洗頭水一問!

2007-01-17 5:26 am
洗頭水有啲咩成份令佢可以清潔頭髮??
(最好用英文回答)

回答 (2)

2007-01-19 8:17 am
✔ 最佳答案
SHAMPOOS
They constitute an essential part of grooming.

An effective shampoo must:-

Strip the hair of dirt and excess oil.
Clean the scalp to remove the top layer of dead skin cells.

A shampoo might contain one or more types of following ingredients:-

(a) Soap:- Soap-based shampoos used as active cleansing ingredient may leave a residue on the hair if used in combination with hard water, thus leaving the hair dull. However, the residue can be removed with dilute lemon juice.

(b) Synthetic Detergents:- They do not tend to leave a residue, as they do not interact with hard water. The strength of the synthetic detergent will determine whether a shampoo is designated for dry, normal or oily hair.

(c) Acid:- To balance the alkaline nature of many shampoo that might leave hair looking dull and lifeless, mild acids are added to many shampoos to achieve a "pH-balance".

(d) Conditioners:- The purpose of a conditioner is to replenish the oils that detergents remove so as to make the shampooing process more convenient. Shampoos that contain detergents and conditioners, counteract one another to some extent, thereby reducing the overall effectiveness of the product.

(e) Medication:- Some shampoos contain ingredients to treat skin problems on the scalp, e.g. dandruff. Medicated shampoos contain agents which slow the growth of the skin of the scalp, and bring the inflammation of the oil glands under control, relieving the itching. They do not encourage hair growth.

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for your interest...
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CONDITIONERS
Choice of using a conditioner is one of personal experimentation and choice.

The active ingredients in these conditioners are proteins. They also contain quaternary compounds which help to control fly-away hair, a common problem in dry, cold climates and air-conditioned rooms. Besides the oils in the conditioners help to replenish those which have been stripped from the hair in the cleaning process.

They reduce the trauma of combing hair when wet and squeaky clean.

They contain ingredients which help to temporarily mend damaged hair by binding ruffled hair and split ends.

Not everyone needs a conditioner.
2007-01-19 2:50 am
有鹼性成分,
因為頭髮是帶酸性!!

所以以用 1d較鹼性成分的洗頭水來清潔,
才能去除污垢!


Because our hair is acidic, we must use some alkaline to wash our hair so that our hair can be clean.


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