06-22-2013, 08:44 AM
Join Date: Mar 2011
The ocular mucosa is alkaline (pH ~8 ) so any shampoo appropriate for hair (acid pH ~4.5) can sting the eyes. Bear in mind the pH scale is logarithmic so 7.5 is one thousand times more alkaline than 4.5 (10x10x10). No idea what Johnson's has to do with it, ANY 'no tears' baby shampoo is likely to be pH 7 at best so far from ideal for skin or hair.
"Mucus pH can vary greatly depending on the mucosal surface, with highly acidic environments capable of aggregating mucin fibers and greatly increasing the mucus viscoelasticity[52, 53]. Lung and nasal mucus are in general pH neutral [54, 55], and eye mucus is slightly basic with pH ~7.8 
"The isoelectric point for human hair optimally is a pH value of 4.0 to 4.5. Hair that is at its isoelectric point has a tight structure and a sealed flat cuticle layer on the outside of the strand. Things that can raise the pH of our hair are structural damage from processing or rough treatment; use of basic solutions on the hair such as perming solutions, relaxers, or baking soda; and soap bars or soap containing detergents. Hair at a higher pH is negatively charged, and has a more swollen and porous structure. It also has lifted, ruffled cuticles that contribute to a dull appearance, frizzy character, tendency to become tangled, and a higher propensity for breakage.
The Scoop on Vinegar
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.
CO-wash: Inecto coconut
Treatments: Komaza Matani, coconut oil, Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss ultimate volume, Inecto argan
Styler: Umberto Giannini jelly, Boots Essentials gel
Experimenting with: going back to basics