1. Bleach (Powder Bleach/Lightening Powder): This is usually mixed with a developer (hydrogen peroxide) to create a powerful lightening mixture. It's used to lift pigment from the hair, often to achieve significantly lighter shades or to create a base for vibrant colors.
2. Cream Bleach: Similar to powder bleach in that it is mixed with a developer, but it often contains oils or conditioning agents to mitigate some of the damage caused by lightening. It is preferred by some stylists due to its consistency and ease of application.
3. Hair Lightening Sprays/Gels: These products typically contain lower concentrations of hydrogen peroxide or other lightening agents. They're designed for gradual, subtle lightening over time with repeated use and often heat activation (like from the sun or a blow dryer). They are less damaging than bleach but are generally only effective for those with lighter hair colors.