Unlike an oxidized permanent hair dye, since the semi-permanent hair dye shows acidity of pH 3 to 5, it does not cause hair damage due to hair swelling.

One object of the invention is the superior removal of more colorant and dye from hair colored with semi-permanent dyes. As a result, the user can achieve ...

The semi-permanent dyes do have certain advantages, however ... Thus, the user of a permanent dyeing system runs the risk of damage to the treated hair.

Permanent hair dyes have excellent dyeing effect and color persistence, but scalp irritation and skin damage by oxidizing agents and alkalis, itching and ...

... damage the hair, can improve the hair gloss and have high storage stability. ... For example, it can take the form of a semi-permanent hair dye, temporary ...

... does not associate hair damage with this oxidizing agent. The various hair ... Semi-Permanent hair-coloring Loving Care Ash Blonde No. 73, marketed by ...

Today, dyes for hair can be classified as temporary, semi-permanent and permanent. ... There is no evidence of hair damage, and the hair is actually left in good ...

Permanent hair dyes use ammonia, and this must be stated on the product packaging. Ammonia has an unpleasant smell, and can also damage the hair. Raising the ...

Unlike semi-permanent hair dyes, general semi-permanent hair dyes are acidic at pH 3 ~ 5, so they can cause hair damage due to swelling or damage to hair if ...

Similar damage to the hair can also result from permanent wave treatments. ... [0022] Semi-permanent hair coloring is resistant to several shampooing. The ...

Compositions for colouring or dyeing hair can be categorised into temporary, semi-temporary, semi-permanent, permanent and, more recently, the so-called demi- ...

Such hair dyes can with the bleaching system of the present invention for formulating of permanent, demi-permanent, semi-permanent or temporary hair dye ...

The toxicity of current permanent and semi-permanent synthetic hair color formulations is such that many U.S. physicians do not recommend hair coloring during ...

The pigments used in this type of hair color are called “direct dyes” and they are different from those used in oxidative dyes. Semi-permanent hair dyes do not ...

... hair coloring, both for correction to restore original color which can be damaged due to hot ironing step and for semi-permanent hair coloring. The aerosol ...

WO 98/27945 describes the use a low pH (pH 1 to 6) oxidative hair dye system to reduce hair damage. ... permanent, demi-permanent, semi-permanent or temporary ...

There is a permanent hair dye using a metal salt to solve the problems of skin irritation and hair damage, these are also divided into two solutions, ...

The present invention relates to a solid-phase cosmetic hair-coloring composition having temporary hair-coloring effects, and to a method for manufacturing ...

... permanent hair dyeing agent, so it does not cause damage by inflating the hair and does not use ammonia and hydrogen peroxide. There is an advantage that it can ...

... can significantly reduce hair damage associated with hair coloring without compromising hair colorant performance. ... semi-permanent hair color. The ...