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Description
Ingredients
Product Details
*Packaging may appear different due to brand manufacturer update.
What it is:
L’Oreal Pro Paris Dia Light is an ammonia-free demi-permanent gel-creme hair dye used to tone, gloss and refresh your hair color. It is a tone-on-tone hair dye that creates glossy, luminous looking reflects, an incredible vinyl shine and natural-looking color that gradually fades away.
What it does:
Its gentle acid technology smooths the hair cuticle for ultimate shine. The L’Oreal Pro Paris Dia Light is perfect for refreshing previously color-treated or weakened hair. Once applied to your hair, the Pro Paris Dia Light color gently penetrates the hair strands. Simultaneously, the cationic polymers produce a resurfacing effect to the hair cuticle, creating glossy, beautiful results.
What else you need to know:
DIA light can be used after all lightening treatments. Not a product for covering white hair. Development time 2 - 20 minutes. Zero lift.
*Ingredients may vary slightly due to formula updates by brands. Please consult packaging for most accurate list of ingredients
Product Recommendations
Frequently Asked Questions
Yes, L'Oreal Pro Paris DIA Light is specifically formulated without ammonia, making it a gentler option for sensitive scalps. The ammonia-free formula reduces harsh odors and scalp irritation compared to traditional dyes. However, we recommend performing a patch test 48 hours before application, especially if you have a history of scalp sensitivity or allergies.
As a demi-permanent color, L'Oreal Pro Paris DIA Light typically lasts 24 shampoos or about 4-6 weeks, depending on hair porosity and maintenance. The gel-crème formula gradually fades with each wash rather than leaving harsh demarcation lines. Color longevity varies based on your natural hair shade and the shade you choose.
Yes, L'Oreal Pro Paris DIA Light works well on pre-lightened and color-treated hair. The demi-permanent formula is suitable for maintaining blonde shades or applying new tones to previously colored hair. For best results on heavily processed hair, ensure hair is in good condition and perform a strand test first to see how the shade develops.











