Factors that Influence Bleaching Outcome:
* Hair Condition:
* Healthy, virgin hair (untreated, undamaged) is the most receptive to bleaching with the least amount of damage.
* Damaged, previously bleached, permed, relaxed, or chemically treated hair is much more vulnerable and prone to breakage. Multiple chemical processes build up damage. Bleaching damaged hair is high risk.
* Fine hair tends to be more fragile than thick hair.
* Dry or porous hair absorbs bleach unevenly and is more likely to become brittle.
* Bleach Strength (Volume of Developer):
* Higher volume developer (e.g., 40 volume) lifts color faster but is more damaging. It is usually only used for very dark hair or professional applications.
* Lower volume developer (e.g., 10 or 20 volume) lifts color more slowly and gently, minimizing damage, especially if you only need to lift a few shades. 30 vol developer may be used in some circumstances
* Processing Time:
* Over-processing leads to extreme damage.
* Under-processing can leave hair brassy or uneven.
* Application Technique:
* Uneven application can lead to banding and uneven lightening.
* Overlapping bleach onto previously bleached sections is a major cause of breakage.
* Aftercare:
* Proper hydration and protein replenishment are crucial for restoring hair health after bleaching.
* Expertise:
* A professional colorist has the experience and knowledge to assess your hair's condition, choose the right products, and apply them correctly to minimize damage.
Steps to Minimize Damage When Bleaching:
1. Assess Your Hair's Condition:
* Be honest about your hair's history and current state.
* If your hair is already damaged, focus on repairing it before considering bleaching.
* Consider a strand test: Apply bleach to a small, hidden section of your hair to see how it reacts.
2. Consider Professional Help:
* If you're unsure, it's always best to consult a professional colorist. They can assess your hair, advise on the best course of action, and perform the bleaching process safely.
3. Prepare Your Hair:
* Hydrate: Use deep conditioning treatments or hair masks in the weeks leading up to bleaching.
* Don't Wash Immediately Before: Leave your hair unwashed for 1-2 days before bleaching. The natural oils will help protect your scalp and hair.
* Avoid Heat Styling: Minimize heat styling (blow dryers, flat irons, curling irons) to prevent further damage.
4. Choose the Right Products:
* High-Quality Bleach: Invest in a good quality bleach powder or cream.
* Low Volume Developer: Start with a lower volume developer (10 or 20) to minimize damage. You can always bleach again with a higher volume later if needed.
* Toner: Toner is essential to neutralize unwanted brassy or yellow tones after bleaching.
* Bond Builders: Add a bond builder like Olaplex, or Redken's pH Bonder to the bleach mixture. These help protect and rebuild hair bonds during the bleaching process.
5. Application Technique:
* Follow Instructions Carefully: Read and understand the instructions on the bleach and developer packaging.
* Start at the Roots (Sometimes): Bleach processes faster on the roots, so apply it there last. However, if you are not looking to lift the root color, you would apply the bleach to the roots last. If your roots are virgin hair and the rest of your hair is already bleached, start with the lengths and ends and then apply to the roots when the lengths and ends are almost at the desired level of lift.
* Work in Small Sections: Apply the bleach evenly and thoroughly, working in small, manageable sections.
* Avoid Overlapping: Be careful not to overlap the bleach onto previously bleached sections, as this will cause breakage.
* Monitor Closely: Check your hair frequently during the processing time.
6. Processing Time:
* Do Not Exceed Recommended Time: Never leave the bleach on for longer than the manufacturer's recommended time.
* Rinse Thoroughly: Rinse the bleach out thoroughly with cool water.
7. Tone Your Hair:
* Apply Toner: Use a toner to neutralize any unwanted brassy or yellow tones.
8. Aftercare is Crucial:
* Deep Conditioning: Use a deep conditioning treatment immediately after bleaching and regularly thereafter.
* Protein Treatments: Use protein treatments to strengthen and rebuild the hair shaft (but don't overuse them, as too much protein can make hair brittle).
* Moisturizing Products: Use moisturizing shampoos, conditioners, and leave-in treatments to keep your hair hydrated.
* Avoid Heat Styling: Minimize or eliminate heat styling as much as possible.
* Air Dry: Let your hair air dry whenever possible.
* Protect From the Sun: Use hair products with UV protection to prevent further damage from the sun.
* Regular Trims: Get regular trims to remove split ends and prevent them from traveling up the hair shaft.
When Bleaching is a Bad Idea:
* If Your Hair is Severely Damaged: Focus on repairing your hair first.
* If You Have a Sensitive Scalp: The bleach can irritate your scalp.
* If You're Not Willing to Invest in Aftercare: Bleaching requires a commitment to proper maintenance.
* If You're Attempting a Drastic Color Change at Home: Going from very dark to very light hair requires multiple bleaching sessions and is best left to professionals.
* If You Have Just Had a Relaxer or Perm: Wait at least two weeks, and preferably longer, before bleaching.
In summary, bleaching can be done safely with careful planning, the right products, proper technique, and diligent aftercare. If you're unsure, consult a professional. It's better to be safe than sorry when it comes to the health of your hair.