Let’s discuss concerning the totally different volumes of developer!
Should you’ve ever stood within the hair colour aisle gazing builders and had completely no concept which one to seize, you’re not alone.
I answered this query always once I labored at Sally Magnificence Provide. It’s a type of issues that sounds sophisticated however is definitely fairly easy as soon as somebody explains it clearly. In order that’s what this submit goes to do.
Right here’s every little thing you have to know concerning the totally different volumes of developer, what every one does, and precisely which one to make use of in your particular state of affairs.
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What Does Developer Do?
Developer is hydrogen peroxide in a cream base, and it’s the second a part of your hair colour components. You combine it with the precise dye to activate it, and with out it, the colour molecules can’t penetrate your hair shaft.
They’d simply sit on the floor and wash proper off.


Right here’s the way it works: developer opens the hair cuticle, which is the outer protecting layer of every strand. This permits colour molecules to get contained in the cortex the place they’ll do their job.
The upper the quantity, the extra it opens the cuticle, and the extra elevate you get.
The volumes of developer seek advice from how a lot hydrogen peroxide the developer accommodates. Extra peroxide means extra elevate. Much less peroxide means extra deposit.
Hair Ranges: What You Have to Know First
Earlier than we get into the precise volumes of developer, it helps to know hair colour ranges as a result of that is what makes every little thing else make sense.


Hair colour is measured on a scale from 1 to 10. Degree 1 is black and stage 10 is the lightest blonde. The upper the quantity, the lighter the hair. For instance, medium brown is a stage 4.
If you’re coloring your hair, you have to know two issues: your present stage and your goal stage. You’ll be able to often discover your goal stage by trying on the quantity in your hair colour field.
A colour labeled 5N means the goal result’s a stage 5.
To make clear, this doesn’t clarify the colour’s hue; it’s only a strategy to measure how gentle or darkish the colour is.
Carry vs. Deposit
That is the opposite factor you have to perceive earlier than selecting a developer.
Carry means making the hair lighter. In case your hair is a stage 5 brown and also you wish to go to a stage 7 blonde, you have to elevate two ranges.
Deposit means making the hair darker. In case your hair is a stage 7 and also you wish to go to a stage 5, you’re depositing colour.
The amount of developer you select relies upon totally on whether or not you’re lifting, depositing, or someplace in between.
Needless to say virgin hair colour (hair that has by no means been coloured) reacts in a different way than coloured hair. Learn extra concerning the golden rule of lifting hair colour.
What Are The Totally different Volumes of Developer?


10 Quantity Developer (10V / 3% peroxide)
10 quantity is the gentlest developer and the one you utilize whenever you solely wish to deposit colour with none elevate. It barely opens the cuticle, simply sufficient to let colour molecules in with out inflicting any lightening.
Use 10 quantity whenever you’re going darker than your present colour, making use of a toner or glaze, utilizing a demi-permanent colour, or including a tint with out altering your stage.
10 quantity is not going to lighten your hair, so don’t anticipate elevate whenever you use it.
✅ Finest for: Firming, glazing, going darker, demi-permanent colour
⚠️ Received’t work for: Grey protection, lifting, or lightening
💬 Merchandise price making an attempt: Clairol Pure White 10 Quantity Developer
20 Quantity Developer (20V / 6% peroxide)
20 quantity is essentially the most generally used developer in skilled salons, and for good purpose. It lifts the hair 1-2 ranges and gives sufficient processing energy for dependable grey protection, making it the candy spot for most traditional colour functions.
Once I was within the salon, 20 quantity was my default developer for almost all of colour companies. Most girls doing normal all-over colour at dwelling needs to be reaching for 20 quantity routinely.
Use 20 quantity whenever you’re overlaying grey hair, staying at your present stage or going 1-2 ranges lighter, doing an all-over colour with an ordinary everlasting dye, or touching up roots.
✅ Finest for: Grey protection, normal everlasting colour, 1-2 ranges of elevate
⚠️ Heads up: Not sturdy sufficient for important elevate on darkish or resistant hair
💬 Merchandise price making an attempt: Clairol Pure White 20 Quantity Developer
30 Quantity Developer (30V / 9% peroxide)
30 quantity lifts the hair as much as 3 ranges and is the developer you attain for when 20 quantity doesn’t reduce it. It’s generally used with lightener and for extra important colour modifications on virgin hair.
Use 30 quantity whenever you want greater than 2 ranges of elevate, you’re lightening darkish virgin hair, you’re utilizing a high-lift blonde colour on virgin hair, or you have got resistant grey that 20 quantity isn’t totally overlaying.
30 quantity is extra highly effective than 20 and causes extra cuticle disruption, which implies extra potential for dryness and harm if the hair is already compromised. All the time assess the situation of your hair earlier than reaching for 30 quantity.
✅ Finest for: 2-3 ranges of elevate, lightening virgin hair, resistant grey
⚠️ Heads up: Extra damaging than 20 quantity, so test your hair’s situation first
💬 Merchandise price making an attempt: Clairol Pure White 30 Quantity Developer
40 Quantity Developer (40V / 12% peroxide)
40 quantity is the strongest developer you need to ever use at dwelling. It lifts the hair as much as 4 ranges and is often used with lightener or high-lift blonde colour on coarse, resistant virgin hair.
Right here’s my sincere recommendation about 40 quantity: watch out with it. When used with bleach, 40 quantity may cause severe harm if the hair is already compromised, over-processed, or nice.
The elevate is highly effective, however so is the harm potential.
Some high-lift colours even require a double 40 quantity utility for further elevate, however that’s a really particular state of affairs and never one thing I’d advocate making an attempt at dwelling with no stable understanding of hair chemistry.
✅ Finest for: Most elevate, high-lift blonde colour on virgin hair
⚠️ Heads up: Probably the most damaging developer. By no means use on compromised or beforehand bleached hair.
5 and 6 Quantity Developer
These lower-strength builders don’t come up as usually however they’re price understanding about. 5 and 6 quantity are sometimes used with glazes and toners the place you wish to activate the colour with minimal impact on the cuticle. They’re additionally utilized in some demi-permanent colour strains.
They received’t elevate your hair in any respect and received’t present grey protection. Their solely job is to activate the colour molecules with mild processing.
Which Developer Do I Use With Bleach?
This is among the most typical questions I received at Sally Magnificence, so let’s handle it immediately.
With bleach, the developer you select is dependent upon how a lot elevate you want and the situation of your hair.
20 quantity with bleach provides you a slower, gentler elevate and is finest for nice or fragile hair, or whenever you’re doing a delicate lightening service. It provides you extra management over the method.
30 quantity with bleach is the commonest alternative for normal bleaching companies as a result of it presents a superb steadiness of elevate and management.
40 quantity with bleach provides you most elevate but in addition carries the best harm threat. Solely use this you probably have coarse, resistant virgin hair that actually wants it, and by no means on broken or beforehand chemically handled hair.
A basic rule: when unsure, go decrease. You’ll be able to at all times re-bleach when you want extra elevate, however you can’t undo harm from utilizing too sturdy a developer.
Which Developer Do I Use for Grey Protection?
20 quantity developer is the usual advice for grey protection. It opens the cuticle sufficient for colour to penetrate resistant grey hair and gives dependable, even protection.
In case your grey is especially resistant and also you’re not getting full protection with 20 quantity, you’ll be able to attempt 30 quantity, however at all times begin with 20 first.
One essential word: 10 quantity is sort of by no means sufficient for grey protection. The cuticle doesn’t open sufficiently for the colour to totally penetrate resistant grey strands, which is why protection usually appears to be like patchy or fades rapidly when 10 quantity is used.
What Occurs If You Use the Incorrect Developer?
That is the half no one talks about sufficient, so let’s cowl it immediately.
Should you use too low a quantity, the colour received’t elevate sufficient and also you’ll find yourself with a outcome that’s darker or much less vibrant than you wished. With grey protection, you would possibly get patchy, uneven outcomes that fade rapidly.
Should you use too excessive a quantity, the colour processes too quick and might elevate greater than you supposed, leaving you with uneven colour or surprising heat. With bleach, utilizing too excessive a quantity on compromised hair may cause breakage, and in excessive circumstances it will possibly trigger severe harm.
Utilizing a 40 quantity developer with everlasting colour whenever you solely wanted 20 received’t offer you further elevate. It’s going to simply harm your hair extra. Greater isn’t at all times higher.
Fast Reference Information
| Scenario | Use This Quantity |
|---|---|
| Firming or glazing | 10 quantity |
| Demi-permanent colour | 10 quantity |
| Going darker | 10 or 20 quantity |
| Grey protection | 20 quantity |
| Staying at present stage | 20 quantity |
| Lifting 1-2 ranges | 20 quantity |
| Lifting 2-3 ranges | 30 quantity |
| Bleaching nice or fragile hair | 20 quantity |
| Bleaching normal or resistant hair | 30 quantity |
| Excessive-lift blonde on virgin hair | 40 quantity |
| Most elevate on coarse virgin hair | 40 quantity |
FAQ


What Are The Totally different Volumes of Developer?
The commonest volumes of developer are 10, 20, 30, and 40. 10 quantity deposits colour with out elevate. 20 quantity lifts 1-2 ranges and is the usual for grey protection. 30 quantity lifts as much as 3 ranges. 40 quantity lifts as much as 4 ranges and is the strongest developer beneficial for dwelling use.
Ought to I exploit 20 or 30 quantity developer?
It is dependent upon how a lot elevate you want. Should you’re overlaying grey or lifting 1-2 ranges, use 20 quantity. Should you want 2-3 ranges of elevate or your grey is especially resistant, use 30 quantity. When unsure, begin with 20.
What’s 20 quantity developer used for?
20 quantity is essentially the most versatile developer. It’s used for grey protection, normal everlasting colour, staying at your present stage, and lifting 1-2 ranges. It’s the developer most girls ought to attain for by default.
Can I exploit 40 quantity developer with hair colour?
Sure, however solely in particular conditions similar to high-lift blonde colour on virgin hair or most elevate on coarse, resistant hair. By no means use 40 quantity on broken, nice, or beforehand bleached hair.
Does 30 quantity developer lighten hair?
Sure. 30 quantity developer lifts the hair as much as 3 ranges when used with everlasting colour or lightener.
Can I exploit 10 quantity developer to lighten hair?
No. 10 quantity is for deposit solely and won’t elevate your hair colour.
What occurs if I exploit too excessive a quantity developer?
The colour processes too quick, which might trigger uneven outcomes, surprising heat, or important harm. With bleach, utilizing too excessive a quantity on compromised hair may cause breakage. Greater quantity isn’t at all times higher.
Ultimate Ideas


Choosing the proper developer comes right down to understanding two issues: what you’re beginning with and what you’re making an attempt to attain. When you perceive elevate vs deposit and the way the volumes of developer work, the choice turns into much more simple.
When unsure, go decrease. You’ll be able to at all times do one other course of when you want extra elevate, however you’ll be able to’t undo harm from going too sturdy. And when you’re ever not sure, that’s what professionals are for.
Till subsequent time,


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