The product "Neutrogena Shampoo Scalp Build Up Control 133ML" is a therapeutic shampoo specifically designed to treat and control severe scalp conditions. The most common variant of this product is the Neutrogena T/Sal Therapeutic Shampoo.

Key Features:

Active Ingredient: The primary active ingredient is Salicylic Acid (typically 3%). This is a dermatologist-recommended ingredient that is clinically proven to break down and clear crusty, flaky scalp buildup.

Targeted Use: This shampoo is specifically formulated to control the symptoms of:

Dandruff: It helps to clear and prevent flakes.

Seborrheic Dermatitis: It provides relief from the itching and flaking associated with this condition.

Psoriasis: It is designed to help manage the symptoms of scalp psoriasis.

Effectiveness: The salicylic acid works to loosen and remove the dead skin cells that form scales on the scalp. It continues to work for hours after it's rinsed off, providing long-lasting relief.

Gentle Formula: The formula is typically fragrance-free, color-free, and preservative-free, making it suitable for those with sensitive scalps or allergies.