Most salons use professional-grade color from a handful of major brands, primarily L’Oréal (including its Matrix and Redken lines), Wella, and Schwarzkopf. What separates these products from drugstore box dye isn’t just the brand name. It’s the ability to customize every part of the formula, from pigment concentration to the strength of the developer, so the colorist can tailor the process to your specific hair.
The Major Professional Brands
L’Oréal dominates the professional color market, holding roughly 25% of global market share through brands like Matrix, Redken, and its own L’Oréal Professionnel line. Wella Professionals (owned by Coty, at about 12% market share) and Schwarzkopf Professional (owned by Henkel, at 11%) round out the top tier. Together, these three parent companies supply the vast majority of salon color worldwide.
Within those umbrellas, stylists often have strong preferences for specific product lines. Redken Shades EQ is one of the most widely used demi-permanent glazes. Wella’s Koleston Perfect is a staple permanent color. Matrix SoColor and Schwarzkopf Igora Royal are other common choices. Some high-end salons also carry luxury or niche lines from companies like Shiseido Professional or smaller independent brands, but you’ll find L’Oréal, Wella, or Schwarzkopf products in the overwhelming majority of salons.
Types of Color Salons Work With
Salons don’t rely on a single type of dye. A colorist typically has access to three main categories, and they’ll choose based on what you’re trying to achieve.
- Permanent color opens the hair’s outer layer and deposits pigment deep into the strand while simultaneously removing some of your natural color. It’s used for full gray coverage, dramatic shade changes, and going lighter. Wella Koleston Perfect and Matrix SoColor are popular permanent lines.
- Demi-permanent color deposits pigment without fully opening the hair cuticle. It fades gradually over 20 to 28 washes and works well for toning, adding shine, blending a small amount of gray, or refreshing faded color. Redken Shades EQ is the go-to demi-permanent in many salons.
- Semi-permanent color coats the outside of the hair strand and washes out within a few weeks. Salons use it less frequently, mostly for temporary fashion shades or a quick refresh between appointments.
Why Salon Color Differs From Box Dye
The biggest difference isn’t the pigment itself. It’s the developer. Box dyes ship with a single, one-size-fits-all developer, typically 20 volume (6% peroxide), paired with higher concentrations of lifting agents to guarantee results on a wide range of hair types. That approach works, but it’s inherently more aggressive than necessary for many people’s hair.
In a salon, the colorist selects the developer strength independently from the color. Professional developers come in four standard volumes:
- 10 volume (3%) deposits color with minimal lightening, lifting only 1 to 2 levels. It’s ideal for going darker or making subtle tonal shifts.
- 20 volume (6%) lifts 1 to 2 levels and is the standard for most permanent color jobs and gray coverage.
- 30 volume (9%) lifts 2 to 3 levels, used for more noticeable lightening like going from dark brown to light brown.
- 40 volume (12%) can lift up to 8 levels and is reserved for dramatic lightening. It requires careful handling to avoid damage.
This flexibility means a colorist can use a gentler developer on hair that’s already fine or damaged, and a stronger one only where it’s needed. Box dyes can’t make that distinction. They also tend to contain more ammonia and stronger chemical lifting agents to ensure the color works on as many hair types as possible, which often means more damage than the result actually required.
How Salons Use Acidic Color After Lightening
If you’ve ever had highlights, balayage, or any bleaching service, you’ve probably had a toner or glaze applied afterward. That step uses a demi-permanent, acidic color, and it serves a specific purpose beyond just adjusting your shade.
Bleaching raises the hair’s pH to around 10 or 11, which swells the outer cuticle and leaves it rough and porous. Acidic demi-permanent color (Redken Shades EQ is the most common example) has a low pH that closes the cuticle back down. This smoothing effect locks in the toner shade, reduces porosity, and creates significantly more shine because a flat cuticle reflects light better than a rough one. It’s essentially conditioning the hair while coloring it. Many colorists describe Shades EQ as “color that acts like a conditioner.”
Some colorists follow a zoning approach: they’ll use alkaline (ammonia-based) permanent color only at the roots, where fresh growth needs the most lift, and switch to acidic demi-permanent color on the mid-lengths and ends. This protects previously colored hair from repeated chemical stress while still refreshing the overall shade.
Built-In Bond Builders
One of the bigger shifts in professional color over the past several years is the addition of bond-building technology directly into the dye itself. During any chemical color process, the internal protein bonds that give hair its strength can break. Stand-alone bond repair treatments like Olaplex have been used alongside color for years, but now several color lines build that protection into the formula.
Matrix SoColor with its pre-bonded technology was one of the first major lines to integrate this. Newer entries like bondbar’s bonding permanent color claim up to 53% less breakage compared to standard color when used as part of their full system. Wella’s Koleston Perfect also incorporates what they call Pure Balance Technology, designed to deliver rich, vibrant color with less cumulative damage over repeated applications.
For you as a client, this means the color service itself is doing some of the protective work that used to require a separate add-on treatment (and an extra charge). If minimizing damage is a priority, asking your stylist whether their color line includes bonding technology is a practical question.
Allergy-Reduced Formulas
Traditional permanent hair dyes rely on molecules called PPD and PTD, which are effective colorants but also the most common triggers for hair dye allergies. Wella’s Koleston Perfect ME+ was the first professional permanent color to replace both PPD and PTD with an alternative molecule (called ME+) that reduces the risk of developing a new color allergy while still delivering full gray coverage and the same range of shades. This matters most for clients who color regularly over years or decades, since repeated exposure is what typically triggers sensitization. If you’ve ever had scalp irritation or itching during a color service, asking your salon whether they carry an allergy-reduced formula is worth the conversation.
What to Ask Your Stylist
You don’t need to walk in requesting a specific product by name, but knowing the basics helps you have a more informed conversation. A few questions that actually matter: whether they’re using permanent or demi-permanent color (which affects how it fades and how much maintenance you’ll need), what developer volume they plan to use (especially if your hair is already processed or fragile), and whether the color line includes any bond-building or allergy-reduced technology. Most stylists are happy to explain their choices when a client shows genuine interest. The customization is, after all, the whole reason you’re paying salon prices instead of buying a $12 box.