Coal Tar: Traditional dandruff and psoriasis shampoo active

ByDr. Celestine (Certified Trichologist)

What is Coal Tar?

Coal tar is a thick dark liquid made from heating coal without air. It slows down skin cell growth on your scalp that causes flaking and itchiness.

Here’s something surprising: This sticky substance was first used in Victorian times to treat skin diseases before becoming a hair care staple. It’s like nature’s sandpaper for your scalp – rough but effective at smoothing flakes.

Why Coal Tar Calms Crazy Scalp Flakes

Your scalp sheds skin cells too fast when it’s irritated. Coal tar presses pause on this process.

Think of it like traffic control for skin cells. It tells rapid-flaking cells to slow down and merge properly. I see 60% of my patients underestimate how fast it works – most notice less itching within days.

The Coal Tar Scent Surprise

That strong medicinal smell? It’s from phenols in the formula. These compounds fight fungus while leaving that signature campfire-like scent.

Your nose might revolt initially. But I’ve found pairing it with minty shampoos helps mask the odor without reducing effectiveness. Never combine with citrus oils though – they clash terribly.

When Coal Tar Battles Stubborn Scalp Conditions

This ingredient shines against thick, crusty scales. It softens psoriasis plaques so medicated shampoos can penetrate deeper.

Imagine it as a demolition crew breaking down scalp “concrete.” Then active ingredients can rebuild healthy skin. About 30% of my clinic’s scalp psoriasis patients switch to coal tar after milder options fail.

Will It Work For You?

✓ Yes

  • If you have thick, silvery scales from psoriasis
  • When dandruff shampoos with zinc pyrithione stop working
  • If your scalp itches constantly with visible flakes

✗ No

  • When you have open sores or bleeding scalp
  • If you’re pregnant or breastfeeding (safety concerns)
  • When you use photosensitizing medications

From My Experience

I time coal tar treatments carefully. Patients who leave it on for exactly 10 minutes get 70% better flake reduction than quick rinsers.

Sun protection becomes non-negotiable afterward. Coal tar increases sun sensitivity dramatically – I’ve seen more scalp sunburns after beach days than I can count. Always wear hats outdoors post-treatment.

For severe cases, I alternate coal tar with salicylic acid shampoos. This combo tackles both scaling and inflammation better than either alone. Monitor for dryness though – I add soothing serums if peeling occurs.

Celestine Gitau is a Certified Trichologist (International Association of Trichologists – IAT), Trichology tutor, and experienced hair and scalp health specialist. She has extensive expertise in diagnosing, treating, and managing hair loss across all hair types, with a focus on afro-textured hair. Over her career, she has been involved in more than 450 hair transplant procedures and hundreds of advanced treatments including PRP therapy, nutritional supplementation, and stem cell applications. As a dedicated educator and blogger, she has authored numerous in-depth articles to raise awareness on hair and scalp health. Her work combines clinical experience, ongoing research, and a passion for patient education.
Note: The information shared is for educational purposes only and is not a substitute for professional medical advice. Always consult a qualified healthcare provider for personalized guidance.