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2% Pyrithione Zinc Castile Soap (Liquid)

2% Pyrithione Zinc Castile Soap (Liquid)

13 total reviews

Regular price $9.49 USD
Regular price Sale price $9.49 USD
Sale Sold out
Shipping calculated at checkout.

[A new batch of this soap will be back in stock in 8-12 weeks.]


The Liquid Castile Soap version of our 2% Pyrithione Zinc Bar Soap can be used as a soap, shampoo, or shaving soap. This soap is registered with the FDA as an Over-the-Counter (OTC) Drug for treating seborrheic dermatitis and dandruff. This soap is an excellent cleanser for all types of skin and conditions.


4 FL OZ (118 ML), 10 FL OZ (296 ML), 64 FL OZ (1.89 L)


For best results use daily or as directed by your doctor. Work up a lather using warm water and gently massage into affected areas. Soap should stay in contact with affected skin for 60-90 seconds. Rinse well. Use on affected skin or scalp in place of your regular soap or shampoo. In case of accidental ingestion, contact a physician or poison control center immediately. Rinse with water if soap comes into contact with your eyes (the zinc pyrithione will sting).


Castile soap is strong enough to clean the scalp of excess sebum and product build up, but gentle enough to not leave our hair stripped and dry. Experiment using the soap at different dilutions (e.g. 2 teaspoons and one cup water, etc.) until you find the right dilution for you. Many customers use the soap at full strength. Castile Soap is NOT as color safe as sulfate free shampoos. Soaps tend to be alkaline which means that they can open the hair cuticle and remove hair dye quicker.


Water, Saponified Oils (from Olive and Coconut Oil), Glycerin (from Vegetable Oil), Zinc Pyrithione, Coco Glucoside (foaming agent derived from Coconut Oil and Fruit Sugar), Table Salt, Avena Sativa (Oat) Kernel Flour, Xanthan Gum, Citric Acid Made from responsibly sourced and sustainable natural oils.


Made in the USA.

Use within 30 months of purchase.

It is safe to use this product in your hair in substitute of regular shampoo.

Shown as the main image is the 4 fl oz bottle - this size comes with a disc cap. The 10 fl oz ships with a disc cap. The 10 fl oz bottle design was changed from a labeled bottle to a screen printed bottle in 11/2019.  The 1/2 gallon and gallons come in jugs - these larges sizes are used to refill smaller containers.  At this time the jugs do not ship with pumps (they were designed for refilling smaller bottles).  Photos are approximations and may not be up to date with the current lot numbers.


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Customer Reviews

Based on 13 reviews
Todd P

This stuff works so well, I searched for years for something to prevent my deep acne and this is the only thing that has worked. In the past I have used the bars of zinc soap but switched to the liquid and it works great too!

Sean Quinn
Only product that has worked after 10 years of searching

I’ve long suffered from seborrheic dermatitis and I’ve run the gamut of products to combat the condition to no avail. So much so, I’ve doubted the diagnosis of the condition and remained helpless to the flare ups for years.

Autumn Monterrozo

just started using it and my little eczema spots are fading!

We have tried everything

It’s been the only thing to work on my scalp and my husbands scalp. He uses it in his bread too and it helps his rosacea. We water down, two squirts into a small 2oz bottle. I have long hair and I do wash with another natural shampoo as Castile soap can leave a weird film. But it’s so worth it to not have a sore, itchy, dry scalp! Will reorder.

Works for my acne

I thought I was having hormonal acne breakouts on my chin and was frustrated that using benzyl peroxide wasn't helping. My dermatologist suggested I try this (apparently a large portion of adult acne is actually fungal and not bacterial/or both). Anyway, this seems to have done the trick. My active breakouts are gone and I'm not seeing any new ones. The only downside of this is it seems to burn my skin a little bc I have very sensitive skin, therefore I only use it on my chin, which is the area I experience acne.

Larry A Van Meter
Good, effective product

This is a truly effective product, but only when used in conjunction with other therapy. I'll use DermaHarmony about three days a week and Selenium Sulfide lotion (leave on for 20 minutes) the other days.

Solved my problem

This helped resolve patchy scaly satuff on my skin. I use it regularly now.