Shiseido 1S Straightener for Very Sansitized Hair 400g

Shiseido Crystallizing Straight 1S Straightener for Very Sensitised Hair is a professional salon straightening cream specially formulated for very sensitised, fragile or chemically treated hair. As the first step in the renowned Shiseido Crystallizing Straight System, this advanced Japanese straightening treatment is designed to gently restructure the hair's internal bonds while helping preserve the integrity, softness and condition of delicate hair.

Developed with Shiseido's innovative hair science technology, the 1S Straightener provides a mild yet effective straightening solution for hair that has undergone multiple chemical services, including colouring, bleaching or previous straightening treatments. Its carefully balanced formula helps minimise stress on the hair while delivering long-lasting smoothness, shine and manageability.

The rich cream consistency allows for smooth, controlled application and even distribution from roots to ends, ensuring consistent processing and reliable straightening results. When paired with the Shiseido Crystallizing Straight Neutralizer, the system permanently reforms the hair's internal structure, locking the hair into its new straight shape while helping reduce frizz and improve manageability.

Ideal for clients with very sensitised or compromised hair, the 1S Straightener smooths the hair cuticle, reduces unwanted volume and leaves hair feeling silky, soft and healthy-looking. The result is beautifully straight hair with natural movement, radiant shine and long-lasting manageability.

Trusted by professional salons worldwide, the Shiseido Crystallizing Straight System is recognised for its premium Japanese technology, predictable performance and exceptional straightening results across a wide range of hair types and conditions.

For professional use only. This product should be used as part of the complete Shiseido Crystallizing Straight System and applied according to the manufacturer's instructions.

Benefits
Formulated specifically for very sensitised and chemically treated hair
Permanently restructures hair for smooth, straight results
Gentle formula helps maintain the condition of fragile hair
Reduces frizz and unwanted volume
Leaves hair soft, silky and easy to manage
Cream formula provides smooth, even application
Designed for use with the Shiseido Crystallizing Straight Neutralizer
Ideal For
Professional salon straightening services
Very sensitised or chemically treated hair
Bleached, coloured or previously straightened hair
Permanent hair straightening treatments
Reducing frizz and improving manageability
Clients seeking sleek, smooth and healthy-looking hair
Why You'll Love It

You'll love how Shiseido Crystallizing Straight 1S Straightener delivers beautifully smooth, straight and manageable hair while being gentle enough for very sensitised and fragile hair. Its advanced Japanese formula provides reliable, long-lasting straightening while helping maintain softness, shine and the overall health of the hair.

Final Word

For professional permanent straightening of very sensitised hair, Shiseido Crystallizing Straight 1S Straightener offers exceptional salon-quality performance with a gentle touch. When used as part of the complete Shiseido Crystallizing Straight System, it helps create sleek, smooth and beautifully straight hair with long-lasting, predictable results while helping preserve the condition and integrity of delicate hair