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Bond Builders For Damaged Wavy Hair

March 4, 2023 by Emily Evert Leave a Comment

Can You Really Repair Hair Bonds Damaged by Bleaching or Dyeing?

There are several types of hair bonds that can be broken. The ones broken during the process of bleaching hair or dyeing hair are primarily disulfide bonds, which are a type of covalent bonds. Those disulfide bonds cannot be fully repaired with any technology that we currently have.

The cosmetic chemists on the Beauty Brain podcast say bond builders like Olaplex and wellaplex do more conditioning than bond rebuilding. Covalent bonds or disulfide bonds are the ones damaged when hair is dyed. “It’s literally impossible to fully restore disfulfide bonds”. Hair repair products may rebuild hydrogen bonds or electrostatic bonding. 

Episode 216 on bond building explains how Olaplex has a patent that claims they rebuild disulfide bonds, but patents aren’t evidence of effective peer-reviewed science. 

What percentage of hair bonds are damaged while bleaching hair?

Typically 15-25% of bonds are damaged while bleaching hair, but it can be up to 45% in cases where “severe” bleaching is being done.

This is a quote from from Chemical and Physical Behavior of Human Hair by Clarence R. Robbins.

“Robbins and Kelly [5] have shown that 15–25% of the disulfide bonds in human hair are degraded during “normal” bleaching, however, as much as 45% of the cystine bonds may be broken during severe “in practice” bleaching. This latter amount of damage may occur while frosting hair, or while bleaching hair from black or brown-black to light blond”

damaged wavy hair 101: what does the most damae to wavy hair? Do bond rebuilders really work? What type of hair bonds are broken when hair is damaged?

What Type Of Hair Bonds are Damaged by Bleaching?

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Signs & Causes Of Damaged Wavy Hair

August 27, 2022 by Emily Evert Leave a Comment

Signs Of Damage In Naturally Wavy Hair and common causes of hair damage

Signs That Your Wavy Hair Is Damaged

Split ends. These are a giveaway that your hair is definitely damaged. It’s best to have them trimmed because while splits will start at the ends, if left untreated they can continue to split up the hair shaft.

Unexplained texture change. Texture can change due to hormonal changes so if you’ve gone through puberty, pregnancy, or changes in hormonal medications that could be the cause. Keep in mind that hair grows about half a inch per month, or six inches per year. So it may be several months or even a year after a hormonal change before you may really notice the change. If you have seen a texture change with no clear cause, it could be damage.

No elasticity. If you pull on your waves and they don’t spring back at all, that’s a lack of elasticity. It can be a sign of needing protein or using products that are too heavy…but it also can be a sign of damage.

Your hair feels dry compared to your norm.

Tangles. Tangles are normal for many hair types, but if your hair has become much more tangly this can be due to damage.

Breakage. If you see lots of broken pieces of hair happening, that’s a sign that your hair is likely weak due to damage.

Lots of frizz. All wavy hair has some frizz, some more than others. In general, there are many, many causes of frizz and most aren’t a sign of damage. But if yours has gotten really frizzy vs your usual that can be damage.

Your hair is rough feeling. Some hair types are naturally less soft than others. For example, really thick hair strands are often rougher feeling than fine hair strands. So this is another one that you should base on your norm.

High porosity hair is usually a sign of damage. Gets soaked easily but dries fast too. Feels rough after your hair dries unless you use leave in.

Your hair looks matte or dull rather than shiny. Hair type can make a difference in natural shine, but if your hair used to be shinier and has gotten more dull, that’s likely damage.

Longer hair is always going to be a little damaged because even gentle grooming and ordinary living life in the world causes some damage to hair. So the longer you grow your hair, the older your hair ends are, and the more time they’ve had to get damaged by life. Here is a quote about ‘natural’ (non-chemical or hair dye-related) damage in hair.

“Cuticle damage evidenced by broken scale edges can usually be observed a few centimeters away from the scalp. Such damage is caused by weathering and mechanical damage from the effects of normal grooming actions, such as combing, brushing and shampooing. In many long hair fibers (25 cm or longer), progressive surface damage may be observed (illustrated by Fig. 1.23). Stage 1 shows intact smooth scale edges and scale surfaces; stage 2 contains broken scale edges; in stage 3, the scales have been partially removed, and in stage 4 the hair splits indicating extensive cortical damage. ” quote is from Chemical and Physical Behavior of Human Hair by Clarence R. Robbins.

 

Causes Of Damage In Wavy Hair

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Wavy hair care blog owner

About Me

My name is Emily, I have been blogging since 2009. I found the curly girl method in 2018, which helped me to discover my naturally wavy hair. Since then, I’ve continued to wear my hair wavy, reading and watching tons about wavy hair. This blog is where I share what I’ve learned, in hopes of helping others. More about me and my backstory can be found on my about page.

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