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2. Hair bleaching - Wikipedia

   en.wikipedia.org/wiki/Hair_bleaching

   Hair bleaching products can damage hair and cause severe burns to the scalp when applied incorrectly or left on too long. [17] Industrial bleaches that work by reduction (such as sodium hydrosulphite) react with a chromophore, the part of the molecule responsible for its color and decrease the number of carbon-oxygen bonds in it, making it ...

3. Perm (hairstyle) - Wikipedia

   en.wikipedia.org/wiki/Perm_(hairstyle)

   The disulfide bonds give hair its elasticity, and can be reformed with chemicals. Next, an oxidation lotion—hydrogen peroxide—was applied to close the disulfide bridges again, and the hair was reformed to the shape of the rod. The entire process took 6–8 hours at room temperature. In the 1970s, acid perms were invented.

4. Sodium peroxide - Wikipedia

   en.wikipedia.org/wiki/Sodium_peroxide

   Sodium peroxide is an inorganic compound with the formula Na 2 O 2.This yellowish solid is the product of sodium ignited in excess oxygen. [3] It is a strong base. This metal peroxide exists in several hydrates and peroxyhydrates including Na 2 O 2 ·2H 2 O 2 ·4H 2 O, Na 2 O 2 ·2H 2 O, Na 2 O 2 ·2H 2 O 2, and Na 2 O 2 ·8H 2 O. [4] The octahydrate, which is simple to prepare, is white, in ...

5. 5 Things to Avoid When You Have Alopecia Areata - AOL

   www.aol.com/5-things-avoid-alopecia-areata...

   The Bottom Line on What to Avoid for Alopecia Areata. Alopecia areata and the patchy hair loss it causes can be distressing. Plus, because this type of hair loss is caused by inflammation that ...

6. Minoxidil 10% and 15%: Is High Strength More Effective? - AOL

   www.aol.com/minoxidil-10-15-high-strength...

   At week 48, there was a whopping 45 percent more hair regrowth for men who used 5% minoxidil compared to 2% minoxidil. ... though. The men who used the 5% treatment had more side effects, like ...

7. Millions Of People Take Biotin For Hair Growth, And ... - AOL

   www.aol.com/lifestyle/millions-people-biotin...

   Changes in hair: You may start to notice thinning, hair loss, brittleness, or dryness. Changes in skin : This often looks like noticeable dryness, flaky, or scaly skin, especially around the eyes ...