What does zinc pyrithione do in an anti-dandruff shampoo?

Zinc pyrithione is an antimicrobial agent that targets the Malassezia yeast that contributes to dandruff, inhibiting its growth and reducing scalp flaking and itching when used at the typical concentration found in medicated shampoos.

How often should I use this shampoo and are there any controversial chemicals I should be aware of?

For most users, applying the shampoo two to three times per week is sufficient, with increased frequency for severe dandruff; the formula includes potentially controversial ingredients such as sodium lauryl sulfate, sodium laureth sulfate, dimethicone, fragrance allergens, and the preservatives methylisothiazolinone and methylchloroisothiazolinone, which some consumers prefer to avoid.

Head & Shoulders • 270 ml

Shampooing antipelliculaire Instant Dry Scalp Care

Q: Is this shampoo suitable for sensitive or dry scalps, or could its ingredients cause irritation?

The shampoo is designed for dry scalps and the zinc pyrithione effectively reduces dandruff, but its sulfates (SLS and SLES), fragrance allergens (linalool, benzyl alcohol, hexyl cinnamal, benzyl salicylate) and the preservatives methylisothiazolinone and methylchloroisothiazolinone can cause irritation for people with sensitive skin.

Hair

Product Insights

Head & Shoulders Instant Dry Scalp Care is a 270 ml anti-dandruff shampoo formulated for dry scalps, packaged in a plastic bottle. The formula combines zinc pyrithione for flake control, dimethicone and sweet almond oil for smoothness and conditioning, and classic surfactants to provide a thorough cleanse. However, it also contains sulfates, fragrance allergens (linalool, benzyl alcohol, hexyl cinnamal, benzyl salicylate) and the preservatives methylisothiazolinone and methylchloroisothiazolinone, which may irritate sensitive skin.

Comparative Analysis

In the crowded anti-dandruff segment, this Head & Shoulders Instant Dry Scalp Care shampoo differentiates itself by pairing a high-dose zinc pyrithione complex with conditioning agents like dimethicone and sweet almond oil, delivering fast flake relief for dry scalps while retaining a traditional sulfate-based lather.

Ingredients

Aqua, Sodium Laureth Sulfate, Sodium Lauryl Sulfate, Dimethicone, Cocamide MEA, Zinc Carbonate, Glycol DIstearate, Zinc Pyrithione, Sodium Xylenesulfonate, Cetyl Alcohol, Parfum, Guar Hydroxypropyltrimonium Chloride, Sodium Chloride, Hydrochloric Acid, Glycerin, Magnesium Sulfate, Sodium Benzoate, Magnesium Carbonate Hydroxide, Linalool, Benzyl Alcohol, Hexyl Cinnamal, Benzyl Salicylate, Magnesium Nitrate, Sodium Hydroxide, Prunus Amygdalus Dulcis Oil, Sodium Polynaphthalenesulfonate, Paraffinum Liquidum, Methylchloroisothiazolinone, Magnesium Chloride, Methylisothiazolinone

84%

35%

Unlock Deep Cosmetic Safety Check

Scan this and millions of other cosmetics with the free NutrScan app to discover ingredient safety, potential concerns, and detailed product analysis before every purchase.