Coal Tar Shampoo: Uses, Side Effects, and How to Use It

What is coal tar shampoo used for?

Coal tar shampoo is a specialized treatment often used for scalp conditions such as seborrheic dermatitis, psoriasis, and dandruff. It is intended to help reduce symptoms like flaking, itching, redness, and scaling.

Some well-known products include Neutrogena T/Gel and DHS Tar. The exact formula can vary by brand, so it is important to check the label for directions and ingredients.

How does coal tar shampoo work?

Coal tar shampoo is thought to work by slowing down the rapid growth of skin cells and helping calm scalp inflammation. This can reduce the buildup that contributes to flaking and irritation.

It may also help with dandruff-related symptoms by affecting the scalp environment in a way that supports symptom relief. Results can vary from person to person.

Possible side effects of coal tar shampoo

Coal tar shampoo can be effective, but it may also cause side effects. Commonly reported effects include:

• Scalp stinging
• Burning or irritation
• Skin peeling
• Rash
• Increased sensitivity to sunlight
• Folliculitis, or inflammation of hair follicles

Serious allergic reactions are rare, but urgent medical help is needed if you develop swelling of the face or throat, trouble breathing, or severe dizziness.

Warnings and precautions

Coal tar can make skin more sensitive to sunlight, so sun exposure after use may increase the risk of sunburn or irritation. Check the product label for any specific precautions about sun exposure.

If you have a history of skin allergies or very sensitive skin, it is sensible to ask a healthcare professional before using coal tar shampoo. If you are pregnant, use it only with medical advice, since the original content notes limited research in pregnancy.

Tell a doctor or pharmacist about any other scalp or skin products you use, especially if they may also irritate the skin.

How to use coal tar shampoo

Always follow the directions on the package. The original content describes the general steps below:

1. Wet your hair thoroughly.
2. Apply coal tar shampoo to the scalp.
3. Massage it gently into the scalp for several minutes.
4. Rinse thoroughly.
5. Repeat if directed by the product label.

The original content notes that it is often used two to three times a week, depending on the severity of the condition. However, the exact schedule should come from the product instructions or a healthcare professional.

Can you use conditioner after coal tar shampoo?

Yes. A mild, moisturizing conditioner may help reduce dryness after coal tar shampoo use. If your scalp is irritated, it may be better to apply conditioner mainly to the hair lengths and ends rather than directly to the scalp.

Choose a gentle product and avoid anything that seems to worsen irritation.

What other drugs or products may interact with coal tar shampoo?

Coal tar shampoo may interact with other topical skin or scalp treatments by increasing irritation or sensitivity. The original content also notes that some people may use oral medicines for skin conditions, so it is important to mention all treatments to a healthcare professional.

If you are using prescription creams, medicated shampoos, or other over-the-counter scalp products, ask a pharmacist or doctor whether they can be used together safely.

What to verify before using coal tar shampoo

Because coal tar products can differ by brand and strength, it helps to check the following before use:

• The directions on the label or leaflet
• How long to leave the shampoo on the scalp
• How often to use it
• Whether sun exposure should be limited after use
• Whether it can be combined with other scalp treatments

Frequently asked questions