cleaning power is accompanied by high irritation, SLS is one of the most irritating surfactants. This shampoo may cause color fading of color-treated hair, so it is recommended to use it up to once a week for a deep cleanse, as daily use will inevitably damage the scalp barrier and aggravate scalp problems.
 
The 2-in-1 shampoo is the most recommended of Neutrogena's three products. The concept of a 2-in-1 shampoo is not outstanding, almost all shampoos are a combination of cleansing and smoothing treatments, but the other two Neutrogena only shampoo and do not have silicone oil and other care ingredients. This shampoo 2-in-1 shampoo is infused with 1% zinc pyrithione, which has a relatively good effect on dandruff and cleansing.
 
The price of Neutrogena hair cleansing is about 70 yuan, but the formula of Neutrogena is at the level of 20 years ago, and most of the ingredients are almost eliminated, and the cost performance is low, so it is not recommended for consumers to buy it daily.