A
Think of your hair as a...
Tiny tree trunk
What does your hair look's like when the scales are flat?
Shiny and smooth
What does your hair look's like when they are lifted or dirty?
Hair looks dull and feels rough
What is the main job of shampoo?
To remove sebum (natural scalp oil) and dirt
Definition of "The Chemistry"
When hair is overprocessed, those broken sulfur bonds turn into cysteic acid, which eats away at the protein.
Definition of "Astringents"
Ingredients like Witch Hazel or Menthol constrict the skin (scalp) and control sebum production.
What is something everyone most do before leaving this classroom
CLEAN UP AT THE END OF THE DAY
Definition of "Chelating Agents"
Look for Tetrasodium EDTA. This acts like a claw that grabs onto heavy metals and minerals (from hard water or chlorine) and pulls them off the hair so they don't interfere with chemical services.
A surfactant molecule has two ends what are they?
The Tail and the Head
Definition of "Key Ingredient"
Bis-Aminopropyl Diglycol Dimaleate. This is the "bridge" molecule. It has two ends that find the broken sulfur atoms and physically link them back together before they can turn into acid.
Definition of "The Head"
Loves water. It stays pointing outward toward the shower water.
Definition of "The Tail"
Hates water but loves oil. It sticks into the grease on your hair.
Definition of "Proteins (The Patch)"
Look for Hydrolyzed Keratin or Wheat Protein. "Hydrolyzed" means the protein molecules are broken down into tiny pieces. If they are too big, they just sit on top; if they are small enough, they can enter the cortex to fill in "potholes" caused by damage.
Why does most hair damage happens?
The disulfide bonds (S-S) inside the cortex are broken. These bonds give hair its strength and elasticity.
Definition of "The Magnetic Trick"
Hair has a naturally negative electrical charge, which becomes even stronger when it's damaged or freshly shampooed. Most conditioners use cationic surfactants, which have a positive charge.
Definition of "Maleic Acid"
Often used in "plex" products to maintain the pH and help create a protective film while the bonds are being repaired.
Definition of "The Action"
When you rinse, the water pulls on the "heads," which are attached to the "tails," which are attached to the oil. This lifts the dirt off your hair and flushes it down the drain.
According to the slide what are Shampoo and conditioner?
If shampoo is the "stripper" that takes things away, conditioner is the "restorer" that puts a protective layer back.
Definition of "Closing the Cuticle"
Conditioners are usually acidic (lower pH). This acidity helps those lifted scales from the shampoo step to lay flat again, sealing in moisture and making the surface reflect light (which creates shine).
Definition of "Static Control"
Since opposites attract, the conditioner's positive molecules "stick" to the negative spots on your hair like little magnets. This neutralizes static (no more "flyaway" hair) and coats the strand.