Kerasys Treatment
KERASYS Treatment is the brand's deepest conditioning step-89+ SKUs covering the full spectrum from quick-rinse conditioners to intensive ampoule masks, organized by concern (Damage Clinic, Moisture Clinic, Volume Clinic, Scalp Clinic) and premium ingredient (Propolis, Royal Propolis, Argan Oil). Sizes range from 250 ml up to 1 L, with the 1000 ml formats offering salon-level value per wash.
By Skinsli editorial Updated
Buying guide
KERASYS Hair Treatments: Choosing and Using the Right Formula
KERASYS Hair Treatment is a broad category covering everything from rinse-out conditioners applied for two minutes to intensive ampoule masks left on for ten. With 89+ SKUs across multiple sub-lines, picking the right product requires understanding which concern you are treating, what format matches your hair's needs, and how intensive a treatment your hair can absorb. This guide walks through each major product family and how to use them.
Types of KERASYS Treatments and How They Differ
KERASYS treatments span a broad intensity spectrum:
- Standard Treatment (conditioner-weight): applied after shampooing, left for 2-3 minutes, rinsed. The Moisture Clinic Treatment 250/300 ml and Damage Clinic Treatment 300 ml fall here. These are the conditioning step in a regular wash routine.
- Ampoule Treatment: higher active concentration, typically applied for 5-10 minutes and may require a heat cap for best penetration. The Advanced Repair Ampoule Treatment 1000 ml and Advanced Moisture Ampoule Treatment 600 ml are in this category. Used 1-2 times per week rather than at every wash.
- Propolis/Royal Propolis Treatments: premium-ingredient conditioning treatments in large formats (1 L). Designed for regular use as the primary conditioning step. The royal version has a higher concentration of propolis extract.
As a rule of thumb: standard treatments for every-wash conditioning; ampoule treatments for weekly intensive repair sessions.
Clinic Series Treatments: Damage, Moisture, Volume, Scalp
The Clinic series treatments match the KERASYS Clinic shampoos by concern:
- Damage Clinic Treatment 300 ml: protein-rich conditioning for structurally damaged hair from bleaching, chemical processing, or heat. Repairs the cuticle surface and reduces breakage at each wash.
- Moisture Clinic Treatment 250/300 ml: humectant-forward formula for naturally dry or dehydrated hair. Focuses on water retention rather than protein rebuilding.
- Volume Clinic Treatment 300 ml: lighter conditioning formula designed not to flatten fine hair. Uses lightweight polymers rather than heavy emollients, so hair retains body after drying.
If you use a Clinic shampoo, use the matching Clinic treatment for the same session-the formulas are designed to work in sequence within each concern pillar.
Propolis Shine and Royal Propolis Green Treatments
Propolis is a resinous compound produced by bees, used in cosmetics for its antioxidant, antimicrobial, and film-forming properties. In haircare, propolis extract coats the hair shaft, adds shine, and provides mild protection against environmental damage. KERASYS offers two propolis treatment grades:
- Propolis Shine Treatment 1 L: standard propolis concentration, suitable for daily or every-other-day use as the main conditioning step. The 1 L size reflects that this is a regular-use product, not an occasional treatment.
- Royal Propolis Green Treatment 1000 ml: higher propolis concentration, positioned as a premium regular treatment. The green color comes from the royal propolis extract level rather than added colorant. Better for hair that wants more antioxidant and shine-building support.
Both formats rinse clean without heavy residue, making them suitable for hair that reacts poorly to silicone-heavy conditioners.
Argan Oil Hair Treatment 1000 ml
The Argan Oil treatment uses argan oil (high in oleic acid and vitamin E) as its key emollient. Argan oil molecules are small enough to penetrate the hair cuticle partially in addition to coating the surface, making it more effective at softening coarse or thick hair than surface-only conditioning agents.
Key use cases:
- Thick, coarse, or high-porosity hair that absorbs conditioning products quickly and still feels dry.
- Frizz-prone hair that needs a heavier lipid loading to stay smooth in humidity.
- Post-bleach hair that has lost its natural lipid content.
Apply from mid-shaft to ends, leave for 3-5 minutes, and rinse. The 1000 ml size reflects its use as a regular conditioning step rather than an occasional mask.
Advanced Ampoule Treatments: Repair and Moisture
The Advanced Repair Ampoule Treatment (1000 ml) and Advanced Moisture Ampoule Treatment (600 ml) are KERASYS's highest-intensity format. Ampoule treatments use a higher active concentration and a penetration-enhancing formula that responds to heat-applying with a shower cap and warm towel or heat cap for 10-15 minutes improves ingredient absorption compared to a quick rinse-off application.
How to use:
- Shampoo and lightly towel-dry hair.
- Apply ampoule treatment generously from roots to ends (or mid-shaft to ends for oily scalps).
- Cover with a shower cap or wrap in a warm towel.
- Leave for 10-15 minutes.
- Rinse thoroughly with cool water.
Use once or twice per week rather than at every wash. Overuse of intensive treatments can over-soften hair and reduce its elasticity. Repair Ampoule is for structurally damaged hair; Moisture Ampoule for dehydrated hair that is not chemically damaged.
Treatment Sizes: From 250 ml to 1 L
KERASYS treatments come in a range of formats:
- 250-300 ml: Clinic series treatments. These are standard conditioning sizes-good for first-time buyers or single users who rotate products. Roughly 25-40 washes per bottle for shoulder-length hair.
- 600-1000 ml: Ampoule and premium-ingredient treatments. The large size reflects these products' intended role as regular conditioning steps used consistently over months. Better per-wash cost for confirmed favorites.
For a first purchase in a new concern series, start with the 300 ml. Move to the 1 L once you have confirmed the formula matches your hair's response.
How to Work Treatments Into Your Wash Routine
Standard treatments fit between shampooing and rinsing: shampoo → rinse → treatment → 2-3 minutes → cool water rinse. Ampoule treatments require more time-plan for a 15-20 minute shower or a pre-shower application.
Practical tips:
- Apply treatment to damp (not soaking-wet) hair-excess water dilutes the formula before it can absorb.
- Focus on the areas where your hair is most damaged or dry-usually mid-shaft and ends. Avoid scalp application unless your product is specifically designed for it (most conditioning treatments are not).
- End with a cold-water rinse to close the cuticle after conditioning-this locks in what you've applied and improves shine.
- Towel-press (don't rub) after rinsing. Wet, conditioned hair is at its most elastic and most vulnerable to mechanical breakage.
Volume Clinic Treatment: For Fine Hair That Needs Conditioning Without Limpness
Fine hair often skips conditioning treatment altogether because conventional conditioners flatten it. The KERASYS Volume Clinic Treatment addresses this by using lightweight, cationic polymers that provide the cuticle-smoothing and static-reduction benefits of conditioning without the heavy emollient load that makes fine hair go limp after drying.
Apply sparingly-fine hair saturates quickly-and focus on the mid-lengths and ends. Rinse thoroughly. The result is hair with more body and less flyaway than conditioned-with-nothing, but without the limp, weighted feeling from a standard heavy conditioner.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
What is the difference between a KERASYS Treatment and a regular conditioner?
Standard conditioners are designed for quick rinse-off application-30 seconds to 2 minutes. KERASYS Treatments, especially the Clinic and Ampoule formats, use higher concentrations of active ingredients and require 3-15 minutes of contact time to be effective. Treatments also target specific concerns (damage, moisture, volume) with dedicated formulas rather than providing generic conditioning. For everyday use, the standard Clinic treatments work fine; for weekly intensive care, the Ampoule formats go deeper.
How often should I use the KERASYS Advanced Ampoule Treatment?
Once or twice per week is the recommended frequency for ampoule treatments. Using them at every wash can over-soften hair and reduce its elasticity over time. A typical routine: regular Clinic or Propolis treatment on regular wash days, ampoule treatment 1-2 times per week as a more intensive session. If your hair is severely damaged, you can use the ampoule treatment every wash for the first 4 weeks, then reduce to once weekly for maintenance.
What does propolis actually do for hair?
Propolis is a resinous compound made by bees that has antioxidant, antimicrobial, and film-forming properties. In hair treatments, it coats the hair shaft with a thin protective layer that adds shine, reduces static, and provides mild environmental protection. It is not as heavy as silicone-based conditioners and rinses cleaner, making it a good option for people who want shine and protection without product buildup. The Royal Propolis Green Treatment has a higher propolis concentration for more pronounced results.
Is the KERASYS Argan Oil Treatment good for very thick or coarse hair?
Yes-argan oil is one of the better lipid choices for thick and coarse hair because it is rich in oleic acid, which penetrates the cuticle more effectively than purely surface-coating ingredients. Thick hair often has high porosity from physical wear and absorbs conditioning products quickly. Apply the Argan Oil Treatment generously, leave for 3-5 minutes, and follow with a cool rinse to seal the cuticle. Regular use (2-3 times per week) noticeably reduces coarseness and frizz over 4-6 weeks.
Can fine hair use any KERASYS treatment without going limp?
Yes-use the Volume Clinic Treatment, which is specifically formulated for fine hair. It uses lightweight polymers instead of heavy emollients so it conditions without flattening. Apply a small amount from mid-shaft to ends only (not on the scalp or roots), and rinse thoroughly. Avoid the Argan Oil or Propolis treatments for fine hair-their heavier lipid content tends to weigh fine hair down, especially at the roots.
Do I need a heat cap to use the KERASYS Ampoule Treatment?
A heat cap improves results but is not required. The heat opens the cuticle slightly, which improves active ingredient penetration. Without heat, the ampoule still works-just allow 15 minutes of contact time rather than 10. If you do not have a heat cap, a hot damp towel wrapped around a shower cap achieves a similar effect. The main point is longer contact time than a standard treatment, regardless of whether heat is applied.
Should I apply KERASYS treatments to my scalp?
For most KERASYS treatments (Damage Clinic, Moisture Clinic, Argan Oil, Propolis), apply from mid-shaft to ends only-not to the scalp. Heavy conditioning formulas on the scalp can clog follicles, cause product buildup, and make the scalp oily faster. The exception is the Scalp Clinic products, which are specifically formulated for scalp application. If your scalp is dry, use a scalp-specific treatment rather than a general conditioner on it.
Is the KERASYS Damage Clinic Treatment strong enough for heavily bleached hair?
The Damage Clinic Treatment is effective for moderately damaged hair. For heavily bleached or multiple-process hair, the Advanced Repair Ampoule Treatment is the stronger option-its higher active concentration and longer contact time provide more intensive repair per session. For the most severely damaged hair, use the Ampoule Treatment twice weekly and the standard Damage Clinic Treatment on other wash days. Consider pairing with a bond-repair treatment (like Olaplex-type products) if bleach damage is extreme.
How quickly will I see results from KERASYS treatment use?
Immediate improvement (softer, more manageable hair after the first use) is typical for most KERASYS treatments-this reflects the surface-coating and cuticle-smoothing effect. Deeper structural improvement (stronger hair, less breakage, reduced porosity) takes 4-8 weeks of consistent use because these changes require multiple growth cycles to appear in the full length of the hair. Ampoule treatments show the fastest improvement given their higher active concentration.
Are the 1 L KERASYS treatment bottles subject to extra shipping fees?
Large-format bottles (1 L) are heavier and may be subject to additional handling fees due to weight and packaging requirements for liquids. Shipping costs are calculated at checkout based on the order weight. Standard delivery to US addresses takes 5-10 business days. For orders with multiple large-format bottles, express shipping may be a better value relative to extended standard delivery times.















