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Cosmetics Formulation Development
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Choosing a dye for black hair
by
phoon1331
» Fri Feb 11, 2022 12:09 pm
need to use primary With which secondary? For example, black hair must be covered with PPD = 0.27%
TDS
= 0.55% RL = 0.275% MAP = 0.2725% DPE = 0.665%, then include in the colorant wearing
Antioxidant
which one is added?
phoon1331
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