Dandruff & Scalp HealthShampoo
Medicated Antidandruff Shampoo — Reddit Reviews
by Selsun Blue
Updated November 3, 2026
1% selenium sulfide clears stubborn dandruff fast; drying and unreliable for some scalps.
What the community says
A 1% selenium sulfide medicated shampoo for recurring dandruff, seborrheic dermatitis, and itchy scalps. It suits people needing a twice-weekly treatment rather than daily cleansing, though menthol, fragrance, and strong surfactants can leave hair brittle, frizzy, or irritated.
What this means for you
What people love
- 1% selenium sulfide; visible relief within one to several washes
- Strong track record for stubborn seborrheic dermatitis and scalp itch
Watch out for
Product details
Concerns
Where to buy
Real Reddit threads — 77 mentions across 25 threads
Selsun Blue Medicated Antidandruff Shampoo on Reddit, in one place — 25 threads from r/HaircareScience, r/tressless and 7 more, summarized.
“I have dermatitis so I NEED selsun blue and finding a good curling cream without silicones is a hassle”
Positive
“Minoxidil and whatever pick of anti-dandruff shampoo. I like selsun blue.”
Positive
“Both have been shown to reduce hair loss/encourage hair growth.”
Positive
“How often do you shampoo with selsun blue? I have seb derm too and do it 2x a week”
Mentioned
“Did you fry Selsun Blue? This is the only thing that works for me. And it works GOOD”
Positive
“what works with me is selsun blue, the red one.”
Positive
“It is good for itchy hair.”
Positive
“i've been using selsun blue shampoo regularly for about 2 years and its helped TREMENDOUSLY.”
Positive
“for the first time in my life i don't have dandruff.”
Positive
