• Product Line: Crystallizing Straight Alpha
• Formula: H (For Resistant to Natural Hair)
• Type: Permanent Hair Straightening Set (2-Step System)
• Hair Condition: Thick, coarse, or naturally curly hair
• Quantity: 2 items per set (Straightener and Neutralizer)
• Professional Use: Yes (Salon-grade)
• Country of Origin: Thailand / Japan

Achieve flawlessly sleek and pin-straight hair with the Shiseido Crystallizing Straight H1 professional straightening system. This advanced thermal straightener is specifically engineered for those with naturally curly, thick, or resistant hair types that require a high-performance formula to manage. By utilizing the power of Super Hyaluronic Acid, this system effectively redefines the hair structure while maintaining essential moisture, ensuring your hair remains hydrated and protected throughout the intense chemical process.

The innovative formula of Shiseido Crystallizing Straight H1 delivers exceptional results, leaving hair incredibly soft, smooth, and radiant with a natural-looking shine. Unlike standard straightening products, this professional kit focuses on hair integrity, preventing the dry or brittle feel often associated with permanent straightening. Whether used in a salon or by experienced home users, this kit provides a long-lasting, high-gloss finish that transforms stubborn curls into manageable, silky strands.

- Super Hyaluronic Power: Infuses hair with intense moisture for a soft and smooth texture after straightening
- Ultimate Straightening: Shiseido Crystallizing Straight H1 effectively tames naturally thick and very resistant hair strands
- Crystallizing Technology: Locks in a brilliant shine while redefining the internal structure
- Improved Manageability: Reduces frizz and volume for easier daily styling and a professional finish
- Two-step Professional System: Balanced approach to hair care for difficult-to-straighten hair

- Super Hyaluronic Acid: A premium hydrating agent in Shiseido Crystallizing Straight H1 that protects hair from moisture loss
- Ammonium Thioglycolate: The active straightening agent used to break down the natural curl bonds
- Hydrogen Peroxide: The essential neutralizing agent used to stabilize and lock hair into a straight shape
- Conditioning Agents: Specialized ingredients to improve smoothness during the chemical treatment

1. Cleanse hair with shampoo (no conditioner) and blow dry to 80%
2. Apply H1 Straightener cream evenly, avoiding scalp contact
3. Process for 10-20 minutes depending on condition, then rinse thoroughly
4. Blow dry and use a flat iron in small sections to straighten
5. Apply Neutralizing cream for 2-3 minutes, rinse, and style as desired

Straightener (H1): Water, Ammonium Thioglycolate, Cetearyl Alcohol, Diammonium Dithiodiglycolate, Propylene Glycol, Ethanolamine, Behenyl Alcohol, Mineral Oil, Amodimethicone, Sodium Hyaluronate, Stearyl Alcohol, Cetrimonium Chloride, Isopropyl Alcohol, Fragrance.

Neutralizer: Water, Cetearyl Alcohol, Dimethicone, Behenyl Alcohol, Hydrogen Peroxide, Behentrimonium Chloride, Mineral Oil, Phosphoric Acid, Sodium Hyaluronate, Cetyl Alcohol, Fragrance.