Oserth
Oserth is a Korean care brand that spans more than just the bathroom shelf. The lineup here runs from rich hair treatment masks to baby moisture care and an antibacterial hand wash, so the collection reads more like a household routine than a single product family. We list 17+ Oserth products, with the treatment masks available in both 300ml everyday tubs and 1000ml salon-size jars.
By Skinsli editorial Updated
Buying guide
How to choose Oserth treatment masks and care products
Oserth is a Korean care brand, and the products we carry sit across a few different parts of a daily routine rather than one shelf. Most of the collection is hair treatment masks, but you will also find Soibebe baby skincare and a Medibubble antibacterial hand wash. This guide walks through what is actually in the grid so you can pick the right tub or bottle without guesswork.
What Oserth makes
Oserth is not a single-category brand. The bulk of what we list is hair treatment masks, sold under names like Silky Treatment Mask, Protein Volume Treatment Mask, Scalp Strengthening Treatment Mask, and Repair Treatment Mask. Alongside the hair line there is Soibebe, the baby-focused range that includes the Ultra Atocream and a Moisture Sunscreen, plus a Medibubble Antibacterial Hand Wash. If you came here expecting only facial skincare, that is worth knowing up front: this is a household care brand, not a face-routine brand.
The hair treatment masks
The hair masks are the heart of this collection. Each one targets a slightly different goal. The Silky Treatment Mask leans toward smoothing and softness. The Protein Volume Treatment Mask is aimed at hair that needs more body and structure. The Scalp Strengthening Treatment Mask works closer to the roots and scalp rather than just the lengths. The Repair Treatment Mask is the one to reach for after heat styling, colour, or general damage. Pick by the result you want rather than by the name alone, since several of them overlap in how they feel to use.
300ml everyday tubs vs 1000ml salon jars
Most of the treatment masks come in two sizes. The 300ml tub is the everyday size for one or two people at home. The 1000ml jar is the salon-size option, and it makes sense if you use a mask weekly, share a household, or simply do not want to reorder often. Per use, the larger jar is usually the better value, but the 300ml is the safer first buy if you have not tried the formula yet. The Soibebe Ultra Atocream comes in a 300g jar, and the Moisture Sunscreen in an 80ml tube.
Soibebe baby skincare
Soibebe is Oserth's baby-care line. The Ultra Atocream is a rich 300g moisturiser meant for dry, sensitive, or easily irritated skin, the kind of cream you reach for on cheeks, arms, and anywhere prone to roughness. The Moisture Sunscreen is an 80ml daily sun product sized for small faces and travel bags. Both are gentle enough for babies, which in practice also makes them a reasonable pick for adults with reactive or very dry skin.
Medibubble antibacterial hand wash
The Medibubble Antibacterial Hand Wash is the everyday-hygiene item in the range. It is a 500ml bottle built for frequent handwashing without leaving skin tight. If you go through hand wash quickly in a busy kitchen or bathroom, the 500ml size lasts a while before a refill.
How to use a hair treatment mask
A treatment mask is a deep-conditioning step, not a daily rinse-out conditioner. Shampoo first, squeeze out excess water, then work the mask through the mid-lengths and ends, keeping it off the scalp unless you are using the Scalp Strengthening version. Leave it on for a few minutes so it can soak in, then rinse well. Once or twice a week is plenty for most people; daily use can leave fine hair feeling heavy.
Matching a product to your hair and skin
If your hair feels dry and rough, start with the Silky or Repair mask. If it falls flat and lacks body, the Protein Volume mask is the better fit. If the issue is itchiness, flaking, or a weak feeling at the roots, the Scalp Strengthening mask targets that. For skin, the Soibebe Ultra Atocream suits very dry or sensitive types, and the Moisture Sunscreen covers daily sun for kids and gentle-formula seekers. You do not need every product here; pick the one or two that match your actual concern.
Korean sourcing and authenticity
Oserth is a Korean brand, and the products we list are the Korean-market versions. We buy and ship genuine stock rather than reformulated export variants, so the formula and packaging match what you would find in Korea. If you have used Oserth before through a Korean retailer, what arrives here should feel the same.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
What kind of products does Oserth make?
Oserth is a Korean care brand. Most of what we list is hair treatment masks, including the Silky, Protein Volume, Scalp Strengthening, and Repair masks. The range also covers Soibebe baby skincare, like the Ultra Atocream and Moisture Sunscreen, plus a Medibubble Antibacterial Hand Wash. It is a household care brand rather than a facial skincare line.
What is the difference between the Oserth treatment masks?
Each mask targets a different result. The Silky mask smooths and softens, the Protein Volume mask adds body to flat hair, the Scalp Strengthening mask works at the roots and scalp, and the Repair mask is for damage from heat, colour, or styling. Choose by the result you want rather than the name.
How do I use an Oserth hair treatment mask?
Shampoo first, squeeze out excess water, then work the mask through the mid-lengths and ends. Keep it off the scalp unless you are using the Scalp Strengthening version. Leave it on a few minutes, then rinse well. Once or twice a week is enough for most hair.
Should I buy the 300ml or the 1000ml mask?
The 300ml tub is the everyday size and the safer first buy if you have not tried the formula. The 1000ml salon jar is better value per use and makes sense if you mask weekly or share a household. If you are unsure, start with the 300ml.
Can adults use the Soibebe Ultra Atocream and sunscreen?
Yes. Soibebe is Oserth's baby line, so the Ultra Atocream and Moisture Sunscreen are formulated to be gentle. That also makes them a reasonable choice for adults with very dry or easily irritated skin who want a mild formula.
Are these genuine Korean Oserth products?
Yes. We list the Korean-market versions and ship genuine stock rather than reformulated export variants, so the formula and packaging match what you would find in Korea.