Rose water helps to restore shine lost by washing the hair in days before conditioner [or after an oatmeal dry wash] because it contains a very small amount of attar of roses. The distillation process of rose oil/orange blossom oil and waters can be found on the excellent blog 'the regency redingote' by Kathryn Kane who covers all sorts of wonderful obscure points of the regency we wouldn't think of naturally.
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