20 Volume (6% Peroxide): Provides a gentle, standard lift. It is ideal for covering grey, lifting fine or damaged hair by 1-2 shades, and is generally considered safer for at-home use.
30 Volume (9% Peroxide): Used for significant lightening of darker or resistant hair types. It offers a higher lift (3 levels) but should be monitored carefully to prevent over-processing. It is ideal for bringing dark hair to a light brown or dark blonde.
40 Volume (12% Peroxide): The strongest option, offering maximum lifting power (4+ levels). It is recommended for very dark, coarse hair, but it has a high risk of causing damage, "frizzling" hair, or causing scalp burns.
Reddit +6
Key Considerations
Damage Risk: Higher volumes (30/40) do more damage. 40 volume is generally for professional use only.
Speed vs. Safety: 30 and 40 vol work faster, but lower volumes (20) are safer.
Starting Color: If your hair is already light, 20 Vol is usually sufficient.
Reddit +3
Recommendations
If your hair is already light or damaged, use the Directions 20 Volume Kit.
For average, dark brown hair looking for a noticeable lift, the Directions 30 Volume Kit is usually recommended.
Only use the Directions 40 Volume Kit if you have very thick, dark hair and are experienced with bleaching, keeping it away from the scalp if possible.
20 Volume (6% Peroxide): Provides a gentle, standard lift. It is ideal for covering grey, lifting fine or damaged hair by 1-2 shades, and is generally considered safer for at-home use.
30 Volume (9% Peroxide): Used for significant lightening of darker or resistant hair types. It offers a higher lift (3 levels) but should be monitored carefully to prevent over-processing. It is ideal for bringing dark hair to a light brown or dark blonde.
40 Volume (12% Peroxide): The strongest option, offering maximum lifting power (4+ levels). It is recommended for very dark, coarse hair, but it has a high risk of causing damage, "frizzling" hair, or causing scalp burns.
Reddit +6
Key Considerations
Damage Risk: Higher volumes (30/40) do more damage. 40 volume is generally for professional use only.
Speed vs. Safety: 30 and 40 vol work faster, but lower volumes (20) are safer.
Starting Color: If your hair is already light, 20 Vol is usually sufficient.
Reddit +3
Recommendations
If your hair is already light or damaged, use the Directions 20 Volume Kit.
For average, dark brown hair looking for a noticeable lift, the Directions 30 Volume Kit is usually recommended.
Only use the Directions 40 Volume Kit if you have very thick, dark hair and are experienced with bleaching, keeping it away from the scalp if possible.
