Kerasys
KERASYS is the Korean salon-grade hair care brand from Aekyung, and this collection lists 270+ in-stock products across its clinic lines. The grid spans the Damage Clinic repair range, Scalp Clinic, Volume Clinic, the Advanced Keratin Bond deep treatment, the Moist shampoo, a perfumed Parfum line, and even at-home Oil Dyeing hair colour. Salon sizes like the 750ml conditioner and 600ml scalp conditioner sit next to travel-friendly 180ml and 300ml bottles.
By Skinsli editorial Updated
Buying guide
Picking the right KERASYS hair care
KERASYS is Aekyung's salon-grade hair brand, and the range splits into clinic lines that each target one job. Damage Clinic rebuilds stressed hair, Scalp Clinic works on the roots, Volume Clinic lifts flat hair, and the Keratin Bond treatment is the heavy-duty repair option. This collection also carries a perfumed Parfum line and an at-home Oil Dyeing kit. Here is how the lines differ and which one fits your hair.
What KERASYS is
KERASYS is a Korean hair care label made by Aekyung, one of Korea's larger personal-care companies. It sits in the salon-grade tier: richer conditioning agents and keratin-based repair than a basic drugstore shampoo, sold in the big pump bottles you see in Korean salons. The lineup is organised into named clinic ranges so you can match a product to a specific hair problem instead of guessing.
The clinic lines explained
The naming on a KERASYS bottle tells you its job. Damage Clinic is for dry, bleached, or heat-stressed hair that needs rebuilding. Scalp Clinic targets the roots and a flaky or oily scalp. Volume Clinic adds body to fine, flat hair. Each line runs as a cleanse, condition and weekly treatment step, so you can buy a matched set or mix lines to cover more than one concern at once.
Keratin Bond and deep repair
For hair that is past the point of a regular conditioner, the Advanced Keratin Bond Deep Repair Treatment 750ml is the strongest option here. Keratin is the protein hair is made of, and bond-repair treatments work to patch the internal damage left by bleach and heat. Use it in place of your normal conditioner once or twice a week, leaving it on the lengths for a few minutes. The Damage Clinic conditioner is the gentler everyday partner to it.
Scalp and volume care
Healthy hair starts at the scalp, and the Scalp Clinic Conditioner 600ml is built to soothe and clean the root area without weighing hair down. If your problem is limp, flat hair instead, the Volume Clinic Treatment 300ml conditions while keeping body in the strands. These two solve opposite problems, so pick by what bothers you most: an itchy or oily scalp, or hair that falls flat by midday.
Everyday moisture shampoos
Not every wash needs a clinical fix. The Shampoo Moist 750ml is the gentle daily cleanser of the range, good for normal-to-dry hair that just wants softness and slip. It pairs naturally with the Damage Clinic conditioner for a simple two-step routine. The big 750ml size makes it the value pick for a household or anyone who washes most days.
At-home hair colour
KERASYS also makes at-home colour, and the grid includes the High Adhesion Oil Dyeing Agent in shades like Dark Brown. Oil-based dyes tend to be gentler and more even than older cream formulas, and the conditioning base helps offset the dryness colouring usually causes. Follow it with a Damage Clinic or Keratin Bond treatment to keep freshly coloured hair from going brittle.
Choosing a size
KERASYS spans a wide size range in this collection. The 750ml shampoos and conditioners and the 600ml scalp conditioner are the salon-format value buys, built for daily washing or a shared bathroom. The smaller 180ml and 300ml bottles suit travel, a first trial of a clinic line, or keeping a second product for a specific concern. Buying the large size lowers the cost per wash on the products you reach for daily.
Genuine Korean stock
The KERASYS products in this collection are authentic Korean domestic stock from Aekyung, the formulas sold in Korea rather than an export relabel. Because the clinic range is broad and bottle sizes vary, the grid filters to what is genuinely in stock so the size and line you see are what ships. The core Damage Clinic and Moist shampoos are the lines we keep stocked most consistently.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
Which KERASYS clinic line should I choose?
Match the line to your main concern. Pick Damage Clinic for dry, bleached, or heat-damaged hair, Scalp Clinic for an oily or flaky scalp, and Volume Clinic for fine hair that falls flat. Each comes as shampoo, conditioner, and treatment in this grid, so you can run a matched set or combine lines if you have more than one issue.
What does the KERASYS Keratin Bond treatment do?
The Advanced Keratin Bond Deep Repair Treatment is the strongest repair product in the range. Keratin is the protein hair is built from, and bond treatments patch the internal damage left by bleach and heat. Use it instead of your normal conditioner once or twice a week, leaving it on the lengths for a few minutes before rinsing.
Is Scalp Clinic or Volume Clinic right for me?
They solve opposite problems. The Scalp Clinic Conditioner 600ml targets the root area for an itchy, oily, or flaky scalp without weighing hair down. The Volume Clinic Treatment 300ml is for limp, fine hair that needs body. If your scalp feels fine but your hair goes flat by midday, reach for Volume; if the discomfort is at the roots, choose Scalp.
How does the KERASYS oil-based hair dye work?
The High Adhesion Oil Dyeing Agent is an at-home colour in shades like Dark Brown. Oil-based dyes apply more evenly and tend to be gentler than older cream formulas, and the conditioning base offsets some of the dryness colouring causes. Follow the colour with a Damage Clinic or Keratin Bond treatment to keep the hair from turning brittle afterward.
Are the 750ml KERASYS bottles better value?
For a product you use daily, yes. The 750ml shampoos and conditioners and the 600ml scalp conditioner are the salon-size value buys and lower the cost per wash, which makes them ideal for a household or frequent washing. The 180ml and 300ml sizes are better for travel or trying a clinic line before committing to the big bottle.
How do I build a KERASYS wash routine?
Start with a shampoo that fits your hair, such as the Shampoo Moist for everyday softness or a clinic shampoo for a specific concern. Follow with the matching conditioner from the same line. Once or twice a week, swap the conditioner for the Keratin Bond or Damage Clinic treatment on the lengths. If your scalp needs attention, work the Scalp Clinic step in on wash days.
Is the KERASYS stock here genuine and made by Aekyung?
Yes. Everything here is genuine KERASYS made by Aekyung in Korea, the domestic retail version rather than an export relabel. The grid filters to live stock, so whatever size or clinic line shows as available is ready to ship. Damage Clinic and the Moist shampoo are the fastest movers, so they are back on the shelf soonest after a sell-out.