L’ORÉAL PROFESSIONNEL DIA LIGHT 10.01 LIGHTEST NATURAL ASH BLONDE (MILKSHAKE)

WhatsApp Order
L’Oréal Professionnel Dia Light 10.01 Lightest Natural Ash Blonde—also known as “Natural Iced 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 1.9x more hydration, 82% glossier color, and a vinyl shine finish .
The 10.01 Lightest Natural Ash Blonde shade delivers a clean, cool, neutralized very light blonde result—perfect for neutralizing unwanted yellow undertones after lightening services or refreshing faded color on lengths and ends. The double-code “.01” combines natural and ash reflects for a balanced, sophisticated finish that eliminates warmth while maintaining a natural look .
Ideal for toning highlights and balayage, glossing services, refreshing faded color, and creating pastel blonde shades, 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.
The milky cream texture ensures precision application and even color distribution . Mix at a 1:1.5 ratio (1 tube color to 1.5 parts developer) 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 2 to 20 minutes depending on desired intensity, with results lasting up to 6 weeks. Not for grey coverage—please refer to Dia Richesse for white hair coverage .
This product is intended for professional use only. To use, mix 1 tube (50ml) of Dia Light 10.01 with 75ml of DIActivateur Developer at the desired volume, apply to dry, unwashed hair using sectioning techniques, process for 2-20 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 10.01 LIGHTEST NATURAL ASH BLONDE (MILKSHAKE)

PRIMARY USES

1. Acidic Demi-Permanent Gloss Color for Toning and Neutralizing
  • What it does: Dia Light 10.01 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 10.01 Lightest Natural Ash Blonde shade—also known as “Natural Iced Milkshake”—delivers a cool, sophisticated ash result with a clean, neutral finish, making it ideal for neutralizing unwanted yellow undertones after lightening services .
  • How it helps your hair: For the person who wants to eliminate brassy, yellow tones from their very light blonde or platinum hair while maintaining a natural, neutral finish, this provides a gentle, low-commitment solution. For anyone seeking that fresh, “icy” blonde look without the harshness of permanent color, 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 1.9x more hydration and 82% glossier color results . The acidic pH helps seal the cuticle, preserving cortex integrity and providing vinyl shine .
  • 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: glossing adds shine and manageability; toning neutralizes unwanted undertones after lightening or balayage; and 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 brassiness in very light blonde or highlighted hair, this provides a toning solution that neutralizes warmth while adding clean, natural 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. 10.01 Lightest Natural Ash Blonde / Natural Iced Milkshake Shade
  • What it does: Shade 10.01 is a Lightest Natural Ash Blonde, also known as “Natural Iced Milkshake” . The double-code “.01” indicates a combination of natural (0) and ash (1) reflects, delivering a clean, neutralized very light blonde with a cool, iced finish that eliminates warmth while maintaining a natural look.
  • How it helps your hair: For the person wanting a clean, cool very light ash blonde that eliminates yellow and brassy tones while staying natural-looking, this provides a beautiful, sophisticated finish. For anyone who wants their blonde to look fresh, modern, and cool-toned without being too grey or silver, this means a shade formulated for perfect balanced neutralization.
5. Provides Zero Lift, Ideal for Toning Pre-Lightened Hair
  • What it does: Dia Light provides zero lift, making it safe for use on pre-lightened or bleached hair without causing additional damage . The formula is specifically designed for deposit-only results, adding tone and shine without altering the hair’s underlying level.
  • How it helps your hair: For the person who has just had highlights, balayage, or a full lightening service, this provides a gentle toning solution that won’t further compromise the hair. For anyone with fragile, bleached hair, this means a safe way to neutralize unwanted warmth and achieve the perfect cool blonde finish.
6. 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 2 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.

SECONDARY USES

1. Toning After Lightening Services: Apply to pre-lightened or bleached hair to neutralize unwanted yellow or brassy undertones 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 clean, cool 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 ash 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. Pastel Colour Creation: Mix with Dia Light Clear or Foundation 0 to create custom pastel tones, using higher proportions of Clear for softer pastels . For the person wanting a soft, dreamy pastel blonde, this provides a customizable solution.
5. NOT FOR GREY COVERAGE: This product is not designed for grey coverage; for white hair coverage of up to 70%, L’Oréal Professionnel recommends Dia Richesse . This shade is specifically formulated for toning and glossing pre-lightened or color-treated hair.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Brand: L'Oréal Professionnel Paris
  • Product Name: Dia Light 10.01 / Dia Light 10.01 Lightest Natural Ash Blonde
  • Shade: 10.01 Lightest Natural Ash Blonde / Natural Iced Milkshake / 10.01/10NB 
  • Product Type: Acidic demi-permanent gloss color / Semi-permanent hair color
  • Key Benefits: 1.9x more hydration, 82% glossier color, 2x less breakage, ammonia-free, zero lift, vinyl shine 
  • Key Ingredient: 1% Hyaluronic Acid Complex 
  • Formula Integrity: Ammonia-free
  • 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: 2 to 20 minutes 
  • Longevity: Up to 6 weeks 
  • Grey Coverage: Not for grey coverage (use Dia Richesse for up to 70% white hair coverage) 
  • Made in: France
  • Not for: Use on eyelashes or eyebrows 

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 vinyl shine 
  • Key Technology 3: Milky cream/gel texture – allows for precision application and even distribution 
  • Shade Description: Lightest Natural Ash Blonde / Natural Iced Milkshake – clean, cool, neutralized very light blonde with natural and ash reflects 
  • Proven Results: 1.9x more hydration, 82% glossier color, 2x less breakage 
  • 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 2-20 minutes, emulsify, rinse

3. PHYSICAL ATTRIBUTES

  • Product Form: Cream hair color / Gel-cream
  • Texture: Milky, creamy, smooth gel-cream consistency 
  • Color: 10.01 Lightest Natural Ash Blonde / Natural Iced Milkshake
  • Consistency: Smooth, spreadable cream
  • Scent: Light professional fragrance
  • Finish: Cool ash tones, high-shine, glossy, neutralized, vinyl-like 
  • Packaging: Tube (50ml)

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
6-vol (1.8%)
2-10 minutes
Toning / Neutralizing
9-vol (2.7%)
10-20 minutes
Refreshing Faded Color
9-vol or 15-vol
15-20 minutes
Mixing:
  • Mix 1 tube (50ml) of Dia Light 10.01 with 75ml of DIActivateur Developer 
  • Mixing ratio: 1:1.5 (50ml color to 75ml 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. Glossing Service: Apply globally to add shine and increase manageability; use 6 or 9 volume developer; process for 5-20 minutes
  2. Toning Service (Patina): Apply to pre-lightened or balayaged hair to neutralize unwanted warm and brassy undertones; use 9 volume developer; process for up to 20 minutes 
  3. Refreshing Service: 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
  • Works effectively on level 9-10 light blonde to achieve an ashy blonde result 
  • To maintain color vibrancy and cool ash tones, recommend clients use sulfate-free, color-safe products 
  • 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 .