Shampoo, conditioner and hair washing

Effect of shampoo, conditioner and permanent waving on the molecular structure of human hair

The hair is a filamentous biomaterial consisting of the cuticle, the cortex and the medulla, all held together by the cell membrane complex. The cortex mostly consists of helical keratin proteins that spiral together to form coiled-coil dimers, intermediate filaments, micro-fibrils and macro-fibrils. We used X-ray diffraction to study hair structure on the molecular level, at length scales betw...

Contact urticaria from panthenol in hair conditioner.

Panthenol is the alcohol corresponding to pantothenic acid, with the formula HOCH 2 C(CH 3) 2 CHOHCONH(CH 2) 2 CH 2 OH. It is a member of the vitamin B complex (B 5) and a component of coenzyme A. Panthenol is produced synthetically from 2,4-dihydroxy-3,3-dimethylbutyric acid and b-alanine. Common sources are food products such as liver, kidney, yeast, crude molasses, whole grain cereals, milk ...

Highly efficient and compatible shampoo for use after hair transplant

BACKGROUND Sensitive or hyperreactive skin is a common condition defined by prickling, burning, pain, and pruritus. Although this skin problem was initially described on the face, the scalp is often affected. A sensitive scalp can react with irritation to harsh surfactants or other additives which are often present in shampoos. For this reason, we developed a new rinse-off hypertolerant shampoo...

maidenhair shampoo and hair lotion: dermatopharmacological and dermatotoxicological evaluation

Effect of washing procedures on trace-element content of hair.

A pooled sample of hair was divided and portions prepared for analysis by three washing procedures, to evaluate the effect of washing procedure on the subsequent trace-element (Zn, Cu, Mg) content. The methods selected were a detergent wash, a hexane-ethanol wash, and an acetone-ether-detergent wash. For all elements, there was a significant difference among the results after these wash procedu...