Kerasys Hair
KERASYS is one of Korea's most comprehensive professional haircare brands, with 223+ SKUs spanning shampoos, treatments, serums, hair packs, and scalp care-organized across the Advanced (ampoule-repair), Propolis (shine-and-bond), Argan Oil (lipid-restore), and Clinic (concern-targeted) lines. Whether you're dealing with chemical damage, scalp issues, or dryness, there's a KERASYS formula matched to that specific problem.
By Skinsli editorial Updated
Buying guide
KERASYS Hair: Navigating the Full Product Lineup
KERASYS offers one of the widest haircare ranges in Korean professional beauty-shampoos, treatments, packs, serums, scalp care, and bonding products across multiple sub-lines, each targeting a different hair concern. This guide maps out the key product families, explains what makes each one distinct, and helps you build a routine from KERASYS's broad catalog without guesswork.
How KERASYS Organizes Its Haircare
KERASYS products are organized into a handful of named families, each with a distinct approach:
- Advanced: ampoule-concentrate repair formulas targeting serious strand damage. The 10X Repair Ampoule is the brand's most intensive product.
- Propolis: shine-focused bonding care built around propolis extract-antioxidant, film-forming, and protective. Covers shampoo, treatment, and no-wash formats.
- Argan Oil: lipid-restore range for dry, coarse, or porous hair. Serum and treatment formats.
- Clinic: concern-targeted care with sub-lines for scalp, damage, moisture, and volume.
Each family is designed to work internally-shampoo + treatment within the same family gives the most cohesive ingredient approach. Cross-family combinations work too (e.g., Propolis shampoo + Argan Oil treatment) if your hair has multiple needs.
Advanced Ampoule Line: Maximum Repair
The KERASYS Advanced range is built around ampoule-concentrate delivery-formulas with significantly higher active concentrations than standard conditioning products. Key products:
- Advanced 10X Repair Ampoule Hair Pack: available in 150 ml, 300 ml, and 1000 ml. The 10X designation refers to the repair active concentration relative to standard formulas. Used as a weekly intensive mask, applied after shampooing with 10-15 minutes contact time (heat cap recommended). Targets mid-shaft breakage, bleach-related porosity, and elasticity loss.
- Advanced Repair Ampoule Water Hair Treatment 220 ml: a lighter ampoule format applied as a rinse-out treatment after shampooing. Shorter contact time than the pack-2 - 3 minutes-making it suitable for regular wash sessions rather than just weekly intensive treatments.
- Advanced Keramide Rich Hair Serum 70 ml: leave-in serum applied to damp or dry hair. Ceramide supports the lipid barrier between cuticle cells, reducing moisture loss between washes. Applied to lengths and ends after towel-drying.
Propolis Line: Bonding, Shine, and Protective Care
The KERASYS Propolis line uses propolis extract-a resinous bee compound with antioxidant, antimicrobial, and film-forming properties-as its main active. Film-forming means propolis leaves a thin flexible layer on the hair shaft that adds shine, reduces static, and provides mild protection against heat and environmental stress.
- Propolis Hair Care Shampoo 1000 ml: gentle propolis-infused shampoo suitable for daily use across hair types. The 1000 ml size reflects its intended role as a household staple.
- Propolis Hair Bonding Nowash Treatment 200 ml: leave-in no-rinse treatment that strengthens the hair's internal bond structure (similar concept to bond-building products). Applied to damp hair after washing, not rinsed. Particularly useful for heat-styled hair as it provides a pre-styling protective layer.
- Propolis Hair Root Care Treatment 1000 ml: a scalp-and-root focused conditioning treatment that applies propolis benefits specifically to the hair at and near the scalp-addresses thinning, scalp buildup, and root fragility in a single step.
Argan Oil Line: Lipid Restoration for Dry and Coarse Hair
The KERASYS Argan Oil line is built around argan oil's lipid profile-high in oleic and linoleic acids and vitamin E, with molecules small enough to partially penetrate the cuticle rather than just coat the surface. This makes it effective for hair types that absorb conditioning quickly and still feel dry:
- Argan Oil Hair Serum 100 ml: leave-in styling serum applied to damp or dry hair to seal the cuticle, add shine, and control frizz. A few drops worked through the mid-shaft and ends is sufficient for most hair lengths. Use before heat styling for thermal protection or after styling to smooth flyaways.
- Argan Oil Hair Treatment 1000 ml: rinse-out conditioning treatment applied after shampooing. The large format reflects its role as a regular conditioning step-3 - 5 minutes contact time, cool water rinse.
Clinic Series: Targeting Specific Concerns
The KERASYS Clinic line covers four targeted concerns with matched shampoos and treatments: Scalp Clinic, Damage Clinic, Moisture Clinic, and Volume Clinic. Each sub-line is designed to address one specific hair or scalp problem rather than providing general conditioning. See the dedicated KERASYS Clinic guide for detailed information on each sub-line and how to match them to your specific situation.
The Clinic series works well as a foundation layer: use Clinic products for concern-addressing, then add a Propolis or Argan Oil product as a finishing or boosting step if your hair needs additional shine or moisture on top of the targeted repair.
Serums and Leave-In Treatments
KERASYS leave-in products include the Argan Oil Hair Serum and the Propolis Hair Bonding Nowash Treatment. These are applied to damp or towel-dried hair before air-drying or heat styling-they do not require rinsing. Leave-in products play a different role than rinse-out treatments:
- They remain on the hair through the day, providing ongoing protection rather than depositing actives that then wash off.
- They act as a thermal protection layer if you use a blow dryer or flat iron.
- They control frizz and flyaways on dry hair when applied in small amounts as a finishing step.
For fine hair: use minimal amounts (2-3 drops of serum, pea-sized amount of no-wash treatment). For thick or coarse hair: more product is needed for coverage and smoothing.
Building a KERASYS Hair Routine
A complete KERASYS routine has three to four steps:
- Cleanse: Propolis Shampoo or a Clinic shampoo matched to your scalp concern.
- Condition/Treat: Argan Oil Treatment, Propolis Root Care Treatment, Damage Clinic Treatment, or Moisture Clinic Treatment-applied mid-shaft to ends for 2-5 minutes.
- Weekly Intensive: Advanced 10X Hair Pack or Ampoule Treatment instead of the standard conditioner on one wash day per week for deeper repair.
- Leave-in/Finishing: Argan Oil Serum or Propolis No-Wash Treatment applied to damp hair before drying, for ongoing protection and frizz control.
Not every step needs a KERASYS product-add or subtract based on your hair's actual needs. Start with the concern that bothers you most and build from there.
Getting the Best Value from KERASYS Sizes
KERASYS products come in a wide range of sizes, from 70 ml serums to 1000 ml treatment bottles. The economics:
- Serums (70-100 ml): last 2-3 months with daily use-the small size is appropriate because serums are used in drops rather than tablespoons.
- Standard treatments (150-300 ml): trial and confirmation size; roughly 25-40 washes per bottle.
- Large treatments (1000 ml): once you have confirmed a formula, the large size delivers significantly better per-wash cost. At 3 washes per week, a 1000 ml treatment lasts 3-4 months for one person.
Recommendation: try a 150-300 ml size first for any new formula. Once confirmed, move to the 1000 ml for the best long-term value.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
What types of KERASYS hair products are available on skinsli?
Skinsli carries the full KERASYS haircare range: shampoos, rinse-out treatments, intensive hair packs, ampoule treatments, leave-in serums, scalp-targeted products, and no-wash bonding treatments. Products span four main lines-Advanced (ampoule-based damage repair), Propolis (bonding and shine), Argan Oil (lipid restoration), and Clinic (concern-specific scalp and strand care)-covering 223+ SKUs in formats from 70 ml serums to 1000 ml salon-size bottles.
What does "10X" mean on the KERASYS Advanced 10X Repair Ampoule Hair Pack?
The 10X designation refers to the repair active concentration relative to standard KERASYS conditioning products-the ampoule pack contains approximately ten times the concentration of the key repair actives. This higher loading makes it effective for severely damaged hair but also means it should be used as an intensive weekly treatment (not a daily rinse-out conditioner). Leave on for 10-15 minutes with a heat cap for maximum penetration.
How do I use the KERASYS Propolis Hair Bonding Nowash Treatment?
Apply to towel-dried or damp hair after shampooing and conditioning-no rinsing needed. Work a small amount (pea-sized for fine hair, larger for thick hair) through mid-lengths and ends. Style or air-dry as usual. The no-wash formula builds the hair's internal bond structure progressively with each use and also acts as a heat protectant if you blow-dry or use a flat iron. Use daily or at every wash for best results.
When should I apply the KERASYS Argan Oil Hair Serum-before or after styling?
Both. Applied to damp hair before blow-drying, it provides thermal protection and seals the cuticle as the hair dries. Applied to dry, styled hair, it smooths flyaways and adds shine. For blow-drying, use 2-3 drops worked through the mid-shaft and ends before using the dryer. For dry hair finishing, a single drop rubbed on the palms and smoothed over the surface of styled hair is typically sufficient-using more on dry hair can make it look greasy.
My hair is bleached and breaking. Which KERASYS line should I use?
Start with the Advanced line. The Advanced 10X Repair Ampoule Hair Pack used weekly (with heat cap for 15 minutes) is the most intensive repair option in the KERASYS range. Pair it with the Propolis Bonding No-Wash Treatment applied daily after washing to rebuild the hair's internal bond structure between wash sessions. If your scalp is fine (only the strands are damaged), you can use any gentle shampoo as the cleanse step.
What is the KERASYS Propolis Hair Root Care Treatment used for?
The Root Care Treatment is designed for the scalp and hair roots-it addresses thinning at the hairline, scalp buildup, and root fragility. Apply to the scalp and root area (not the mid-shaft or ends) after shampooing, leave for the indicated time, and rinse. It is not a standard conditioning treatment for the lengths-use a separate conditioner on the ends if needed. The propolis extract in this formula provides antimicrobial and antioxidant support at the scalp level.
What does ceramide in the KERASYS Advanced Keramide Rich Hair Serum do?
Ceramides are lipid molecules that form the "mortar" between cuticle cells, holding the hair structure together and preventing water from escaping. Hair damaged by heat or chemicals loses ceramide content, which leads to dryness, porosity, and breakage. The Keramide Rich Hair Serum replenishes this lipid layer, reducing moisture loss between washes and making hair feel softer and more elastic over time. Apply as a leave-in to damp hair from mid-shaft to ends.
Which KERASYS products are safe for color-treated hair?
The Argan Oil line, Propolis line (except the clarifying formats), and the Damage Clinic and Moisture Clinic treatments are all safe for color-treated hair. The Argan Oil and Propolis treatments can actually help extend color vibrancy by smoothing the cuticle that retains color pigments. Avoid strong clarifying products on freshly colored hair. Rinse all treatments with cool water to close the cuticle and lock color in.
Are KERASYS products on skinsli authentic Korean formulations?
Yes. Skinsli sources KERASYS products from Korean supply channels. These are the same formulations sold in Korean pharmacies and salons-not reformulated international versions. KERASYS has strong distribution controls through its parent AmorePacific Group, and skinsli sources only through authorized supply.
Is the 1000 ml size worth buying, or should I stick to smaller formats?
The 1000 ml size is best once you have confirmed a formula works for your hair. At 3 wash sessions per week for one person, a 1000 ml treatment bottle lasts about 3-4 months-delivering significantly better per-wash cost than the 300 ml. If you are trying a new formula or unsure about it, start with the 150-300 ml. The Advanced Hair Packs are available in 150 ml, 300 ml, and 1000 ml specifically to allow this progression.