Monday, July 10, 2017

UV Protectant Hair Ingredients and Products

UV protectants are ideal for active people, for going to the beach where sand and water amplify UV radiation, and especially helpful for gray hair which tends to discolor (usually turning yellowish) in sunlight. Any hair benefits from UV protection because direct sunlight increases hair's porosity. Sunlight tends to make your hair's cuticles shrink and fuse together - like "shrinky dinks" or similar to what happens to hard plastic placed in a hot oven. That means tiny pores are opened up where the cuticle used to cover the hair. This takes only 200 hours in the sun - half an hour a day for just over a year.

Brown to black hair tends to fade both lighter and reddish in the sun and blonde hair and red hair lose color. Highlighted hair tends to become "brassy" and gray/white hair can turn yellowish as well.
One may not blog about summer and
sunshine without invoking a beach
scene. Here you go.


The Ingredients:
These are all UV light absorbers - the word "protectant" is commonly how these are marketed.

  • Octylmethoxycinnamate - This works best as a spray containing oils or oily ingredients - not as well in gels or shampoos or conditioners. 
  • Cinnamidopropyltrimonium chloride - This is a good UV protectant simply because it is also a substantive (bonds to hair) conditioner - it bonds to the hair whether applied as a shampoo, conditioner or spray, it stays on if you go in the water. It also helps prevent breakage because it is a conditioner. This is used in quite low concentrations – it does not need to be at the top of the ingredient list. 
  • Benzophenone-3, Benzophone-4 - Water-soluble UV absorber. For leave-on products, but may wash off if you go in the water. 
  • Quaternium-95 and Propanediol - This is also fairly new and is also a substantive conditioner, so it can be applied as a shampoo, conditioner, or leave-on and should stay on if you go in the water.
Products
Clothing

You know, wear a hat. A hat with a dense fabric (straw hats need to be a reasonably tight weave) will keep off much of the UV. Or you can buy a UPF 30 or 50-rated hat (the fabric has the UPF rating). Hats protect your eyes from sun so you don't get cataracts, keeps the sun off part of your face so you don't end up with lots of wrinkles or dry skin, prevents "part-burn." Hats keep the UV light off your hair, but your hair can still get pretty hot under a hat and dehydrate.

UV Buffs with UPF of 30 or 50 are handy too. Cover all your hair - if you have long hair, pin the ends up so they're covered.


1 comment:

  1. Could you please note which of those products are CG friendly and which are not?

    ReplyDelete