07-03-2013, 06:36 AM
Join Date: Mar 2011
Welcome! The high temperature of the flat iron used in keratin straightening is damaging and can permanently alter the curl pattern - I think it's 450F for the Brazilian Blowout. If the keratin straightener won't shift with sulphate shampoos with added salt I'd cut the straight ends off and leave just natural and curly.
"Stage 2: At 160-175 degrees C (320 -347F)
Hair undergoes a glass transition phase (meaning the hair begins to flow as hot glass would). Plastic deformation is possible (meaning in a 'normal' hydrated state, hair is elastic and can stretch and return back to its original length. Hair does also have temporary plasticity which is why styles like roller sets, twist outs/knot outs can occur. However at this heating stage, the plasticity is NOT temporary, the hair may return to a 'normal' looking state but it will not be exactly the same)
Stage 3: Between 215 and 235 degrees C ( 419-455F)
The keratin in hair has a natural twist to it knows as an alpha helix (α-helix). This twist is present in all keratin, whether straight hair or curly hair. At this stage the helices of the hair protein melt (not reversible).
THE NATURAL HAVEN: Straightening Facts :How hot is too hot?
Looking or feeling healthy is not the same as hair being healthy, damage can occur to the core protein structure, the protective cuticle or both plus some products and ingredients are excellent at disguising damage.
Plenty of people successfully cut their own hair, you can use a Crea Clip or ponytail method (see YouTube), just take a little off at a time.
2a-2c, medium texture, porous/ colour treated. Three years CG, growing out mechanical and chemical damage = breakage and very high porosity. Past armpit length heading for waist.
Treatments: Komaza protein, Komaza Matani, coconut oil with sugar syrup. Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss ultimate volume
Styler: Umberto Giannini jelly, Boots curl creme, Rockin RInglets
Experimenting with: Mega-Tek, Curl Harmony reviver, Elvive Full Restore 5.