L’ORÉAL PROFESSIONNEL DIA LIGHT 7.8 MOCHA BLONDE

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L’Oréal Professionnel Dia Light 7.8 Mocha Blonde 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 enriched with 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 7.8 Mocha Blonde shade delivers a soft, neutral blonde with subtle mocha undertones, perfect for neutralizing unwanted warmth after lightening or refreshing faded lengths and ends. Ideal for glossing services to add shine, toning services to neutralize unwanted undertones, and refreshing services to revive faded color, Dia Light offers versatile service opportunities for professional stylists .
The formula provides up to 70% subtle grey coverage, ideal for maintaining a youthful look when white hair does not exceed 30% . Results last up to 6 weeks with proper care, and the demi-permanent formula gradually fades without harsh regrowth lines . The gel-cream consistency ensures precision application and even color distribution .
Mix at a 1:1.5 ratio with DIActivateur 6-vol (1.8%) for soft deposit, 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 .
This product is intended for professional use only. To use, mix 1 tube (50-60ml) of Dia Light 7.8 Mocha Blonde 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 7.8 MOCHA BLONDE

PRIMARY USES

1. Acidic Hyaluronic Gloss Color for Toning and Refreshing
  • What it does: Dia Light 7.8 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 7.8 Mocha Blonde shade delivers a soft, neutral blonde with subtle mocha undertones, ideal for neutralizing unwanted warmth after lightening or refreshing faded lengths and ends .
  • How it helps your hair: For the person who wants to neutralize brassy tones, add brilliant shine, or refresh faded color without commitment, this provides a gentle, low-risk option that enhances the hair’s natural beauty. For anyone looking to avoid the harshness of permanent color while achieving professional results, this means an ammonia-free formula with a unique acidic pH that respects the hair’s integrity .
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 compared to unwashed hair .
  • How it helps your hair: For the person whose hair feels dry or damaged from previous coloring 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, Patina & 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 brassiness in blonde or highlighted hair, this provides a toning solution that neutralizes warmth. 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. Up to 6 Weeks of Glossy, Hydrated Color
  • What it does: Dia Light provides results that last up to 6 weeks with proper care, leaving hair up to 82% glossier and deeply hydrated . The demi-permanent formula gradually fades without harsh regrowth lines, making it ideal for clients seeking low-commitment color services. For grey blending, the formula provides up to 70% subtle coverage, ideal for maintaining a youthful and luminous look when white hair does not exceed 30% .
  • How it helps your hair: For the person who wants beautiful color results without the ongoing maintenance of permanent color, this provides a low-commitment option that fades naturally. For anyone who wants to add shine and dimension without visible regrowth, this means a service that looks great as it grows out.
5. Mixable with 6, 9, or 15 Volume Developer for Customized Intensity
  • 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 intensity and service type . The 6-volume developer provides soft color deposit for natural, more transparent results; 9-volume delivers standard tone-on-tone results for correction and refreshing; and 15-volume offers stronger deposit for maximum color revelation. The 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.

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, neutral finish with mocha tones, this provides the perfect toning solution.
2. Refreshing Faded Lengths and Ends: Apply specifically to mid-lengths and ends after a permanent color root touch-up to revive faded color and ensure a seamless match, using 9 or 15 volume developer . For the person whose ends have faded faster than their roots, this provides an even, refreshed result without re-coloring the entire head.
3. 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.
4. Corrective Color and Lowlights: Suitable for corrective color applications, pre-coloration, and creating lowlights to add dimension to blonde or highlighted 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. French Blending for Grey Hair: Use in blending services to naturally blend grey hair (up to 30% white hair) without harsh coverage, creating soft contrast and dimensional tones with graceful grow-out . For the person with emerging grey who wants natural-looking blending rather than full coverage, this provides a modern, low-maintenance approach.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Brand: L'Oréal Professionnel Paris
  • Product Name: Dia Light 7.8 / Dia Light 7.8 Mocha Blonde
  • Shade: 7.8 Mocha Blonde / Medium Blonde Mocha / Blond Mocca
  • 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 formula, acidic pH technology 
  • 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 
  • Grey Coverage: Up to 70% subtle coverage (when white hair does not exceed 30%) 
  • Longevity: Up to 6 weeks 
  • Made in: France
  • EAN: 3474637323097, 3474637323240

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: Gel-cream consistency – allows for precision application and even distribution 
  • Shade Description: Mocha Blonde / Medium Blonde Mocha – neutral blonde with subtle mocha undertones 
  • Full Ingredient List: AQUA / WATER, CETEARYL ALCOHOL, GLYCERIN, PROPANEDIOL, OLEIC ACID, OLEYL ALCOHOL, COCO-GLUCOSIDE, ETHANOLAMINE, GLYCOLIC ACID, PARFUM / FRAGRANCE, m-AMINOPHENOL, HYDROXYETHYL-3,4-METHYLENEDIOXYANILINE HCL, p-AMINOPHENOL, ASCORBIC ACID, TETRASODIUM GLUTAMATE DIACETATE, XANTHAN GUM, TOLUENE-2,5-DIAMINE, SODIUM METABISULFITE, SODIUM HYALURONATE, 2-METHYL-5-HYDROXYETHYLAMINOPHENOL, PSEUDOALTEROMONAS FERMENT EXTRACT, TETRAMETHYL ACETYLOCTAHYDRONAPHTHALENES, THIOGLYCERIN, SALICYLIC ACID, SODIUM HYDROXIDE 
  • Proven Results: 2x more hydration, up to 82% glossier color, 3x less breakage on bleached hair 
  • Primary Function: Tone, refresh, and add shine 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 
  • Color: 7.8 Mocha Blonde / Medium Blonde Mocha
  • Consistency: Smooth, spreadable cream
  • Scent: Light professional fragrance
  • Finish: Glossy, shiny, hydrated, smooth, 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 (subtle shine)
6-vol (1.8%)
5-10 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 (50-60ml) of Dia Light 7.8 Mocha Blonde 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 
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
  1. Toning Service (Patina):
  • Apply to pre-lightened or balayaged hair to neutralize unwanted undertones
  • Use 9 volume developer
  • Process for up to 20 minutes
  1. 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 neutralize unwanted undertones immediately after lightening
  • For grey blending services (up to 30% white hair), use appropriate blending techniques 
  • To maintain color vibrancy and shine, 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 with 15 volume developer 

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 .