Evesel Bottle Capacity Oxidizer
EVESEL Gold Hair Color kits include a large-capacity oxidiser bottle alongside each 120 ml colour tube, giving you enough developer for a full application on long or thick hair without buying a separate developer. Whether you are colouring roots, refreshing faded mid-lengths, or going from dark to light, the bundled high-capacity developer takes the guesswork out of measuring.
By Skinsli editorial Updated
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Buying guide
Understanding the EVESEL Gold Hair Dye Oxidiser: What You Get and How to Use It
Every EVESEL Gold Hair Color kit ships with a high-capacity oxidiser bottle - the developer component that activates the permanent colour. Unlike travel-sized developer sachets that run short on longer hair, EVESEL's bundled oxidiser bottle is sized to cover a full head of shoulder-length to long hair in a single application. This guide explains how oxidisers work, how to use the one included with EVESEL Gold, and which shades come with which developer strength.
What Is a Hair Colour Oxidiser?
The oxidiser - also called a developer or activator - is a hydrogen peroxide solution that does two jobs when mixed with permanent hair colour cream. First, it opens the hair cuticle to allow the colour molecules to enter the cortex. Second, it oxidises the colour precursors inside the hair shaft, converting them into permanent, larger dye molecules that cannot be washed out. Without the oxidiser, the colour pigments in the tube remain inactive and produce no lasting colour change.
Oxidiser strength is measured in volume or percentage: 10 vol (3%), 20 vol (6%), 30 vol (9%), and 40 vol (12%). Higher volumes lift more and deposit less - they are used for lightening rather than colouring.
What Volume Developer Does EVESEL Include?
EVESEL Gold kits use a 20 vol (6%) oxidiser as the standard included developer. This is the industry-standard strength for permanent colour that deposits tone, covers grey, and provides one to two levels of lift on natural hair. The 12G Highlighter shade comes with a high-capacity developer matched for high-lift chemistry - effectively a 30-40 vol equivalent - to deliver the extra lift needed for very light blonde results. Check the kit packaging for the specific volume when ordering the 12G.
Why the Large-Capacity Bottle Makes a Difference
Standard retail hair dye kits include a developer bottle sized for short to medium-length fine hair - often 60 to 80 ml of mixed colour, which is insufficient for thick or long hair. When you run out of developer mid-application, you either rush or leave sections uncoloured, both of which create uneven results. EVESEL's large-capacity oxidiser bottle holds enough developer to mix with the full 120 ml colour tube and leaves some margin. One kit reliably covers a full head of hair at shoulder length or below.
How to Mix the Included Oxidiser
Mix in a clean, non-metallic bowl - metal can react with the hydrogen peroxide and degrade the developer. The standard ratio is 1:1 (one part colour to one part developer). For the 12G high-lift shade, you can increase to 1:1.5 to maximise the lifting action. Do not pre-mix and store the combination: once colour meets developer, the reaction starts immediately. Mix only what you will use and apply within 30 minutes of mixing.
- Squeeze the full 120 ml colour tube into the bowl.
- Pour an equal volume from the oxidiser bottle.
- Stir with the applicator brush until the mixture is uniform - no streaks of colour cream remaining.
- Apply immediately to dry, product-free hair, working from roots to ends.
Which Shades Are Included in This Collection
The 12 available shades, each shipped with a large-capacity oxidiser bottle:
- 5N Natural Brown
- 5V Dark Violet Blonde
- 6G Dark Golden Blonde
- 6V Bright Violet Blonde
- 8G Bright Golden Blonde
- 9N Ultra Light Tan
- 12G Highlighter (high-lift)
- Control Line GP Wine
- Control Line AG Grey
- Control Line TS Silver
Select by the target depth and tone: N shades are neutral, G shades are golden-warm, V shades are cool violet-blonde, and Control Line addresses grey coverage and toning. Depth numbers run from 5 (dark) to 12 (ultra-light).
Using Multiple Kits on Very Long or Thick Hair
For waist-length, very thick, or curly hair, plan to purchase two kits. The oxidiser from both bottles gives you a combined 240 ml of developer - ample even for the most voluminous hair. Mix each 120 ml colour tube with its matched developer bottle separately, apply the first batch, and immediately move to the second without letting the first batch dry out. Work quickly - colour cream should not sit in the bowl for more than 30 minutes.
Oxidiser Shelf Life and Storage
Unopened, the oxidiser bottle is stable for 24 to 30 months from manufacture date. Once opened and partially used, hydrogen peroxide gradually decomposes on exposure to air and light - store any leftover developer in the original, tightly capped bottle in a cool dark place and use within three to four months. Never transfer oxidiser to a clear or transparent container. Do not freeze. If the developer has a noticeably thin consistency or smells strongly of peroxide when the bottle is opened, discard it rather than risk an uneven colour result.
Safety and Skin Patch Testing
Both the colour cream and the oxidiser contain sensitising agents. Always perform a patch test 24 to 48 hours before a full application: mix a small amount of each in the correct ratio, apply behind one ear and to the inner elbow, and check for any redness, itching, or swelling before proceeding. Wear the included gloves throughout application. Keep the mixture away from eyes - rinse immediately with cold water if contact occurs, and seek medical advice if irritation persists. The oxidiser alone (undiluted developer) can lighten skin temporarily on contact; rinse any skin drips immediately.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
What volume developer is included with EVESEL Gold Hair Color kits?
Most EVESEL Gold shades (5N through 9N and all Control Line variants) include a 20 vol (6%) developer - the industry-standard strength for permanent colour that deposits tone and covers grey. The 12G Highlighter shade includes a high-capacity, higher-volume developer matched for the extra lift its high-lift formula requires. Check the product page for the specific volume if you need to match it with a separate developer purchase.
How much developer does the EVESEL large-capacity oxidiser bottle contain?
The large-capacity developer bottle included with each EVESEL Gold kit holds enough developer to mix at a 1:1 ratio with the full 120 ml colour tube, with volume to spare. This is larger than the 60-80 ml developer sachets found in most standard retail kits. A single kit covers a full head at shoulder length; for longer or very thick hair, purchase two kits and use both developer bottles.
What is the correct mixing ratio for EVESEL colour and developer?
The standard ratio is 1:1 - equal parts colour cream to developer. Mix in a non-metallic bowl using the applicator brush until the colour is uniform with no streaks. For the 12G Highlighter, you can use 1:1.5 (one part colour to 1.5 parts developer) to boost lifting power on resistant hair. Do not exceed 1:2, as a thinner mixture runs during application and develops unevenly. Apply the mixed colour within 30 minutes of combining.
Can I substitute a different developer instead of the included bottle?
Yes, but only use a hydrogen peroxide developer from the same volume range as the original. Match 20 vol for standard shades and 30-40 vol for the 12G high-lift. Using a lower-volume developer will reduce lift and may cause patchy colour; using a higher-volume developer than recommended increases the risk of scalp irritation and unpredictable lift results. The EVESEL included developer is calibrated to the colour formula, so it is always the safest choice.
Can I save unused developer after opening the bottle?
Yes. Recap the bottle tightly and store it in a cool, dark place. Once opened, hydrogen peroxide degrades on exposure to air and light. Use any leftover developer within three to four months of opening for reliable results. Discard if the liquid smells strongly of peroxide when you open it or is noticeably thinner than normal. Never mix pre-measured developer ahead of time and store it - always mix immediately before application.
Do all EVESEL shade kits include the large-capacity oxidiser bottle?
Yes. All 12 shades in the EVESEL Gold range available on skinsli ship with a large-capacity developer bottle. The volume of the oxidiser varies by shade - most are 20 vol, and the 12G Highlighter includes a higher-volume developer for maximum lift. The capacity in all cases is larger than typical single-use sachets found in budget retail kits.
Is the hair dye developer safe to use at home?
Yes, when used as directed. The oxidiser contains hydrogen peroxide at cosmetic concentrations (6-12% depending on shade). Wear the included gloves throughout mixing and application. Keep the mixture away from eyes and rinse any skin drips immediately with cold water. Always perform a patch test 24-48 hours before full application to check for sensitivity to either the colour cream or the developer. The included gloves and applicator brush are designed for at-home use.
Which EVESEL developer strength should I use for highlights or balayage?
For highlights or balayage where maximum lift is needed, choose the 12G Highlighter shade kit - it includes the high-lift developer matched for lightening work. Alternatively, you can use a separate 30 vol developer with the lighter Gold shades (8G, 9N) for a controlled one-to-two level lift on individual sections. For traditional foil highlights, apply the mixture to each section, wrap in foil, and check progress every 10 minutes from the 20-minute mark to avoid over-processing.
Do I need to patch test before using EVESEL Hair Color?
Yes. EVESEL Gold permanent dye contains oxidative colour precursors including para-phenylenediamine (PPD), which are among the most common contact allergens in hair dye. Mix a small amount at the standard 1:1 ratio, apply behind one ear and inside one elbow, and leave for 24 to 48 hours. Any redness, itching, burning, or swelling means you should not proceed with the full application. Patch test even if you have used other permanent dyes before - sensitivity can develop at any time.
How many EVESEL Gold shades are available on skinsli?
Skinsli stocks 12 EVESEL Gold Hair Color shades, covering natural brunettes (5N), golden blondes (6G, 8G, 12G Highlighter), cool violet blondes (5V, 6V), ultra-light natural blonde (9N), and the Control Line series for toning and grey coverage (GP Wine, AG Grey, TS Silver). Each is available as a complete kit with colour tube and large-capacity developer.
Does the included oxidiser provide full grey and white hair coverage?
Yes, when used with the appropriate shade. The 20 vol developer included with most EVESEL Gold shades provides enough oxidation to achieve full grey coverage at the standard 30-45 minute development time. Control Line GP Wine and AG Grey are the dedicated grey-coverage shades - both are formulated to penetrate resistant grey and white strands. For stubborn, very coarse grey hair, extend development to 50 minutes rather than increasing developer volume.
Where does skinsli source EVESEL hair colour products?
Skinsli imports EVESEL products directly through authorised Korean B2B wholesale channels and ships them to US customers in original, sealed packaging. Each box includes the manufacturer's batch code and expiry date in line with Korean cosmetics labelling law. Products are not repacked or relabelled.