Foreign irritants, dandruff, and scalp conditions can cause persistent itchiness. The right medicated shampoo can calm inflammation, control flaking, and restore comfort. This guide highlights five highly effective options available on Amazon UK, focusing on 2% ketoconazole formulas and salicylic-acid treatments, alongside multitreatment picks designed for seborrheic dermatitis, psoriasis, and folliculitis. Each selection targets itchy, flaky scalps with clinically supported ingredients and dermatologist-friendly formulations.
| Product | Brand | Size | Key Benefit |
|---|---|---|---|
| Ketopine Ketoconazole 2% Medicated Shampoo (60ml) | Asrev Healthcare | 60ml | Fast anti-dandruff relief |
| Sea Magik Salicylic Acid Shampoo (300ml) | Sea Magik | 300ml | Remineralising, soothing for medicated conditions |
| Anti-Dandruff Ketoconazole 2% (3 x 60ml) | Asrev Healthcare | 3 x 60ml | Fragrance-free, convenient 3-pack |
| Ketopine Ketoconazole 2% Medicated Shampoo (100ml) | Asrev Healthcare | 100ml | Clinically proven anti-dandruff |
| Xpel Medicated Shampoo Treatment (3 x 300ml) | Xpel Hair Care | 3 x 300ml | Dandruff, psoriasis, itchy scalp relief |
| Folliculitis Scalp Psoriasis Treatment Shampoo | Recuren Plus | — | Relief for seborrheic dermatitis and scalp psoriasis |
| Seborrheic Dermatitis & Folliculitis Scalp Shampoo | Swiftalyn | — | Tea tree, rosemary, caffeine for soothing relief |
| Nizoral Anti-Dandruff Treatment Shampoo | Nizoral | 60ml | Ketoconazole-based dandruff control |
Ketopine 2% Medicated Shampoo (60ml)

Ketopine uses a 2% ketoconazole formula to target fungal causes of dandruff and scalp irritation. Clinically proven to reduce flaking and itch, this product is designed for stubborn dandruff and conditions like seborrheic dermatitis and psoriasis. The formula aims to soothe irritated scalps while providing long-lasting protection against recurrence, making it suitable for regular use as part of a scalp-care routine.
Sea Magik Salicylic Acid Shampoo (300ml)

Sea Magik blends salicylic acid with organic seaweed and panthenol to help exfoliate and hydrate the scalp. This formulation is designed to remineralise and cleanse deeply while soothing itchy scalps, particularly for medicated conditions such as psoriasis and folliculitis. Its gentle balance of minerals and vitamins supports scalp health over time, offering relief without harshness.
Ketopine Ketoconazole 2% Medicated Shampoo (3 x 60ml)

This fragrance-free ketoconazole medicated shampoo addresses persistent dandruff and itchy scalp symptoms with a 2% antifungal formula. It targets seborrheic dermatitis and scalp psoriasis, providing a reliable option for those who require continuous treatment. The 3-pack format supports ongoing management and consistent scalp care.
Xpel Medicated Shampoo (3 x 300ml)

Xpel Therapeutic Shampoo is formulated for dandruff, psoriasis, and itchy scalps. It combines mild surfactants with anti-dandruff and dermocleansing agents, offering relief for chronic scalp conditions when used regularly. The product’s usage guidance suggests multiple weekly applications to support sustained improvement.
Folliculitis Scalp Psoriasis Treatment Shampoo

Recuren Plus offers a formula aimed at folliculitis with scalp psoriasis, featuring salicylic acid, piroctone olamine, rosemary, and coconut oil. The blend targets inflammation and flaking while nourishing hair and scalp health. The inclusion of natural oils supports moisture balance, potentially reducing irritation and promoting healthier follicles over time.
Swiftalyn Seborrheic Dermatitis & Folliculitis Shampoo

Swiftalyn combines tea tree, rosemary, biotin, and caffeine to soothe itchy, flaky scalps prone to dandruff and psoriasis. The formula aims to balance moisture while supporting scalp health, with an emphasis on natural extracts that may help reduce irritation and promote healthier hair growth and vitality.
Nizoral Anti-Dandruff Treatment Shampoo

Nizoral uses a clinically proven ketoconazole formulation to address the root causes of dandruff. It starts working from the first wash, helping to relieve itching and remove flakes while soothing inflammation. This product is a trusted option for persistent dandruff and related scalp conditions where an antifungal approach is warranted.
Buying Guide
- Active ingredient focus: Ketoconazole-based shampoos (2%) target fungal causes of dandruff and scalp irritation, often effective for seborrheic dermatitis and psoriasis-related itch. Salicylic acid shampoos help with exfoliation and scale reduction, which can complement antifungal treatments.
- Scalp condition compatibility: For folliculitis or psoriasis, consider medicated formulas designed for delicate balance, moisturising oils, and combinations of active ingredients to minimise irritation.
- Fragrance and sensitivity: Fragrance-free options may benefit sensitive scalps, especially for those with reactions to added scents or preservatives.
- Packaging variety: Multi-pack formats (e.g., 3 x 60ml or 3 x 300ml) can offer cost efficiency and consistent supply for ongoing care.
- Usage pattern: Some products advise frequent use in early weeks, then gradual reduction. Follow the label guidance to avoid over-drying and ensure scalp restoration.
- Dermatologist guidance: If you have a persistent or severe scalp condition, consult a healthcare professional to determine whether an antifungal treatment or a tailored routine is appropriate.
- Allergy awareness: Check ingredient lists for potential irritants or fragrance components if you have known sensitivities.
- Assessed outcomes: Look for claims of reduced itching, decreased flaking, and improved scalps over several weeks, as many benefits accrue with consistent use.