Permanent hair color
Posted by: jessica on: December 17, 2008
Ever wanted to know what the difference is between demi, semi and permanent hair color (apart from the obvious 
) then let me point you to this nice little article here..
And yes I know I seem to be linking to my / our / her sites alot but im simply trying to gather all the information together from our sites into one place so we can concentrate on keping this site up to date 
Its just easier to link to them thats all
heres that great article about demi, semi and permanent hair color and how hair color products work.
How Do Hair Coloring Products Work
Enjoy
2 Responses to "Permanent hair color"
July 28, 2010 at 8:53 am
Your Article was so much better than this one one posted same day same page! Semi some times known as Demi!!! da so very different in application and results! hope you agree stuff like this scary! thanks
Hair color procedures come in many forms. Semi-permanent (sometimes called Demi Color) is one of my favorites. This color does not enter the hair cuticle, it’s a non-ammonia, low peroxide hair color that only affects the outside of the hair shaft. It won’t lighten hair but can cover some grey. I love to use it because it does not have any damaging effect on the hair, in fact it gives hair brightness and shine and makes hair look fresh and less frizzy. It’s a great process for men also as it can cover grey without looking like a guy who’s coloring his hair (which is what most men want)! It’s very natural looking.
I love doing hair color because it has the power to change how people look and feel. In my salon, over 80% of my clients get color. I’ve been doing hair color for over 35 years and still love going to work every day!
I’ve seen every change and new process in the hair salon business and change is what makes the business so exciting for me. I love sharing these changes with my clients, going to advanced hair classes and learning all the new hair trends and treatments.
Semi-permanent hair color is not exactly new but it will make you fell like you’ve got a brand new, fresh look and make your hair look healthy and shiny as well.
July 28, 2010 at 8:44 am
Had a look great article most informative But a Demi formulation may well have ammonia or another alkaline in in it, as you stated the colour molecules deposit in the cortex to get in to the cortex the cuticle has to be opened hence need for alkaline such as ammonia to create this environment the colour molecules then develop when they meet with the peroxide. stimulating them to swell and develop.
The ammonia or alkaline create the environment for the colour molecules to enter the hair the peroxide reacts with the molecules swelling the new colour
It is the peroxide that lifts hair not Ammonia over time a Demi application can lighten hair given that the peroxide level is around 5vol. This lightening will only occur with prolonged use and over lapping!Thanks for the article Mike B2MR