We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

L'Oreal

L'Oreal Dia Light 5.66 Ruby Demi-Permanent Hair Color 1.7oz 50ml

SKU CH-G6GN-J62NZ

Ammonia-free demi-permanent gel-cream color in shade 5.66 Ruby refreshes vibrancy with luminous shine and 20-minute development

  • TypeHair Color
  • For Treatment OfNormal Hair
  • ColorMulti-Color
  • GenderAdult
  • AgeAdult
  • EcologicalHomeopathic
  • Ammonia-free gel-cream formula protects hair condition
  • Acid technology delivers luminous colour with vinyl shine
  • Tone-on-tone demi-permanent colour refreshes vibrancy between services
  • Mixes 1 to 1.5 ratio with 6, 9 or 15 volume developer
  • Processes in 20 minutes for professional results

Ruby Demi-Permanent Gel-Cream Colour

L'Oréal Dia Light 5.66 is an ammonia-free, acidic gel-cream formulated for tone-on-tone refresh on already-coloured hair. It delivers luminous ruby-brown shine and improved condition without lifting the natural base. The 50 ml tube is intended for professional salon use only.

Mixing Ratio and Development Time

Combine one part colour with one and a half parts Diactivateur at six, nine or fifteen volume. Process for twenty minutes at room temperature. Common errors include using the wrong developer strength, skipping the strand test, or exceeding the development time, which can darken the result.

Pre-Service Checks

Verify the client has previously coloured hair and no known sensitivity to oxidative dyes. Perform a skin-allergy test forty-eight hours before application. Confirm the desired shade matches the 5.66 ruby-brown target and that the correct Diactivateur volume is in stock.

Highlights

  • Ammonia-free gel-cream formula protects hair condition
  • Acid technology delivers luminous colour with vinyl shine
  • Tone-on-tone demi-permanent colour refreshes vibrancy between services
  • Mixes 1 to 1.5 ratio with 6, 9 or 15 volume developer
  • Processes in 20 minutes for professional results

Specifications

BrandDial
TypeHair Color
For Treatment OfNormal Hair
ColorMulti-Color
GenderAdult
AgeAdult
EcologicalHomeopathic

Questions about this item

How can I confirm the shade is developing correctly after mixing with Diactivateur?

After mixing at a 1 to 1.5 ratio with 6, 9 or 15 volume Diactivateur, apply and leave for 20 minutes. The gel-cream should shift to a luminous 5.66 Light Extra Red Brown with vinyl shine on the hair.

What comes in the box and what must I purchase separately?

The box contains one 1.7 oz (50 ml) tube of Dia Light 5.66 Ruby gel-cream colour. You must buy Diactivateur developer in 6, 9 or 15 volume separately for the 1 to 1.5 mixing ratio.

Which Diactivateur volume should I choose for my colour refresh?

Use 6 volume for subtle deposit on porous ends, 9 volume for standard tone-on-tone refresh, or 15 volume when more lift is needed on resistant hair. All three work with the 1 to 1.5 mixing ratio.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.