NIOD COPPER AMINO ISOLATE SERUM 3 1:1 (CAIS3) – BEST ANTI-AGING SERUM, BEST PEPTIDE SERUM
Product question] My Deciem Niod copper serum (CAIS 2:1) turned dark gray, is it safe to continue using it? (I still have the full bottle of it 😱😭) : r/SkincareAddiction