![]() There is no cuticle left on the strands, you only see the inner part of the hair (called medulla). Grade 5 Porosity : Hair porosity like this is too compromised to save.Knowing how to deep condition curly hair can help you make the most of your locks. This hair porosity type could benefit from using conditioners more often than usual. The cuticles in this hair porosity are open, so it needs lots of moisture because it also loses it very easily. This hair is quite compromised, as it’s been through a lot of chemical processing, so it will need additional care and attention. Grade 4 Porosity : This is a hair porosity of tresses which have been bleached and lightened up to 7 shades lighter.The cuticles are halfway open, they allow moisture in but they also start losing it more easily. Since it’s been through some chemical processing, it has some level of damage. Grade 3 Porosity : This is hair that’s been altered and colored up to 5 shades lighter. ![]() The cuticles are still very tight and it’s hard to make moisture penetrate into the hair shaft. It doesn’t tangle too much and looks shiny. The hair is still very healthy and easy to manage. This applies to most people with virgin hair. Grade 2 Porosity : This is still natural virgin hair, but it’s been exposed to some type of environmental damage.Those with this hair porosity often have shiny hair which looks smooth with no product on. The cuticles on this hair type are extremely tight, and they don’t allow moisture in or out. This is very hard to find, and it’s more common in straight hair. Grade 1 Porosity : Virgin hair that has been exposed to little or no environmental damage.The American Board of Certified Hair Colorists categorizes porosity into 5 different levels: Using a protein hair treatment could help to repair some of the damage done to your hair and help you achieve strong curls. If your hair has experienced any of these factors, your curls may require protein-rich products. Frequent use of heat styling (flat irons, hair curlers etc.).Dying your hair, whether air drying or diffusing.Excessive exposure to the sun, UVA and UVB rays.There are several factors that can permanently affect hair porosity, some more drastically than others. This is because damage lifts the hair cuticles. The more damaged your hair is, the higher the porosity tends to be. Porosity can change any time the hair structure is altered or damaged. These scales can be more open or closed depending on a series of factors which include genetics, environmental agents, and hair damage. However, it can flow out again just as quickly. Moisture can easily reach inside the hair shaft. High porosity hair - Those with this hair porosity have a very open cuticle structure. ![]() Meaning moisture can reach inside the hair shaft quite easily, but at the same time it is not lost too quickly.
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