Abstract
An aqueous based hair straightening composition having a pH from 12 to 14 comprising i) an hydroxide ion generator; and ii) from 0.5 wt % to 20 wt % of the total composition of urea in which the weight ratio of urea to hydroxide generator is greater than 1:1.
| Original language | English |
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| Patent number | EP 1960056 B1 |
| Priority date | 6/11/06 |
| Filing date | 6/11/06 |
| Publication status | Published - 27 Apr 2011 |