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🩺 Health2025-10-13

The Great Shampoo Experiment (Selsun Blue vs. Nizoral)

I bought both. Selsun Blue is the brute force option. Nizoral is the smart play. I use Nizoral 2x/week and regular shampoo the rest of the time.

What I Bought

Selsun Blue Medicated Maximum Strength (Selenium Sulfide)

$8.474.5 (🔥)

32,456 reviews

Pros

  • +Maximum strength — it means business
  • +Selenium sulfide attacks dandruff at the source
  • +Cheap — $8 for 11oz
  • +Available everywhere

Cons

  • -Smells like a chemistry lab
  • -Can dry out your hair if overused
  • -The blue color stains everything it touches
View on Amazon
What I Should Have Bought

Nizoral Anti-Dandruff Shampoo (Ketoconazole 1%)

$15.994.6 (🔥)

78,432 reviews

Pros

  • +Ketoconazole — dermatologist recommended
  • +78,000 reviews — a dandruff-fighting army
  • +Only need to use 2x per week
  • +Doesn't smell like industrial cleaner
  • +Works on the fungus that actually causes dandruff

Cons

  • -Almost 2x the price per ounce
  • -Smaller bottle (7 oz vs 11 oz)
  • -You're now a person who researches shampoo
View on Amazon

The Story

I bought Selsun Blue first because it was $8 and said 'Maximum Strength' on the label. I'm a simple man — I see 'maximum strength' and I buy it. It works. Your dandruff will cease to exist. But so will any joy associated with washing your hair, because it smells like a selenium mine and turns your shower blue.

Then I bought Nizoral because it kept showing up in every dermatologist recommendation list. 78,000 reviews. Ketoconazole targets the actual fungus that causes most dandruff. You only use it twice a week. It doesn't stain your shower.

Here's the plot twist: I now use both. Nizoral 2x/week as maintenance, Selsun Blue when things get serious. This is probably more research than most people do on their dandruff shampoo. It's definitely more research than I did on the Zelotes gaming mouse. Priorities.

The Lesson

Nizoral 2x/week is the dermatologist move. Selsun Blue is the nuclear option. Own both.

Affiliate Disclosure: Links on this page go to Amazon and include an affiliate tag. If you buy something, I earn a small commission at no extra cost to you. This is an honest comparison of products I've actually used.

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Glen's Musings — AI, investing, and building things. Occasional. Free.

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