However, if you're determined to do it yourself, here's a comprehensive guide to minimizing risks:
1. Assess Your Hair's Condition:
* Is your hair healthy? Bleaching is incredibly damaging. Damaged hair is already weakened and more prone to breakage. If your hair is brittle, dry, or has split ends, address these issues with deep conditioning treatments and protein masks *before* even considering bleach. Wait at least 2-4 weeks after a deep conditioning treatment.
* Has it been chemically treated recently? Wait at least 6-8 weeks after perms, relaxers, or other chemical treatments before bleaching. Overlapping chemicals is a recipe for disaster.
* Color History: Dark dyes, especially red and black box dyes, are notoriously difficult to lift. They can leave you with uneven results or even damage your hair so badly it needs to be cut off. If you have dyed your hair in the last year (or longer!) its important to do strand tests to see how your hair will lift.
* Natural Hair Color: The darker your natural hair color, the more bleach and processing time will be required to achieve lighter shades. This means more potential damage.
2. Gather Your Supplies:
* Bleach Powder (Lightener): Choose a good quality brand. Wella, L'Oreal, and Schwarzkopf are generally well-regarded. Avoid generic, super cheap bleach.
* Developer: Developer is hydrogen peroxide. The higher the volume, the faster and more effectively it lifts color, but also the more damaging it is. Common volumes are 10, 20, 30, and 40. Start with a lower volume (10 or 20) for finer hair, damaged hair, or if you're only lifting a shade or two. 30 volume is common for more significant lifts. NEVER use 40 volume on your scalp due to the risk of chemical burns. 40 volume is generally best left to professionals, as it requires precise application and timing.
* Toner: Toner is used *after* bleaching to neutralize unwanted tones (like yellow or orange) and achieve your desired shade (e.g., platinum, ash blonde, etc.). It's *essential* unless you're specifically aiming for a warm, yellow-blonde.
* Purple Shampoo and Conditioner: For maintaining your color after bleaching and toning.
* Mixing Bowl and Applicator Brush: Use a non-metallic bowl and brush.
* Gloves: Protect your hands!
* Old Towels and Clothes: Bleach stains *everything*.
* Hair Clips: For sectioning your hair.
* Vaseline or Coconut Oil: To protect your hairline and ears from irritation and staining.
* Timer: Crucial for monitoring the processing time.
* Protein treatment.
3. Strand Test is KEY:
* This is non-negotiable, especially if you have dyed your hair before. Cut a small, inconspicuous section of hair (from underneath is best).
* Mix a small amount of the bleach and developer according to the instructions.
* Apply it to the strand test section.
* Check the strand every 5-10 minutes to see how it's lifting. Note the time it takes to reach your desired level and how the hair feels.
* Rinse, tone (if applicable), and dry the strand.
* This test will tell you:
* How your hair reacts to the bleach.
* How long it takes to reach the desired lift.
* If your hair can even handle the bleach without significant damage.
4. Prepare Your Hair:
* Don't wash your hair for 1-2 days before bleaching. The natural oils help protect your scalp.
* Apply Vaseline or coconut oil to your hairline and ears to prevent irritation.
5. Mixing and Application:
* Follow the bleach and developer instructions *exactly*. The ratio is crucial for proper processing. Usually it's 1 part bleach to 2 parts developer, but ALWAYS check the product instructions.
* Mix thoroughly until you have a smooth, creamy consistency.
* Work in Sections: Divide your hair into four sections (or more if you have thick hair).
* Apply the Bleach: Start applying the bleach to the roots if this is your first time doing your whole head. The roots process faster than the ends because of the heat from your scalp. This is key for even results.
* If you are bleaching your roots, apply the bleach close to your scalp *without* touching the scalp directly. Leave about 1/4 inch of root untouched until the last 10-15 minutes to avoid "hot roots" (roots that process much faster and end up lighter than the rest of your hair).
* If you have virgin hair or are doing a full head of bleach, apply the bleach to the mid-lengths and ends first, leaving the roots for the last 10-15 minutes.
* Work Quickly and Evenly: Try to apply the bleach as quickly and evenly as possible.
* Ensure Saturation: Make sure every strand of hair is thoroughly saturated with the bleach mixture.
6. Processing Time:
* Check Frequently: Check the strand test result for how long you should process your hair for. Check a small section every 5-10 minutes to monitor the lifting process.
* Do Not Exceed the Maximum Time: Follow the bleach manufacturer's instructions. Typically, the maximum processing time is 50-60 minutes, but it can vary. Going over the maximum time will not make your hair lighter; it will only cause more damage.
* Watch for Heat: If your scalp feels excessively hot or starts to burn, rinse immediately.
7. Rinsing and Toning:
* Rinse Thoroughly: Rinse your hair with cool water until all traces of bleach are gone.
* Shampoo: Use a gentle, sulfate-free shampoo.
* Toner: Apply toner according to the product instructions. This is crucial for achieving your desired final color. Toner neutralizes unwanted tones and deposits pigment.
* Rinse Again: Rinse the toner thoroughly.
* Deep Condition: Use a deep conditioner or hair mask to help restore moisture and strength to your hair. Leave it on for at least 10-15 minutes.
8. Post-Bleach Care:
* Moisturize: Use a deep conditioner or hair mask at least once a week.
* Protein Treatments: Use protein treatments (but not excessively, as too much can make hair brittle) to help strengthen your hair.
* Purple Shampoo and Conditioner: Use purple shampoo and conditioner to maintain your tone and prevent brassiness.
* Heat Protection: Avoid heat styling as much as possible. When you do use heat, always use a heat protectant spray.
* Trim Regularly: Trim any split ends to prevent further damage.
* Avoid Chemical Treatments: Give your hair a break from other chemical treatments (perms, relaxers, etc.) for several months.
Important Considerations and Warnings:
* Allergies: Perform a patch test on your skin 48 hours before bleaching to check for allergic reactions. Apply a small amount of the mixed bleach solution to a small area of skin (e.g., behind your ear) and observe for any redness, itching, or irritation.
* Chemical Burns: Scalp burns are a risk with bleaching, especially with higher-volume developers. If you experience excessive heat or burning, rinse immediately. If the burning is severe, seek medical attention.
* Uneven Results: Uneven application can lead to patchy color. Be meticulous in your application and ensure full saturation.
* Hair Breakage: Over-processing can cause your hair to become brittle and break. If your hair feels gummy or stretchy when wet, it's likely over-processed. Seek professional help to assess the damage and determine the best course of action.
* Professional Help is Best: Again, if you're unsure or have a complex color situation, consult a professional colorist. They have the experience and expertise to minimize the risks and achieve your desired results.
When to STOP and Seek Professional Help:
* If your scalp is burning intensely.
* If your hair feels gummy or elastic when wet.
* If you're not achieving the desired lift after the recommended processing time and your hair feels damaged.
* If you're overwhelmed or uncomfortable at any point in the process.
Bleaching your hair at home is a serious undertaking. By following these steps carefully and prioritizing the health of your hair, you can minimize the risks and hopefully achieve the color you desire. But remember, if in doubt, consult a professional! Good luck!