L’ORÉAL PROFESSIONNEL DIA LIGHT 9.13 VERY LIGHT GOLDEN ASH BLONDE

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L’Oréal Professionnel Dia Light 9.13 Very Light Golden Ash Blonde—also known as “Milkshake”—is an acidic demi-permanent gloss color specifically formulated to tone, refresh, and enhance color-treated or sensitized hair without ammonia or lift . This innovative formula is powered by a 1% Hyaluronic Acid complex that instantly replenishes lost moisture, providing 2x more hydration, up to 82% glossier color, and helping to preserve cortex integrity with 3x less breakage after bleach .
The 9.13 Very Light Golden Ash Blonde shade delivers a luminous, light-reflective result with a perfectly balanced blend of golden and ash reflects, creating a fresh, modern “milkshake” blonde finish . Ideal for toning highlights and balayage, glossing services, refreshing faded color, and corrective color applications, Dia Light offers versatile service opportunities for professional stylists . The ammonia-free formula does not lift hair color, focusing instead on toning, glossing, and refreshing with natural results, leaving hair 30% more conditioned .
The milky cream texture ensures precision application and even color distribution . Mix at a 1:1.5 ratio with DIActivateur 6-vol (1.8%) for soft deposit on blondes, 9-vol (2.7%) for standard tone-on-tone results, or 15-vol (4.5%) for stronger opacity . Development time ranges from 5 to 20 minutes depending on desired intensity, with results lasting up to 6 weeks .
This product is intended for professional use only. To use, mix 1 tube (50-60ml) of Dia Light 9.13 with 75-90ml of DIActivateur Developer at the desired volume, apply to dry, unwashed hair using sectioning techniques, process for 5-20 minutes, then emulsify, rinse thoroughly, and follow with a post-color shampoo . Always perform a patch test 48 hours before any coloring service.
Description

Table of Contents

L’ORÉAL PROFESSIONNEL DIA LIGHT 9.13 VERY LIGHT GOLDEN ASH BLONDE

PRIMARY USES

1. Acidic Demi-Permanent Gloss Color for Toning and Neutralizing
  • What it does: Dia Light 9.13 is an acidic demi-permanent gloss color formulated with a 1% Hyaluronic Acid complex, designed to tone, refresh, and add gloss to color-treated or sensitized hair without ammonia . The 9.13 Very Light Golden Ash Blonde shade—also known as “Milkshake” —delivers a luminous, light-reflective result with a balanced blend of golden and ash tones, making it ideal for neutralizing unwanted undertones after lightening services .
  • How it helps your hair: For the person who wants to eliminate brassy, yellow tones from their very light blonde hair while adding soft golden warmth, this provides a gentle, low-commitment solution. For anyone seeking that fresh, luminous “milkshake” blonde finish, this means an ammonia-free formula that respects the hair’s integrity while delivering professional results .
2. Enriched with 1% Hyaluronic Acid Complex for Deep Hydration
  • What it does: The formula is powered by a 1% Hyaluronic Acid complex that instantly replenishes lost moisture by enrobing the hair fiber in a hydrating film . It fights the first visible sign of damage—dryness—while providing 2x more hydration and up to 82% glossier color results . The acidic pH helps seal the cuticle, preserving cortex integrity and strengthening hair after bleach with 3x less breakage .
  • How it helps your hair: For the person whose hair feels dry or damaged from previous coloring or lightening services, this provides a gentle coloring experience that improves hair condition. For anyone who wants their color service to nourish rather than compromise their hair, this means a formula that hydrates and strengthens while it colors .
3. 3-in-1 Professional Tool: Gloss, Tone & Refresh
  • What it does: Dia Light is a 3-in-1 professional tool specifically designed for three key services: Hyaluronic Glossing adds shine and manageability; Hyaluronic Toning neutralizes unwanted undertones after lightening or balayage; and Hyaluronic Refreshing revives faded color on lengths and ends . The versatile formula allows stylists to customize results based on client needs, from subtle highlights to visible changes.
  • How it helps your hair: For the person with unwanted brassy tones in very light blonde or highlighted hair, this provides a toning solution that neutralizes warmth while adding balanced golden-ash reflects . For anyone wanting to add shine and dimension to their color between salon visits, this means a versatile product that adapts to your specific needs .
4. 9.13 Very Light Golden Ash Blonde / Milkshake Shade
  • What it does: Shade 9.13 is a Very Light Golden Ash Blonde, also known as “Milkshake” , delivering a luminous, light-reflective finish with a balanced blend of golden (3) and ash (1) tone cues. The “9.13” code indicates a Level 9 Very Light Blonde base with a balanced combination of ash and golden reflects, creating a sophisticated, multi-dimensional finish that is neither too warm nor too cool.
  • How it helps your hair: For the person wanting a fresh, luminous “milkshake” blonde that is bright and balanced without being overly warm or ashy, this provides a beautiful, sophisticated finish. For anyone who wants their blonde to look fresh, modern, and naturally radiant, this means a shade formulated for perfect tonal balance.
5. Mixable with 6, 9, or 15 Volume Developer for Customized Results
  • What it does: Dia Light mixes at a 1:1.5 ratio (1 tube color to 1.5 parts developer) with DIActivateur 6-vol (1.8%), 9-vol (2.7%), or 15-vol (4.5%) depending on desired opacity and service type . The 6-volume developer provides soft color deposit for natural, more transparent results on blondes; 9-volume delivers standard tone-on-tone results; and 15-volume offers stronger deposit for maximum color revelation . Development time ranges from 5 to 20 minutes depending on desired outcome .
  • How it helps your hair: For the stylist, this provides the flexibility to customize the opacity and intensity based on client needs. For the client, it means a tailored service that can range from a subtle gloss to a more noticeable color refresh, with results lasting up to 6 weeks .
6. Leaves Hair 30% More Conditioned with Natural Results
  • What it does: The formula leaves hair 30% more conditioned, promoting healthier and more natural-looking results . The conditioning benefit contributes to enhanced overall appearance and feel of the hair, making it soft, manageable, and radiant. The formula does not lift hair color, focusing instead on toning, glossing, and refreshing .
  • How it helps your hair: For the person who wants beautiful color results without compromising hair health, this provides a conditioning color experience. For anyone who wants their hair to feel as good as it looks, this means a formula that nourishes while it colors.

SECONDARY USES

1. Toning After Lightening Services: Apply to pre-lightened or bleached hair to neutralize unwanted yellow or brassy undertones while adding balanced golden-ash reflects using 6 or 9 volume developer, processing for up to 20 minutes . For the person who has just had highlights or balayage and wants a fresh, luminous “milkshake” finish, this provides the perfect toning solution.
2. Glossing Service: Apply to all-over hair for 5-20 minutes to add intense shine, improve manageability, and deposit subtle color reflection without altering the base shade . For the person who wants a “gloss” service between color appointments, this provides a quick, low-commitment shine boost.
3. Refreshing Faded Lengths and Ends: Apply specifically to mid-lengths and ends after a permanent color root touch-up to revive faded very light blonde color and ensure a seamless match, using 9 or 15 volume developer . For the person whose very light blonde ends have faded faster than their roots, this provides an even, refreshed result.
4. Corrective Color and Lowlights: Suitable for corrective color applications, pre-coloration, and creating dimensional lowlights to add depth to very light blonde or platinum hair . For the person wanting to add depth and contrast to their color without a full-color service, this provides a versatile option for dimensional results.
5. Pre-Coloration Treatment: Apply before permanent color to even out porosity and improve color absorption on porous ends. For the person whose color turns out darker on the ends than at the roots, this provides a preparatory step that creates a more uniform canvas.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Brand: L'Oréal Professionnel Paris
  • Product Name: Dia Light 9.13 / Dia Light 9.13 Very Light Golden Ash Blonde
  • Shade: 9.13 Very Light Golden Ash Blonde / 9.13 Milkshake / Sehr Helles Blond Asch Gold 
  • Product Type: Acidic demi-permanent gloss color / Semi-permanent hair color 
  • Key Benefits: 2x more hydration, up to 82% glossier color, 3x less breakage, ammonia-free, vegan, leaves hair 30% more conditioned 
  • Key Ingredient: 1% Hyaluronic Acid Complex 
  • Formula Integrity: Ammonia-free, vegan, up to 96% naturally derived ingredients 
  • Volume: 50ml - 60ml 
  • Mixing Ratio: 1:1.5 (50-60ml color to 75-90ml developer) 
  • Recommended Developers: DIActivateur 6-vol (1.8%), 9-vol (2.7%), or 15-vol (4.5%) 
  • Processing Time: 5 to 20 minutes 
  • Longevity: Up to 6 weeks 
  • Grey Coverage: Subtle coverage up to 70% 
  • Made in: France 
  • Product Codes: EAN 3474637004767 , EAN 3474637319984 , EAN 3474637320041 

2. TECHNICAL & FORMULATION PROPERTIES

  • Key Technology 1: 1% Hyaluronic Acid Complex – instantly replenishes lost moisture and fights dryness 
  • Key Technology 2: Acidic pH technology – seals the cuticle, preserves cortex integrity, and creates glossy finish 
  • Key Technology 3: Milky cream texture – allows for precision application and even distribution 
  • Shade Description: Very Light Golden Ash Blonde / Milkshake – luminous, balanced blend of golden and ash reflects 
  • Proven Results: 2x more hydration, up to 82% glossier color, 3x less breakage on bleached hair, 30% more conditioned 
  • Zero Lift: Does not lift natural hair color 
  • Primary Function: Tone, refresh, and add gloss to color-treated or sensitized hair with gentle, ammonia-free formula
  • Application: Mix 1:1.5 with DIActivateur developer, apply to dry, unwashed hair, process 5-20 minutes, emulsify, rinse

3. PHYSICAL ATTRIBUTES

  • Product Form: Cream hair color / Gel-cream 
  • Texture: Milky, creamy, smooth gel-cream consistency, feels more like a treatment than a color 
  • Color: 9.13 Very Light Golden Ash Blonde / Milkshake
  • Consistency: Smooth, spreadable cream
  • Scent: Light professional fragrance 
  • Finish: Luminous, glossy, balanced golden-ash tones, neutralized
  • Packaging: Tube (50ml-60ml)

4. HOW TO USE

For Professional Use Only:
This product must be used by a qualified hair professional. Do not use at home .
Preparation:
  1. Wear suitable protective gloves
  2. Use a non-metallic bowl and brush for mixing
  3. Do not use on persons under 16 years of age
  4. Perform a patch test 48 hours before each coloring service
Developer Selection by Service Type:
Service Type
Developer Volume
Processing Time
Glossing / Soft deposit (blondes)
6-vol (1.8%)
5-10 minutes 
Toning / Neutralizing
9-vol (2.7%)
10-20 minutes 
Grey coverage / Strong deposit
15-vol (4.5%)
15-20 minutes 
Mixing:
  • Mix 1 tube (50-60ml) of Dia Light 9.13 with 75-90ml of DIActivateur Developer
  • Mixing ratio: 1:1.5 (50-60ml color to 75-90ml developer) 
  • Mix thoroughly until a homogeneous, creamy consistency is achieved
  • When using a shaker (bottle), open immediately after mixing to prevent pressure buildup and overflowing 
Three Key Service Applications :
  1. Hyaluronic Glossing: Apply globally to add shine and increase manageability; use 6 or 9 volume developer; process for 5-20 minutes
  2. Hyaluronic Toning (Patina): Apply to pre-lightened or balayaged hair to neutralize unwanted undertones while adding balanced golden-ash reflects; use 9 volume developer; process for up to 20 minutes
  3. Hyaluronic Refreshing: Apply to lengths and ends to revive faded color after root touch-up; use 9 or 15 volume developer; process for 15-20 minutes
Rinse and Finish:
  1. At the end of the processing time, gently emulsify by adding a small amount of lukewarm water 
  2. Rinse thoroughly until water runs clear
  3. Follow with a post-color shampoo (Metal Detox or Vitamino Color Spectrum) 
Pro Tips:
  • Do not use metallic tools (bowl, comb) during mixing or application 
  • For best results on pre-lightened or bleached hair, use Dia Light to tone immediately after lightening
  • The "Milkshake" shades (Level 9 & 10) are specifically formulated for toning and glossing blondes after lightening service in just 2-10 minutes 
  • To maintain color vibrancy and balanced golden-ash tones, recommend clients use Metal Detox or Vitamino Color Spectrum shampoo
  • The color of the mixture will change during development time; this is normal and has no effect on the final color result
  • Always read the package insert before use
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

  • For Professional Use Only: This product is a professional chemical color and must only be used by trained professionals
  • Hair dyes can cause severe allergic reactions
  • Patch Test: A patch test is obligatory 48 hours before each use. Apply a small amount of color on a sensitive area of skin, such as the inside of the elbow. If after 48 hours no reaction is observed, proceed with the full application
  • Protection: Wear suitable protective gloves during the entire mixing and application process 
  • Do Not Use If: The client has a rash on the face, sensitive/irritated/damaged scalp, has ever experienced a reaction after coloring their hair, or has ever experienced a reaction to a temporary "black henna" tattoo
  • Not for Use on: Eyelashes, eyebrows (may cause blindness), or persons under 16 years of age
  • If the product comes into contact with your eyes, wash immediately and thoroughly with water
  • Storage: Keep out of reach of children. Store upright in a cool, dry place away from direct light and heat
  • Do Not Inhale or Swallow: Avoid inhalation and ingestion
  • Mixing: Do not use metal utensils during coloring (bowl, tweezers, combs, etc.) 
  • Compatibility: Use exclusively with L'Oréal Professionnel DIActivateur developers (6, 9, or 15 volume) 
  • Henna Precaution: Not recommended for use on hair previously treated with henna or progressive color products
  • Post-Chemical Treatment: Wait at least 2 weeks after a perm, straightening, or smoothing treatment before applying

2. FIRST AID MEASURES

  • Eye Contact: If product enters eyes, rinse immediately with plenty of clean, lukewarm water for at least 15 minutes. Remove contact lenses if present and easy to do. If irritation persists, seek medical attention.
  • Skin Contact: If product contacts skin, wash off immediately with soap and water. If irritation or redness develops, seek medical advice.
  • Ingestion: This product is not intended for ingestion. If accidentally swallowed, rinse mouth with water and drink a glass of water. Do not induce vomiting. Seek medical attention immediately.
  • Inhalation: If respiratory discomfort occurs, move to fresh air. Seek medical attention if symptoms persist.
  • Allergic Reaction: Signs may include rash, hives, itching, swelling of the face, lips, tongue, or throat, difficulty breathing, or dizziness. If an allergic reaction is suspected, discontinue use immediately, rinse thoroughly, and seek emergency medical attention.