Tarsum Psoriasis Shampoo, Coal-Tar Leave-In Gel 8 oz — Exfoliating Relief for Flaky, Itchy Scalp

Tarsum Extra Strength Psoriasis Shampoo is an 8 oz coal-tar leave-in shampoo and conditioner designed to exfoliate flaky scalp skin and soothe irritation while you wash.

This concentrated gel formula combines liquor carbonis distillate (coal tar) with beta hydroxy acid to help reduce visible flakes and loosen plaque so the scalp can renew. Use it as a pre-shower leave-on treatment for 5–60 minutes or as a gentle daily wash to help manage severe dandruff, seborrheic dermatitis, psoriasis-related scaling, and dry, itchy scalp concerns. The product is formulated to rinse clean and also functions as a conditioning treatment that helps lock in moisture.

How should I use Tarsum for best results?

Apply Tarsum to a dry scalp before showering to let active ingredients penetrate thicker plaques, or use it on wet hair for a milder effect. Leave it on between 5 minutes and 1 hour depending on your comfort level, then lather and rinse; regular use helps control flaking and supports softer scalp skin.

• Use 5–60 minutes as a leave-in before shampooing.
• For everyday maintenance, apply to wet hair, lather, then rinse.
• Follow with a gentle conditioner if needed to retain moisture.

What are the active ingredients and how do they work?

Tarsum combines 10% liquor carbonis distillate (coal tar) with beta hydroxy acid to address excess dead skin and scaling. Coal tar helps reduce visible flaking, while the beta hydroxy ingredient exfoliates and aids in loosening plaque so the scalp surface can regenerate more easily.

• 10% coal tar (liquor carbonis distillate) for flake control.
• Beta hydroxy acid for gentle chemical exfoliation.
• Gel base that rinses clean and conditions the scalp.

Is Tarsum safe for sensitive scalps and colored hair?

Tarsum is formulated to soothe itchy, dry scalp skin and reduce redness linked to scaling conditions; however, individual sensitivity varies. Do a patch test before first use and avoid contact with broken or severely irritated skin. If you color your hair, test a small section first, as coal-tar products can alter some hair dyes.

• Patch-test 24–48 hours before regular use.
• Avoid application to open wounds or severely cracked skin.
• Test color safety if you have recently dyed hair.

How will I know when it’s helping?

Expect to notice reduced visible flaking and less loose plaque after several applications, with scalp comfort improving over weeks of consistent use. Because formulations work differently for everyone, track changes in itch frequency, flake volume, and scalp texture to determine effectiveness.

• Fewer loose flakes on brush and pillow within days to weeks.
• Improved scalp texture and reduced tightness over time.
• Adjust leave-on time and frequency based on comfort and results.

Who is this for: Tarsum Extra Strength Psoriasis Shampoo is intended for adults with persistent flaky scalp conditions such as severe dandruff, psoriasis-related plaque, seborrheic dermatitis, or chronic dry, itchy scalp who are seeking a targeted coal-tar treatment. It is suited for people willing to use a leave-in treatment and follow directions for a chemical exfoliant; those with very sensitive skin, open sores, or who are pregnant should consult a healthcare professional before starting strong medicated scalp therapies.

Ingredients

Contains coal tar and a medicated shampoo base with salicylic acid and surfactants to cleanse and treat the scalp.