
Frequently Asked Questions
8 and 10 volume developers are used for deposit only.
Yes, the same tube can provide both permanent and demi-permanent results depending upon the developer being used.
- Levels 1–6: ~1.5% ammonia
- Levels 7–9: ~2.1% ammonia
- Level 10: ~2.4% ammonia
- Super Lighteners: ~3% ammonia
The Juvexin Cream Color line offers 125 versatile shades, including natural, ash, gold, reds, super lighteners, and fantasy tones.
GK Hair Color is enriched with Juvexin (a keratin protein blend) and ceramides, which help protect and strengthen the hair during coloring, leaving it soft, shiny, and manageable.
Yes. GK Hair Color provides 100% grey coverage, especially in its Intense Series.
- Levels 1–10: 1 part color : 1.5 parts developer
- Super Lighteners: 1 part color : 2 parts developer
Yes. With the appropriate developer, it can lift natural pigment up to a certain level. For higher lift, use GK Lighteners like Miami Beach Bombshell Clay Lightener, Juvexin Lightening Cream, Juvexin Lightening Powder+, Juvexin Lightening Powder Masque or Juvexin Lightning Powder Zero with Argan oil.
Yes. It can be used on all hair types, but it’s especially recommended to do a patch test if you have allergens, pair it with GK Hair’s aftercare range (shampoos, conditioners, masks) to maintain results and keep hair healthy.
Yes, but results may vary depending on the condition and color history of the hair. Pre-lightening or corrective color services may be required for the best outcome.
With proper aftercare, GK Hair Color delivers long-lasting results with vibrant shine. Using color-safe, sulfate-free products helps extend longevity.
Gk hair Colors are versatile, you can use the same tube of color and pair it with 8 or 10 volume developer for Semi- permanent results and pairing the same tube of color with a 20,30,40 volume developer will give you permanent results.


