Neutrogena T/Sal Therapeutic Shampoo with 3% salicylic acid comes in a 4.5 fluid ounce bottle and is specially designed to help with scalp issues such as flakes, itchiness, and dandruff, often caused by psoriasis and seborrheic dermatitis. This gentle yet effective shampoo works by targeting flakes and buildup, promoting a healthier scalp. Dermatologists recommend Neutrogena T/Sal Therapeutic Shampoo because it contains no preservatives or fragrances, making it a suitable option for those struggling with scalp problems. Regular use can help maintain a cleaner, more comfortable scalp environment, reducing symptoms and preventing future issues.