How Long to Leave Bleach in Hair 30 Vol to Lighten Hair?

How Long Should You Leave Bleach in Your Hair?

The amount of time bleach should stay in your hair depends on several key factors. While general guidelines exist, it’s crucial to always follow the specific instructions provided in your bleaching kit. Leaving bleach on longer than recommended can seriously damage your hair.

Here’s what to consider—especially when using a 30-volume developer:

1. Your Hair Type

Your hair’s condition plays a major role.

• Virgin hair (unprocessed) typically lifts faster and doesn’t need prolonged bleaching time.

• Previously treated hair might react differently and more unpredictably.
  Finer hair textures also process faster, while thicker, coarser hair may take longer to lighten.

2. Your Starting Hair Color

The darker your natural or current color, the longer the bleach may need to stay on.

• Dark hair (black or dark brown) requires a longer processing time to reach lighter shades.

• Light brown or blonde hair needs less time to achieve the desired lift.

⚠️ According to the American Academy of Dermatology (AAD), you should avoid lifting more than 3 shades lighter in a single session to prevent severe damage.

3. Your Desired Color

Your target shade influences how long the bleach should stay on:

• If you're aiming for just 1–2 shades lighter, a short processing time is sufficient.

• For dramatic lightening (like platinum blonde), multiple sessions or longer application time (within safe limits) may be necessary.

Keep in mind: once bleach dries, it stops working—leaving it on longer won’t make your hair lighter and may only damage it.

4. The Developer Strength

Most bleaching kits contain a developer—usually 10, 20, 30, or 40 volume:

• 30 volume developer is strong and can lighten hair by up to 3 levels.

• The processing time generally ranges between 15 to 30 minutes, depending on hair type and color.

If you're working with a salon or using professional products, the stylist may adjust timing based on the specific formula and your hair goals.

How to Know When to Rinse the Bleach

Not sure when to rinse? Follow these tips:

• Set a timer based on the instructions from your kit.

• Check progress every 5–10 minutes to avoid over-processing.

• Do a strand test before full application—bleach a small hidden section to see how your hair reacts and how long it takes to lighten.

This simple step can help prevent damage and ensure your final result is what you’re aiming for.

>> Read full article: How Long to Leave Bleach in Hair 30 Vol to Lighten Hair? <<