The L’Oréal Pro Dia Color ammonia-free alkaline demi-permanent hair colour in shade 7.3 Medium Golden Blonde is specifically designed to provide warm, luminous, and multidimensional reflects. This professional formula directly acts against melanin loss, providing a visible colour gloss* effect that enhances the beauty of warm tones and lasts up to 6 weeks.
Technology and Performance
The advanced melanin replenishment technology of this product replicates the colour of natural melanin and effectively fills the gaps left by hair ageing. Incorporating up to 92% naturally-derived ingredients, this alkaline base can lighten hair by up to 1 level and darken by up to 4 levels. The creamy texture ensures maximum yield and smooth glide during technical application.
Technical Specifications
Product Type: Ammonia-free alkaline demi-permanent hair colour
Shade: 7.3 Medium Golden Blonde
Size: 60ml
Hair Type: All hair types and textures
Need: Extreme shine, grey coverage, and creation of warm golden reflects
Texture: Creamy
Grey Coverage: Up to 70% coverage
Shine: 3x more shine
Technology: Lost melanin replenishment technology
Processing Time: 20 minutes
Recommended Developer: Dia Activateur 6 vol. (1.8%), 9 vol. (2.7%) or 15 vol. (4.5%)
Professional Use: Yes
Highlights, Care or Additional Benefits
Ensures hair with 3x more shine and pure golden reflects.
Ensures a personalised service with a palette that perfectly adapts to dull lengths and ends.
Eco-friendly packaging with 36% less plastic material, an annual saving of 27 tonnes of paper, produced from recycled cardboard and with a 95% post-recycled aluminium tube.
Expert Tip
Shade 7.3 Medium Golden Blonde offers total versatility in salon techniques. Always mix in a 1 + 1.5 ratio. Opt for Dia Activateur 9 vol. to create a balanced richness of reflects on natural blonde or light brown hair; or use Dia Activateur 15 vol. to enhance intensity and achieve a deep golden reflect. It is the perfect solution for clients seeking their first colour with low maintenance.
Shade samples are merely indicative, as they may vary depending on the computer screen used for viewing. Therefore, Pluricosmética disclaims any responsibility for potential colour variations that may arise.
Preparation: Wear protective disposable gloves. Do not use metal tools (bowls, brushes, or combs). Use strictly in conjunction with the recommended Dia Activateur.
Mixing: In a non-metallic bowl, shaker, or applicator bottle, combine 60 ml of Dia Color cream (1 tube) and add 90 ml of Dia Activateur in the selected volume (6 vol., 9 vol. or 15 vol.).
Application and Processing Time: Apply to dry hair.
First application: Leave to process for 20 minutes after completing the full application.
Root retouch: Apply strictly to the roots. Allow a total processing time of 20 minutes and, depending on the hair condition, distribute immediately through the lengths and ends to darken or deepen; distribute after 10 minutes if there is moderate fading; or emulsify during the final 5 minutes if fading is slight.
Emulsify and Rinse: Once the processing time is complete, thoroughly emulsify for a few minutes. Rinse thoroughly until the water runs clear. Then wash the hair with Metal Detox shampoo.
Hair colourants can cause severe allergic reactions.
Read and follow instructions.
Perform a preliminary allergy test 48 hours before applying any hair colour. If no irritation occurs, proceed with the application.
Read the enclosed leaflet carefully.
This product should not be used on persons under 16 years of age.
For professional use only.
Wear suitable gloves. If the product comes into contact with eyes, rinse immediately and thoroughly with water.
Do not use to colour eyelashes or eyebrows.
Keep out of reach of children.
Do not use on irritated, broken skin or if there are lesions on the scalp.
In case of irritation or allergic reaction, discontinue use and consult a doctor.
For external use only. Do not ingest.
Store in a cool, dry place, away from direct sunlight.
Comply with the storage conditions and expiry date indicated on the packaging.
Temporary 'black henna' tattoos may increase the risk of allergy.
Do not colour the client's hair if they: have a rash on their face or a sensitive, irritated, or damaged scalp; have ever experienced a reaction after colouring their hair; have ever experienced a reaction to a temporary 'black henna' tattoo.
IT IS MANDATORY TO PERFORM THE ALLERGY ALERT TEST IMPERATIVELY 48 HOURS BEFORE EACH USE OF THIS PRODUCT (follow the leaflet).
Rinse eyes immediately and thoroughly with water if the product comes into contact with them.
Rinse hair well after application.
Wait 15 days after a relaxing treatment, a perm, or a long-lasting straightening treatment before applying hair colour.
Do not use on hair coloured with henna or a progressive colourant.
Latest update: 2026-06-17 11:14:10
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