pH measurements during lactic acid stinging test in normal and sensitive skin.
Because of the lack of objective signs, the phenomenon of sensitive skin is hard to document. The measurement of the skin pH variations in the nasolabial fold, and on the forearm, after a single application of lactic acid on a preselected sensitive skin population, versus a control one, is proposed as a useful test to detect this kind of population.
Issachar
N
N
Département de Dermopharmacie et Biophysique Cutanée, Faculté de Pharmacie, Paris, France.
Gall
Y
Y
Borell
M T
MT
Poelman
M C
MC
D000328:Adult; D016022:Case-Control Studies; D003358:Cosmetics / Q000009:adverse effects; D003877:Dermatitis, Contact / Q000503:physiopathology*; D005145:Face; D005260:Female; D005542:Forearm; D006801:Humans; D006863:Hydrogen-Ion Concentration; D019344:Lactic Acid / Q000494:pharmacology*; D008297:Male; D012867:Skin / Q000187:drug effects; D012879:Skin Physiological Phenomena
D003358:Cosmetics; D019344:Lactic Acid