there should be no reason to repeatedly bleach knots, once they are bleached, that's it...no more., if you keep putting more on, it will overprocess the hair and it will shed. I've never had trouble with the lace turning color when bleaching the knots....I think what you may be referring to is the underside of the base has a yellowish tinge to it once the knots have been bleached. that's normal...its not the lace, its the bleached knots.
DebbieS.
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