On deeper skin tones, the biggest risk is not the ingredients themselves but irritation from using them too aggressively, because inflammation can leave post-inflammatory hyperpigmentation that makes the skin darker than before
The Summary of Product Characteristics does not recommend regular TSH testing as part of standard monitoring during treatment
Then, samples were diluted with a solution containing phosphate buffer (0.01 mol/L monobasic potassium phosphate/dibasic potassium phosphate, pH 6.85) containing sodium dithionite, and after 10 min at room temperature, absorbance was measured at 420 and 432 nm against a matched curve containing only buffer [21]
Basalay MV, Davidson SM, Yellon DM
They are grouped purely as a research convenience so that researchers can study individual versus separate peptide activity, cross-pathway interactions and compatibility within multi-compound experimental systems
Yuyi Y, Fang W, Xingxing L, Bo S, Heng F