Best Hair Developers in India: Complete Guide to 6% 20 Vol and More

Author : fabb6-beautyproduct shop | Published On : 17 May 2026

Have you ever stood in a salon supply store, staring at rows of bottles that all say "Developer," and had absolutely no idea which one to pick?

You're not alone. Hair developers are easily one of the most misunderstood parts of the hair color process. The numbers (6%, 20 Vol, 30 Vol) get thrown around constantly, but nobody really explains what they mean in plain language or, more importantly, what happens when you pick the wrong one.

This guide fixes that. Whether you're a salon professional looking to refine your developer choices or someone exploring home coloring, here's everything you need to know about hair developers: what they do, which volume to use, and which products are actually worth buying in India.

What Is a Hair Developer and Why Can't You Skip It?

A hair developer (also called an oxidant or activator) is the creamy liquid you mix with hair color to make it actually work. Without it, permanent hair dye simply won't penetrate the hair shaft or create any lasting result. It's not optional it's half the process.

The active ingredient in every developer is hydrogen peroxide. When mixed with hair color, it does three things:

1. Opens the outer layer of the hair (the cuticle) to allow color pigment in
2. Triggers the oxidation reaction that develops your chosen shade
3. Lifts existing pigment from the hair, depending on its strength

The key variable is how much hydrogen peroxide is in the bottle and that's exactly what the volume number tells you.

Quick tip: Always mix developer and color in a non-metallic bowl. Metal reacts with hydrogen peroxide and can degrade both the formula and your results.

Volume and Percentage: Why They Mean the Same Thing

This trips up almost everyone the first time. Here's the short answer: volume and percentage are two different units for measuring the exact same thing — the concentration of hydrogen peroxide in the developer.

So "6% 20 Vol" on a label isn't giving you two different pieces of information. It's saying the same thing twice, in two systems.

Each 3% increase in peroxide concentration gives you roughly one additional level of lift. That's a useful rule of thumb when you're deciding between 20 and 30 Vol.

Which developer is best for grey hair? The answer isn't just "20 Vol." It depends on how resistant the grey is. Coarse, stubborn greys (common in Indian hair types) sometimes need a denser cream developer rather than a lighter oil-based one, even at the same volume.

Can I use any developer with any color? This is a common and costly mistake. Professional developer lines are specifically pH-balanced and buffered to work with their brand's color chemistry. Mixing brands can produce uneven results, unexpected tones, or in worst cases, scalp irritation.

Is an oil developer better? Not universally. Oil-based developers are gentler and better for sensitive scalps and damaged hair, but they don't always deliver the same grey coverage density as cream developers. Knowing when to use which type is more important than declaring one "better."

When to Use 20 Vol (6%) — The Most Important Developer to Understand

20 Vol is the most commonly used developer in professional salons worldwide, and for good reason. It sits at the sweet spot between lift and safety. Here's when it's the right call:

• Covering grey or white hair fully (especially up to 50% grey)
• Applying permanent color at or close to your natural level
• Lifting 1–2 shades lighter
• Using ammonia-free systems like L'Oréal INOA
• Clients with moderately healthy hair who want vibrant, lasting color

When not to use 20 Vol:

• You need more than 2 levels of lift (use 30 Vol)
• You're doing a toning or glazing service with no lift needed (use 10 Vol)
• You're working on bleached or heavily damaged hair (assess carefully, may need 10 Vol)

Salon tip: If a client has more than 50% grey and resistant hair texture, 20 Vol with a dense cream developer will give better coverage than switching to 30 Vol — the extra lift isn't what you need, the density is.

4 Best Hair Developers Available in India (Honestly Reviewed)

India's professional hair market has grown significantly, and these four developers are trusted by salon professionals across the country. Here's an honest look at each — what they're genuinely good at, and where they fall short.

1. Loreal INOA Oxydant Developer 6% 20 Vol — 1000ml

Best for: Ammonia-free coloring, sensitive scalps, INOA color range

The Loreal INOA Oxydant Developer 6% 20 Vol is built around something called an Oil Delivery System (ODS). Instead of relying on ammonia to force the cuticle open, oil carries the color pigment directly into the hair fiber. The result is noticeably gentler on the scalp and eliminates the sharp chemical smell that puts many clients off traditional color services.

This developer is calibrated specifically for the INOA color range, and that pairing matters. It works at a 1:1 mixing ratio with INOA shades and delivers clean, consistent color with excellent grey coverage for a gentle system.

What it does well: Scalp comfort, zero ammonia smell, smooth application, reliable grey coverage within the INOA system.

Where it has limits: It's not a universal developer. Using it outside the INOA system risks uneven results because the oil base isn't calibrated for standard ammonia-based color chemistry.

Important: Don't use INOA Oxydant with Majirel or other non-INOA lines. The formulas aren't compatible.

2. Loreal Oreor Developer 20 Vol — 1000ml

Best for: Heavy grey coverage, Majirel colors, multi-brand compatibility

The Loreal Oreor Developer 20 Vol is what most people mean when they picture a "standard professional developer." It's Loreal's universal cream developer — designed to work across Majirel, Richesse, Dia Color, and other Loreal professional lines.

What makes Oreor particularly useful for Indian salons is its dense, opaque consistency. That density translates to excellent coverage on resistant grey hair — the kind of coarse, stubborn grey that lighter or oil-based developers sometimes struggle to fully deposit on.

For high-volume salons handling a wide variety of clients and color services in a day, Oreor's versatility and consistency make it a reliable workhorse.

What it does well: Grey coverage on resistant hair, consistent viscosity, multi-line compatibility, great value at scale.

Where it has limits: Not the gentlest option for clients with scalp sensitivity or fine, damaged hair.

Mixing note: For Majirel colors, use a 1:1.5 ratio (1 part color to 1.5 parts Oreor) for optimal consistency and coverage.

3. Schwarzkopf IGORA 6% Oil Developer 20 Vol — 1000ml

Best for: Fine or damaged hair, IGORA Royal shades, gentle color application

The Schwarzkopf IGORA 6% Oil Developer 20 Vol uses an oil-enriched base that cushions the hair during the chemical coloring process. For clients with fine, bleached, or chemically processed hair — where standard cream developers can cause additional brittleness — this is often the smarter choice.

It's specifically designed to pair with Schwarzkopf's IGORA Royal color range, which is widely respected in professional settings for its color accuracy and consistency. The lipid carrier system in this developer helps smooth the cuticle as it works, which shows up as better shine in the finished result.

What it does well: Gentle on compromised hair, excellent shine, precise color results with IGORA Royal, good for scalp-sensitive clients.

Where it has limits: Like the INOA developer, it performs best within its own brand ecosystem. Grey coverage on very resistant hair may not be as dense as a cream developer.

Mixing note: Use a 1:1 ratio with IGORA Royal and process for the full recommended development time. Don't rush — the oil system needs time to deliver the pigment evenly.

4. Matrix Oxydant 20 Vol — 1000ml

Best for: High-volume salon use, SoColor and Color Sync ranges, budget-conscious professionals

The Matrix Oxydant 20 Vol occupies a very specific and useful niche: it's the reliable, no-frills developer for salons that go through large quantities every month and need consistent results without a high cost per unit.

It's formulated to work with Matrix's SoColor and Color Sync ranges, delivering predictable outcomes for grey blending, natural permanent color, and standard lift services. It doesn't have the oil-enriched gentleness of IGORA or INOA, but for healthy, standard hair types, it performs exactly as expected.

What it does well: Cost efficiency, consistent results, straightforward mixing, works well for standard permanent color services.

Where it has limits: Not the best choice for fine, damaged, or sensitized hair — the formula is functional rather than nourishing.

How Developers Differ by Hair Type — A Practical Breakdown

This is something most guides miss, and it's where real-world coloring decisions get made.

Thick, coarse, resistant hair (common in Indian hair types): A dense cream developer like Loreal Oreor gives better results than an oil-based developer. The opacity of the formula helps deposit color into stubborn hair that resists penetration.

Fine, thin, or bleach-damaged hair: Oil-based developers (IGORA, INOA Oxydant) are gentler on the hair structure. They reduce the risk of further breakage and brittleness during color processing.

Chemically treated or colored hair: Always do a strand test first. Depending on the level of previous chemical damage, you may need to step down from 20 Vol to 10 Vol to avoid over-processing.

Scalp-sensitive clients: Ammonia-free systems paired with oil-based developers (INOA Oxydant being the best example) are the safest route. The oil delivery mechanism avoids the scalp irritation that ammonia and high-peroxide developers can cause.

Cream vs. Oil Developer: Which Should You Actually Use?

Since this comes up constantly in search results and salon conversations, here's a direct comparison:

Cream Developers (e.g., Loreal Oreor, Matrix Oxydant)

• Thicker consistency — less dripping during application
• Better for full grey coverage, especially resistant grey
• More opaque color deposit
• Works well on healthy, standard hair types

Oil-Based Developers (e.g., Loreal INOA Oxydant, Schwarzkopf IGORA Oil Developer)

• Gentler on the scalp and hair fiber
• Reduces irritation, especially for ammonia-free systems
• Better for fine, sensitized, or previously damaged hair
• May require staying strictly within the brand's color system

Neither is universally "better." The right choice depends on your client's hair condition, their scalp sensitivity, and the color line you're using.

Step-by-Step: How to Use a 20 Vol Developer Correctly

Getting the developer right is only half the job. Application matters just as much.

Step 1 — Patch test (48 hours before) Apply a small amount of the color-developer mixture behind the ear or in the crook of the elbow. Any redness, itching, or swelling means don't proceed. This applies to both salon and home use.

Step 2 — Measure carefully Use the correct mixing ratio for your color line. 1:1 for most professional systems; 1:1.5 for Majirel with Oreor. Don't eyeball this — off ratios affect both consistency and results.

Step 3 — Mix in a non-metallic bowl Mix until the color and developer are fully combined with no streaks. Metal bowls react with hydrogen peroxide.

Step 4 — Apply to dry or towel-dried hair Start from the roots for grey coverage. For all-over color, work in sections to ensure even saturation.

Step 5 — Respect the processing time Most permanent colors process in 30–35 minutes at room temperature. Setting a timer isn't overthinking it — over-processing is one of the most common causes of hair damage in color services.

Step 6 — Rinse with lukewarm water Hot water opens the cuticle further and can cause color to fade faster. Follow with the brand's recommended post-color treatment.

Storage and Safety: What the Label Won't Always Tell You

Hair developer is a chemical product, and it degrades over time in ways that aren't always obvious just by looking at the bottle.

Storage rules that actually matter:

• Keep in a cool, dry place away from sunlight; heat accelerates oxidation and weakens the peroxide
• Once opened, use within 6 months for reliable results
• Always keep the cap sealed tightly; air exposure breaks down hydrogen peroxide even without heat
• Never store in a metal container; use the original plastic bottle or a glass container
• Write the opening date on the bottle with a marker so you can track shelf life in a busy salon

Safety habits worth building:

• Always wear gloves; extended skin contact with hydrogen peroxide causes irritation and can bleach skin
• Never apply developer directly to the scalp without first mixing it with color
• If any developer gets in the eyes, rinse immediately with clean running water for several minutes
• Don't use developer on recently bleached or relaxed hair without a strand test. Stacking chemical treatments without an assessment is how breakage happens

Quick Reference: Which Developer for Which Color Line

For a more detailed breakdown of all four products including pricing and availability, see the full Best Hair Developers in India guide on Fabb6.

Conclusion

If there's one thing to take away from this guide: the "best" hair developer is the one that matches your color line, your client's hair condition, and the result you're actually trying to achieve.

For most standard permanent color services, grey coverage, and 1–2 level lift work, 20 Vol (6%) is the right starting point. From there:

• Go with INOA Oxydant for ammonia-free services and sensitive scalps
• Reach for Loreal Oreor when you need dense coverage on resistant or heavily grey hair
• Choose Schwarzkopf IGORA Oil Developer for fine, damaged, or chemically treated hair
• Pick Matrix Oxydant when you need reliable results at volume across a standard client base

Nail your developer choice, respect your mixing ratios, and store your products correctly, and your color results will be consistent every single time.