DermaHarmony
2% Pyrithione Zinc Castile Soap (Liquid)
2% Pyrithione Zinc Castile Soap (Liquid)
4.92 / 5.0
(13) 13 total reviews
Couldn't load pickup availability
NOTE 08/24/2026: This product will become available by 09/15/2026 in the 64 Fl Oz size. The 12 Fl Oz size will come online before 11/15/2026. The label is being updated.
ABOUT THIS PRODUCT
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.
SIZES
4 FL OZ (118 ML)
10 FL OZ (296 ML)
64 FL OZ (1.89 L)
DIRECTIONS
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).
USE AS SHAMPOO
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.
ACTIVE INGREDIENTS
2% Pyrithione Zinc
INACTIVE INGREDIENTS
Water, Saponified Oils (from Olive and Coconut Oil), Glycerin (from Vegetable Oil), 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.
OTHER INFORMATION
Made in the USA.
Uwihin 30 months of purchase.
It is safe to use this product in your hair in substitute of regular shampoo.

Share

- 5 stars: 12 (92%)
- 4 stars: 1 (8%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
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!
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.
just started using it and my little eczema spots are fading!
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.
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.
This helped resolve patchy scaly satuff on my skin. I use it regularly now.
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.
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.
Unfortunately my bottle came and keeps separating. It looks kind of gross and I don't know if it's okay to use. I really liked the bar version's effectiveness, but was looking for something easier to use that wouldn't eventually dry up like the bar does for me. Still better than Nobel's formula in my opinion.
The only thing that actually takes care of my husbands dandruff.
I use this wash every a.m. and let it sit on my face while I brush my teeth and then rinse it off. I use it with SD cream (at night only) and the two products have eliminated my SD symptoms! Highly recommend!
I don't notice a difference in my skin or scalp.
I can't say enough good things about this product!!! I am a long-time adult acne sufferer and have tried countless products over the years, but nothing has ever worked well before. A few months ago I had a breakthrough and started thinking of my acne as more of a psoriasis problem. Since then I have made a little more headway, but the breakouts continued. I was really afraid to order this because my skin is so sensitive to oil. (Anything that is not oil-free makes me break out almost immediately.) The fact that this is castile soap (containing oil) really worried me, but you know what they say... insanity is doing the same thing over and over again and expecting a different result. I was so desperate, I took a chance... and I am SO GLAD I DID. Thank you to all the people who took time to review this product because it was those reviews that convinced me to try it. Btw, most acne products are NOT good for you OR your skin-- they have lots of nasty/dangerous ingredients. That is another reason why I chose to try this-- I went on EWG.org's Skin Deep Cosmetics Database and was thrilled by how the ingredients scored (LOW toxicity!!!). Thank you, thank you, THANK YOU DermaHarmony for making this product and selling it on Amazon!!!! :) (I'm not a professional reviewer, just a very, very happy customer.)