KERASYS Ampoules

In Korean skin care, ampoules are highly concentrated serums used in small amounts. KERASYS applies this concept to hair care shampoos and treatments by using a higher concentration of active ingredients per gram than their standard lines. The bottles are large (600ml to 1000ml) since you still use shampoo in normal amounts, but the formula is meant to deliver a more potent active load per wash.

This is different from a leave-in ampoule or scalp ampoule product. The Advanced Ampoule line is entirely rinse-out (shampoo and treatment), not a serum or leave-in. The ampoule branding signals formula concentration rather than a small-vial format.

Advanced Repair Ampoule is the most widely available variant in this collection, with shampoos in 600ml, 750ml, and 1000ml sizes and treatments in 600ml and 1000ml. It targets hair that has been weakened by bleaching, perming, heat styling, or mechanical stress.

The concentrated repair formula aims to restore hair elasticity and reduce breakage over repeated use. The Repair Ampoule Treatment 1000ml is a practical choice for severely damaged hair since it provides enough volume for regular weekly use over several months. The 600ml shampoo and treatment are a good starting pair for first-time buyers who want to try the line without committing to the 1000ml size.

Advanced Volume Ampoule comes in shampoos in 600ml and 750ml sizes, and a treatment in 600ml. It is designed for fine, flat, or low-density hair that lacks fullness. The formula adds volume by lightly coating the hair shaft to thicken it without weighing it down.

Unlike repair formulas that focus on restoring damaged structure, volume formulas prioritize lightweight body. The Volume Ampoule Treatment 600ml is lighter than the Repair treatment, which is intentional for fine hair that clumps or goes flat when heavy conditioners are applied near the roots.

Advanced Moisture Ampoule includes a shampoo in 600ml and a treatment in 600ml. It targets dry hair that lacks softness, feels coarse, or experiences frizz. The moisture-focused formula uses humectants and emollients to replenish water content and seal the cuticle against humidity-driven frizz.

This is the most gentle variant for everyday cleansing of dry hair types that are not necessarily chemically damaged. If hair is both dry and significantly damaged from processing, some users start with Repair Ampoule and switch to Moisture Ampoule once the structural damage has improved over several months of consistent use.

Each variant has both a shampoo and a treatment designed to work as a pair. Using the same variant for both steps - for example, Repair shampoo with Repair treatment - reinforces the active ingredients across both steps of the wash routine. Using a repair shampoo with a volume treatment (or vice versa) is possible but reduces the targeted effect of either product.

Treatments are used two to three times per week. Apply to damp hair after rinsing out the shampoo, leave for two to three minutes, and rinse fully. For the Repair Ampoule Treatment 1000ml, a single bottle at this frequency lasts approximately three to four months for one person.

Repair Ampoule has the most size options. Shampoos come in 600ml, 750ml (Advanced Repair Ampoule Shampoo 750ml), and 1000ml (Advanced Repair Ampoule Shampoo 1000ml). Treatments come in 600ml and 1000ml. Volume and Moisture lines offer 600ml as standard, with Volume Shampoo also in 750ml.

For a household where one person is doing a repair routine, the 1000ml treatment paired with the 1000ml shampoo gives the best value and longest supply without repurchasing. For single users testing the Volume or Moisture line for the first time, the 600ml shampoo-and-treatment pair is a lower-commitment starting point.

Three primary hair concerns map to three variants. If your main problem is structural damage - bleaching, perming, heat styling, or breakage - Repair is the correct choice. If your hair is generally healthy but fine and flat, Volume builds body without repair ingredients you don't need. If hair feels dry, rough, or frizzy without major structural damage, Moisture is the most targeted pick.

Some hair types have overlapping concerns. Fine and damaged hair from chemical processing is a common example: Repair is usually the priority until the damage resolves, then a shift to Volume is reasonable. Dry and frizzy hair that is also damaged should use Repair first; Moisture alone won't address the structural gaps that cause the frizz in that case.

KERASYS positions the Advanced Ampoule line as a premium tier within its own portfolio, above the standard Damage Clinic and Volume Clinic lines. The ampoule naming and larger bottle formats target consumers who want a more concentrated product without moving to a professional-grade treatment.

In Korean drugstores and supermarkets, this line sits alongside similar concentrated-care shampoos from brands like Mise-en-scene and Elastine. The Advanced Ampoule line's main differentiator is the combination of a concentrated formula with the accessibility of a standard shampoo bottle size, removing the need for a separate booster or serum step.