Dermax Therapeutic Shampoo – 250ml

Based on 13 reviews
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RRP  £10.24
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Paul Kelly - Medical Content Writer
Paul Kelly
Medical Content Writer
James O'Loan - CEO & Superintendent Pharmacist
James O'Loan
CEO & Superintendent Pharmacist

What is Dermax Therapeutic Shampoo?

Dermax Therapeutic Shampoo is a treatment provides relief for the effects of dry scalp conditions such as seborrhoeic eczema (red, itchy, scaly skin) and cases of severe dandruff. This shampoo works thanks to the active ingredient that is contained in the shampoo, benzalkonium. This is what is called a surfactant. This loosens any dead skin and removes it and also provides mild antiseptic properties, as some bacteria can make the condition worse.


What causes dandruff?

Dandruff is something that can affect anyone. It is a condition where skin from the scalp becomes loose and ends up in the hair. This is as a result of skin production happening too quickly which can be the result of several different conditions, which include:

  • Seborrhoeic eczema/dermatitis
  • Tinea capitis – A fungal infection in the scalp
  • Eczema
  • Allergic dermatitis
  • Psoriasis

Dandruff is not caused by poor hygiene, but that can be a factor in the severity of the condition.


Who is this shampoo suitable for?

This shampoo is suitable to be used by adults and children. It should not be used by anyone who is allergic to the ingredients contained in the shampoo. Even though there is no evidence of any problems, you should speak to a doctor or Chemist 4 U pharmacist before using if you are using any other form of medication.


Can someone pregnant or breastfeeding use this shampoo?

There should be no problems when using this shampoo when pregnant or breastfeeding. Though if unsure, consult the advice of a medical professional before using.


How should Dermax Therapeutic Shampoo be used?

This shampoo can be used daily if it is necessary to do so until your condition gets better. To use this shampoo, apply a generous amount to wet hair and then massage it into the scalp thoroughly using the tips of the fingers. Leave the shampoo on for a few minutes, remove as much lather off with the hands as possible and then rinse it off. Repeat the process and then dry the hair as normal.


Are there any side effects?

There is a chance of side effects when using this shampoo, though it is rare. A skin reaction can occur as a result of an allergic reaction. The scalp condition can also get worse when using this shampoo because of a reaction. If you notice a side effect, stop using and speak to a doctor as soon as possible. You can also record a side effect that you notice using the MHRA Yellow Card Scheme.


More Information

This product is a medicine; make sure to speak to your doctor or Chemist 4 U pharmacist before taking this product if you have an underlying medical problem or are taking any other medicine or complementary therapy. If your symptoms get worse or continue after taking this product, contact us or your doctor. For medical services in your area, please refer to

If you are pregnant, trying to become pregnant, or breastfeeding, speak to your doctor or our pharmacist before taking this product. If you suffer from any allergies, ask your doctor or our pharmacist if this medicine is right for you.

Store all medicines out of sight and reach of children.

Please read the included leaflet carefully before using this product.

Please contact your GP if appropriate regarding this product.


Helpful Advice on Medication Restrictions & Addiction

For further information on our medication restrictions policy, please click here.

If you are concerned about addiction to 'over the counter' medication, we urge you to visit the below links for professional help and advice:

Dermax Therapeutic Shampoo – 250ml Reviews

By Maurice Radcliffe,
January 02, 2024
Have only used it once so cannot pass an opinion at the moment
By Susan jamieson,
October 17, 2023
Great product and price
By Angela Forster,
February 16, 2023
Very helpful for itchy scalp without drying hair out
By Customer Mr Bob Ward,
February 07, 2023
Effective but expensive
By Katrina Coll,
September 23, 2022
It’s great my scalp is so much better not even itchy anymore.
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