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Scientifically Driven
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Dermatologist Developed
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For All Hair Types
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Color Safe
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Cruelty Free -
Safe For Teens & Adults
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Scientifically Driven
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Dermatologist Developed
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For All Hair Types
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Color Safe
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Cruelty Free -
Safe For Teens & Adults
What it helps with
Relieves scalp itch, flaking, and dryness while soothing irritation from everyday sensitivity. In testing, 96% reported less scalp dryness, 89% reported less flaking, 97% reported shinier hair, and 95% reported less frizz.
Why it's different
A dermatologist-developed, salon-quality formula. No zinc pyrithione, sulfates, or parabens. Gentle on color and keratin (85% of users preferred it for color retention).
Ingredients that care for scalp + hair
• Hydrocortisone Acetate – soothes inflammation and itch
• Alp Rose – protects the natural barrier
• Willow Bark – clears debris
• Sea Whip – soothes sensitivity
• Allantoin – calms the scalp
Our 4-week promise
You'll notice a difference after just a few washes, with full results after 4 weeks of consistent use (minimum 3× per week): 96% reported less dryness, 89% reported less flaking, 97% reported shinier hair, and 95% reported less frizz.
Directions
Apply a quarter-sized amount of Step 1 to the top of the head and another to the sides of wet hair and scalp. Add water for more lather, massage into the scalp, and rinse thoroughly with warm water. Use daily when symptomatic, or at least 3× per week for maintenance. Follow with Step 2 conditioner.
Four steps to flake-free
Why HairSanity Sets a Higher Standard
This comparison shows how HairSanity does more than basic scalp shampoos.
With 1% Hydrocortisone Acetate, it helps target itch at the source, soothe irritation, and hydrate the scalp, without the harsh, drying tradeoffs often found in traditional dandruff shampoos.
What to expect after 4 weeks of consistent use?
Week 1: Your scalp starts to feel cared forEarly on, the goal is simple: calm the itch, cleanse gently, and start giving your scalp the kind of care it’s been asking for. Your hair should still feel soft, clean, and easy to manage, not stripped.
Week 2: The irritation may feel easier to manageWith regular use, scalp discomfort can start to feel less distracting. You may notice less dryness, fewer visible flakes, and a cleaner, more balanced feeling after wash day.
Week 3: Better scalp days start to feel more consistentThis is when steady use can begin to feel more noticeable. The itch may feel calmer, flakes may look less obvious, and your hair can feel smoother, more hydrated, and easier to style.
Week 4: Scalp relief meets better hair daysBy now, your scalp may feel more comfortable and your hair may look healthier, softer, and shinier. The kind of change that doesn’t feel dramatic overnight — but feels very real when you realize you’re thinking about your scalp less.
And the best part?
The longer you stay consistent, the easier it is to maintain calmer scalp days. Use HairSanity at least 3 times per week for best results.
Scalp care reimagined, for you.
We use clinically-proven, gently potent actives to get rid of itch and irritation.
Be flake free, but not at the cost to your locks. Hair Sanity won't strip your hair of its protective oils or dull your color. It's science, but prettier.
For you.
Scalp care can be self care too. Our medicated formulas are packed with botanicals to transform your routine into a moment of indulgence.
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Saw a Reduction in Flaking
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Reported Smoother, More Manageable Hair
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Noticed Shinier, Healthier-looking Hair
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Experienced Less Scalp Dryness
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Saw a Reduction in Flaking
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Reported Smoother, More Manageable Hair
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Noticed Shinier, Healthier-looking Hair
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Experienced Less Scalp Dryness
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Saw a Reduction in Flaking
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Reported Smoother, More Manageable Hair
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Noticed Shinier, Healthier-looking Hair
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Experienced Less Scalp Dryness
See the Difference
When scalp itch, flakes, dryness, or irritation have been around for too long, regular shampoo usually isn't enough. HairSanity gives your wash day a clearer job: calm the scalp, cleanse without stripping, and leave hair looking softer and easier to manage.
Before HairSanity
After 4 WeeksWhy HairSanity Sets a Higher Standard
This comparison shows how HairSanity does more than traditional medicated shampoos.
As the only shampoo with 1% Hydrocortisone Acetate, it directly targets itch, soothes irritation, and hydrates the scalp and hair. Other products target fungus only and leave the hair frizzy and brittle.
See Why HairSanity is a Favorite
Complete The Routine
Shop all
Formula Update In ProgressFrequently Asked Questions
Why did Dr. Kazin create HairSanity for her patients?
Throughout her career, Dr. Kazin was repeatedly approached by patients seeking to solve problems with dry or oily scalp, flaking and scalp itch.
How do I know HairSanity will improve my scalp and hair?
Over 700 people tested our two-step solution over 4 weeks with clear results: 96% of participants had a reduction in scalp dryness, 89% had a reduction in scalp flaking.
What active ingredients make HairSanity so safe and effective?
Step 1 of HairSanity contains hydrocortisone acetate, the #1 ingredient for itch and irritation used by dermatologists worldwide in skin and scalp care.
What makes HairSanity different from other products on the market?
Most drugstore products address the scalp with zinc pyrithione and many contain sulfates and parabens. We take a completely different approach and have eliminated zinc pyrithione, sulfates, and parabens.
How soon will I see and feel my healthier scalp and hair?
Most will see and feel results after a few washes, but the full effects are most noticeable after 4 weeks of consistent use at least 3 times per week.
Is HairSanity safe for sensitive skin?
By eliminating harsh surfactants, parabens, and allergenic preservatives, HairSanity can be used on sensitive skin and scalp.
How do I get the best results with HairSanity?
Simply apply a quarter-sized amount of HairSanity shampoo to the top of the head and another quarter-sized amount to the sides of wet hair and scalp.
Is HairSanity gentle on color and keratin?
HairSanity does not use harsh surfactants (cleansers) to clean the hair as many drugstore shampoos do. Harsh surfactants can prematurely strip color and keratin from the hair.
Once my scalp and hair look and feel great, do I continue with HairSanity?
Once HairSanity improves your scalp and hair, you can continue HairSanity to keep your scalp calm and flake-free. You'll also maintain your hydrated, frizz-free, healthy hair.
How often can I use HairSanity to get the best results?
We recommend using HairSanity every time you wash your hair — ideally at least 3 times per week.