What should be done before applying a virgin sodium hydroxide relaxer?
1. prep. Wash hands with hot soapy water 2. analysis of hair and scalp porosity and elasticity, to check for porosity you need to run your fingers down the hair and to check for elasticity stretch the hair, it should stretch up to 50%.
What does sodium hydroxide relaxer do to the hair?
A – Sodium hydroxide (lye) relaxer – used to straighten tightly curled hair. This type of relaxer is alkaline in pH (11.5 to 14), which forces the cuticle to open so that the relaxer can penetrate in the cortex layer of the hair. Once there, the sodium hydroxide breaks down the cross bonds (sulfur and hydrogen).
What is the best way to apply hair relaxer?
Apply the relaxer to the new growth in small sections.
- If you’ve never applied relaxer before, you’ll be coating all of your hair. If you have, then you should only be applying it to your roots.
- Avoid getting the relaxer on your scalp.
- Don’t apply the relaxer to the parts of your hair that aren’t new growth.
How far away from the scalp should a virgin relaxer be applied?
¼ inch to ½ inch away
Virgin Application Only Apply relaxer ¼ inch to ½ inch away from the scalp (distance from the scalp will be determined during hair shaft analysis) and up to the porous ends (CAUTION: DO NOT APPLY RELAXER ON THE CLIENT’S SCALP).
How long does it take to apply a relaxer?
Ten to 15 minutes
Be sure to work quickly and carefully within the processing time for your chosen relaxer. Ten to 15 minutes is usually sufficient and anything longer can cause damage.
Can I use relaxer without activator?
A neutralizing shampoo is typically used during the process of relaxing the hair. Another pro of using a lye relaxer is that it does not need to be mixed with an activator, like no-lye relaxers. It is ready to use and can be used multiple times.
How long should a relaxer sit in your hair?
Be sure to work quickly and carefully within the processing time for your chosen relaxer. Ten to 15 minutes is usually sufficient and anything longer can cause damage. If you feel tingling and burning, you’ve waited too long to rinse the relaxer out of your hair.
Where is sodium hydroxide found in the US?
In the United States, the major producer of sodium hydroxide is Olin, which has annual production around 5.7 million tonnes from sites at Freeport, Texas, and Plaquemine, Louisiana, St Gabriel, Louisiana, McIntosh, Alabama, Charleston, Tennessee, Niagara Falls, New York, and Becancour, Canada.
What is the pH of hydroxide Relaxer?
The pH of a hydroxide relaxer is typically 13 or higher which is considered a high alkaline concentration. Therefore an acid-balanced shampoo must be used to neutralize the hydroxide, and to return the hair and scalp to a normal pH level. What is the processing time for a relaxer?
How do you make solid sodium hydroxide?
Solid sodium hydroxide is obtained from this solution by the evaporation of water. Solid sodium hydroxide is most commonly sold as flakes, prills, and cast blocks. In 2004, world production was estimated at 60 million dry tonnes of sodium hydroxide, and demand was estimated at 51 million tonnes.
Is calcium added to hydroxide relaxers?
Sometimes calcium (CaOH) is added to hydroxide relaxers, but it is not used solely to relax hair. What is the difference between Lye and No Lye Relaxers?