Oxidants and Bleaching Agents

Oxidants and bleaches are the technical heart of every professional and home coloring: they activate permanent dyes, lighten the hair fiber, and decisively determine the final color result. Choosing them carefully means protecting the hair structure and achieving predictable results, reducing the risk of damage from overexposure. In this selection of over 400 references, you will find oxidizing emulsions in different volumes, bleaching powders, and complete kits for every need and hair type.

How to choose the most suitable oxidant or bleach for your needs

The main criterion to consider is the volume of the oxidant, which expresses the concentration of hydrogen peroxide: a low volume (10–20 vol.) is indicated for gentle colors and deposit dyes, a medium volume (30 vol.) for covering gray hair and moderate lightening, and a high volume (40 vol.) for intense bleaching. Always match the volume to the instructions of the chosen coloring product: an incorrect association is the most common cause of unsatisfactory results or damage to the fiber. Also, consider the formula of the oxidant: creamy emulsions limit dripping and promote even application, while liquid formats are better suited for specific techniques like highlights.

For bleaching powders, pay attention to whether the powder is loose or compact: anti-dust formulas reduce accidental inhalation during preparation and are preferable for safe home use. Always check if the product is formulated for cream or emulsion use and strictly follow the indicated processing times, as arbitrarily extending them does not improve the result but increases the risk of weakening. If you have doubts about compatibility with previous chemical treatments such as perming or keratin, consult a professional before proceeding.

Frequently Asked Questions

What is the difference between oxidant and bleach?

The oxidant (or developer) is the activating component that mixes with the dye or bleaching powder to trigger the chemical reaction. The bleach is instead the powder or cream that, combined with the oxidant, removes the natural or artificial pigment from the hair without adding color.

Can I use a separately purchased oxidant with any dye?

Not always. Each professional line is calibrated to specific concentrations and mixing ratios. Using oxidants from different brands than the dye can alter the viscosity of the mixture and the color result. Always read the manufacturer's instructions for the dye before pairing products from different lines.

How often is it advisable to perform a bleaching?

There is no universal interval: it depends on the condition of the hair, the desired lightening, and the technique used. In general, it is wise to wait until the fiber has sufficiently recovered between treatments. A consultant or industry professional can assess the state of the hair and suggest the most appropriate frequency.