this must be washed off?

No. It’s meant to be left on, like a toner. It is very slightly sticky when used at full strength- I dilute it 50% with purified water because it’s very concentrated & a little strong for my sensitive skin. When diluted it’s not sticky. I just mix half & half in a small cup, dip a cotton pad & swipe it on.

Does it have to be washed off daily? I have dreads, and can’t wash my hair for weeks at a time.

If you leave it in, your hair around the scalp area may look greasy but it won't feel greasy. It will feel coated. I leave it on for about 2 hours before washing my hair and I wash my hair with a dandruff shampoo. The dandruff shampoo. by itself, doesn't work half as well as using it in tandem with Dermazen.

Can I use this serum on my scalp during the day or will it make my hair oily?

It doesn’t make it oily feeling. It is more like hair gel looking when it dries. It would feel or look about if you had salt water in your hair after a day at the beach. If I need to wear it, I use it overnight and wash in the am. Or I brush it to slick it back into a ponytail. But no, oily isn’t the word. And remember it only goes on the scalp, you don’t need it to go all the way down your hair.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Overnight Calming Serum for Flaky, Itchy Scalp & Skin 8oz

Product ID: 489700793

Details

Product Benefits
Hydrating
Scent
Tea Tree and
Skin Type
Flaky itchy &
Special Ingredients
Aloe Acid B3
Use for
Face Whole

🌿Steroid & paraben-free formula

💧Deep hydration with hyaluronic acid

🧪92% clinical efficacy

¥29025

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Description

🌙 Wake up flake-free and fearless with Dermazen Overnight Calming Serum!

MULTI ZONE CARE - One serum for scalp, face, beard, and body—target all your itchy, flaky spots effortlessly.
CLEAN GENTLE FORMULA - Steroid-free, sulfate-free, and paraben-free for safe daily use—even on color-treated hair.
CLINICALLY PROVEN CALM - 92% of users report a flake-free, soothed scalp—science-backed relief you can trust.
HYDRATE NOURISH DEEPLY - Infused with hyaluronic acid and Dead Sea salt to restore moisture and balance skin barrier overnight.
DERMATOLOGIST TESTED CONFIDENCE - Formulated for sensitive, reactive skin with powerful natural actives like niacinamide and MSM.

Dermazen Overnight Calming Serum is a dermatologist-tested, steroid-free treatment clinically shown to reduce visible flaking and soothe itchy, irritated skin. Featuring a potent blend of Dead Sea salt, niacinamide, hyaluronic acid, and MSM, this multi-use serum hydrates and calms sensitive scalp, face, and body areas. Safe for daily use on reactive and color-treated skin, it delivers deep, lasting relief from seborrheic dermatitis symptoms.

Specifications

ASIN	B0B8TB9VV4
ASIN	B0B8TB9VV4
Active Ingredients	Purified water, sea salt, colloidal silver, xylitol, methylsulfonylmethane (MSM), urea, niacinamide (vitamin B3), hyaluronic acid, 200x aloe vera, grapefruit seed extract, tea tree (melaleuca alternifolia) essential oil, rosemary (rosmarinus officinalis) essential oil
Best Sellers Rank	#15,613 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #336 in Facial Serums
Brand Name	Dermazen
Customer Reviews	4.1 4.1 out of 5 stars (908)
Item Form	Drop
Item Highlight	Steroid-free, Clinically Tested, Reduce Visible Flaking, Soothe Itch & Irritation for Seborrheic Dermatitis-Prone Skin Types
Item Weight	8 ounces
Manufacturer	Dermazen
Manufacturer	Dermazen
Material Features	Natural
Material Type Free	Paraben Free, Phthalate Free, Sodium Lauryl Sulfate Free, Steroid Free, Sulfate Free
Number of Items	1
Package Dimensions	8 x 5 x 4 inches; 8 ounces
Package Size Name	8 fl oz
Product Benefits	Hydrating, Nourishing, Soothing
Recommended Uses For Product	Malassezia/seb-derm-prone routine, leave-on treatment for flaky, itchy skin, scalp/face/body
Scent Name	Tea Tree and Rosemary
Skin Type	Flaky, itchy, sensitive, Sensitive, scalp, face & body
Special Ingredients	Aloe, Hyaluronic Acid, Vitamin B3 Niacinamide
Target Use Body Part	Face, Whole Body
UPC	643950248483
UPC	643950248483
Unit Count	8 Fluid Ounces

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.