Selsun (Selenium Sulfide)


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50 ml 100 ml

Price £2.95

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Expected delivery date:

Friday, 8 December 2023

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UK Registered Pharmacy

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Discreet & Confidential

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  • Overview
  • FAQ
  • Side Effects
  • Patient Information Leaflet
  • Reviews

What is Selsun (Selenium Sulfide)

Selsun Dandruff Shampoo is a medicated shampoo used to treat the scalp from dandruff and seborrhoeic dermatitis. It is effective in reducing grease on the scalp and helps with slowing down the process of newly grown skin cells.

The skin on the scalp is more sensitive than any other part of our body and grows skin cells at a faster rate. It is made up of tissue layers that contain more hair follicles and sebaceous glands. Selsun Dandruff Shampoo 2.5% reduces the growth of the grown tissues and improves nourishment for the hair to grow at a healthier rate.

Using this anti-Dandruff Shampoo on a regular basis helps the tissues on the scalp stay longer and keep the skin cells more connective thus healthy. This product is safe for anyone over the age of 5. This Shampoo is considered a pharmaceutical medicine and is approved by the Medicines & Healthcare Products Regulatory Agency.

How Effective is Selsun Dandruff Shampoo?

Selsun Dandruff Shampoo contains 2.5% Selenium Sulphide. Selenium Sulphide is excellent at killing a type of fungus known as Dermatophyte. Eliminating Dermatophyte helps with the prevention of cutaneous mycoses, also known to cause nail and hair infections. Selenium Sulphide is classified as an anti-infective, which works by slowing yeast growth that causes various infections. This active ingredient is reported by a Journal of Dermatology to be effective in reducing cell turnover and has anti-seborrheic properties. It is considered a powerful anti-dandruff active ingredient and is found in many anti-dandruff treatments.

With Selenium Sulphide as its active ingredient, Selsun Dandruff Shampoo provides an anti-bacterial and healing effect on people prone to dandruff. However, you may experience slight oiliness, which is a common reaction to Selenium Sulphide for some people.

Can I Buy Selsun Dandruff Shampoo online?

Yes, you can buy Selsun Dandruff Shampoo online. If you are unsure about compatibility, sensitive to specific ingredients, or have certain scalp injuries, you can either book an appointment with your GP or pharmacist to discuss. Or else you may prefer to book an appointment with one of Click Pharmacy’s own doctors, who are available to offer advice.

There is a quick questionnaire to complete so our doctors can assess the suitability of your treatment, after which you can check out quickly and easily. Your order will be with you in discreet packaging the next working day if ordered before 3 pm.

What dose should I choose?

Selsun Dandruff Shampoo comes in 50mL, 100mL, and 150mL bottles.

The dose of choice will depend on the duration of use. For daily use, a 150ml bottle is recommended. You may consult a local pharmacy to confirm the ideal dose. For weekly use, a 150mL would last you around a month or more.

How Should I take Selsun Dandruff Shampoo?

Shake the shampoo bottle well before use. Twist the cap off anti-clockwise. Pour some shampoo on your palm and rub it on your head. Massage the scalp and scrub thoroughly. Allow Selsun Dandruff Shampoo to sit for 2-3 minutes and rinse off gently. Some customers have reported good result after leaving it for about 5 minutes. Ensure that your hair is completely saturated in Shampoo and that the foam has been gently massaged into the scalp.

Use Selsun Dandruff Shampoo twice a week for the first two weeks. Then, use the Shampoo only once a week for the next two weeks. After the first four weeks, regular use of Shampoo is only necessary as required to improve certain scalp conditions. If you begin to experience any side effects, stop and consult your healthcare professional.

Do not forget to close the seal of the shampoo bottle tightly after use and keep out of children’s reach. For frequent use due to medical treatment, use more Shampoo if a fungal infection of the scalp/hair is present.

Do not, under any circumstance, swallow or inject the Shampoo. Avoid contact with the eyes. If the by chace Shampoo does get in your eyes, wash immediately with lots of cold water.

Seek advice of a health care professional before using if you are breastfeeding, pregnant, planning to become pregnant, or if you suffer from allergies. It is also recommended to seek advice from a local dermatologist or pharmacist for the advisable dosage based on the medical condition.

How Does Selsun Dandruff Shampoo Work?

Selsun Dandruff Shampoo contains an essential ingredient Selenium Sulphide 2.5%.

Selenium Sulphide is a compound that has medical use to treat pityriasis versicolor, seborrheic dermatitis, and dandruff.

The function of the Sulphide is to destroy a particular type of fungus called Dermatophyte. Dermatophyte is the cause of the conditions mentioned above. It is prone to grow on the scalp to damage skin cells and cause hair infection. The Shampoo helps with the prevention of infections as it contains Selenium Sulphide, an antifungal medication.

Selsun Dandruff Shampoo 2.5% prevents fungus from growing on your scalp. It is essential to let this chemical sit onto the skin of the scalp for maximum effectiveness, which would take more than a minute. Selsun Dandruff Shampoo help preserve the skin cells on the scalp as well as the amount of natural oil produced on hair.

How Long do I Use Selsun Dandruff Shampoo Before I Notice a Difference?

Pharmaceutical instructions recommend using the Shampoo twice a week for the first two weeks and then once a week for the consecutive two weeks.

For a noticeable difference, the Shampoo must be used at least two times a week as directed by physicians. Other brands of dandruff shampoo require the application for three to four days for up to eight weeks for medical treatment.

If rashes appear during the process of applying dandruff, it is advisable not to use the shampoo and caution to stop applying if dandruff does not improve in 2 – 4 weeks.

What are the side effects of Selsun Dandruff Shampoo?

As with other shampoos, oiliness or dryness of hair and scalp may occur depending on compatibility. Hair loss and skin irritation are side effects that can be avoided by rinsing the hair with water after treatment.

If you experience any of the following side effects after using Selsun Dandruff Shampoo, stop using it immediately:

  • Skin irritation or burning sensation
  • Excessive oiliness or dryness of the scalp and/or hair
  • Increase of hair loss
  • Hair discolouration
  • Allergic reaction (rash, hives)

If you are experiencing other adverse effects, stop using the product and visit the pharmacist. After accidental ingestion, contact your physician or visit the ER as soon as possible.

When shouldn’t I use Selsun Dandruff Shampoo?

Make sure to check ingredients before purchasing any medical products, including Selsun Dandruff Shampoo. Do not use this product if you are allergic or hypersensitive to the following ingredients:

  • Selenium Sulphide
  • Bentonite
  • Titanium dioxide
  • Citric acid
  • Sodium dihydrogen phosphate dehydrate
  • Glyceryl monoricinoleate
  • Sodium Chloride
  • Sodium Hydroxide.

What makes Selsun Dandruff Shampoo different from Head and Shoulder Anti-Dandruff Shampoo?

Head and Shoulders is known to use the active ingredient Pyrithione Zinc, while Selsun’s principal active ingredient is Selenium sulphide. Both serve as antifungal ingredients, though Pyrithione Zinc is more popular for treating milder dandruff. Selsun Dandruff Shampoo has been in use longer, and according to dermatologists, it can fight off conditions of a higher degree of medical severity.

Can children use Selsun Shampoo?

Selsun Shampoo is suitable for use by adults and children over the age of 5 years old. It should not be used by children under the age of 5 years old.

How should I store Selsun Shampoo?

You should store Selsun Shampoo in a cool dry place, out of reach from children, and at room temperature. This dandruff shampoo should not be exposed to extreme temperatures or direct sunlight.

Is Selsun Shampoo suitable for long term use?

Yes, Selsun Shampoo is suitable for regular use in order to effectively treat dandruff and other dry scalp conditions.

What if I forget to use Selsun Shampoo?

If you forget to use Selsun Shampoo you should skip the application you just missed and continue as normal. As long as you maintain a regular routine, one missed application will not have a big impact.

Can I use Selsun Shampoo while having hair treatment?

You should not use Selsun Shampoo 2 days prior to, and 2 days after getting any form of hair treatment. This is to ensure the products do not interfere with one another and cause unwanted side effects.

Like all medicines, after using Selsun Shampoo you are likely to experience a number of different side effects. It is important to note that not everyone experiences the same side effects, and symptoms are expected to improve over multiple applications. Possible side effects include the following:

  • Oily scalp
  • Greasy hair
  • Increased hair loss
  • Irritation
  • Burning like sensation

If any of these side effects worsen, you should stop using Selsun Shampoo immediately and seek medical advice as soon as possible.

Always read the instructions on the packaging and the patient information leaflet before using a new product. The patient information leaflet for Selsun Dandruff Shampoo 2.5% can be found here.

Authored by

Last reviewed 11 April 2023

Superintendent Pharmacist GPhC No.2220953

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