Overview
This video explains the importance of bleach-to-peroxide ratios for hair bleaching, offering practical guidance for professionals and at-home users to maximize lift while minimizing damage.
Understanding Bleach Ratios
- A ratio expresses the proportion of bleach to peroxide (developer) used in mixing.
- The bleach component is always listed first in the ratio (e.g., 1:2 = one part bleach, two parts peroxide).
- Ratios are universal and not dependent on brand or specific product.
- Always weigh and measure ingredients precisely; never estimate by eye.
Key Bleach Ratio Guidelines
- 1:1 ratio is the most powerful, ideal for lifting dark or resistant hair but can be harsh on already damaged hair.
- 1:2 ratio is the most commonly used by professionals, suitable for highlights and global lightening in foils.
- 1:3 ratio is rarely used but can be chosen based on specific needs.
- 1:4 ratio is recommended for color removal or when removing direct dye from hair.
- 1:5 ratio can replace the traditional “bleach bath” and should be used for gentle pigment removal; avoid mixing bleach with shampoo.
Advice and Best Practices
- The lifting power comes from the bleach, not higher peroxide volumes.
- Higher peroxide increases speed, not the amount of lift.
- Know your product and always work to maintain hair integrity, especially with sensitized or damaged hair.
- Ignore the myth that bleach “pushes” direct dye further into the hair; bleach removes pigment.
- Avoid “bleach baths” with unmeasured mixes to prevent unwanted chemical reactions and damage.
Recommendations / Advice
- Only use higher power ratios (1:1) on healthy, non-damaged hair.
- For color removal or after chemical treatments, use more diluted ratios (1:4 or 1:5).
- Always measure products accurately to ensure controlled and safe results.
- Don’t exceed 20 volume peroxide unless absolutely necessary.
- Monitor hair closely during processing, especially when using strong or diluted mixtures.